Provided in the present application are an on-board charger and a vehicle. The on-board charger comprises: a main power board; a power module assembly, which comprises conductive substrates and field-effect transistors, wherein each field-effect transistor comprises a field-effect transistor body and pins, the pins of the field-effect transistor are attached to the surface of a conductive substrate, and the field-effect transistor is electrically connected to the conductive substrate; and connectors, wherein each connector comprises a connector body, first pins and second pins, the connector body is attached to a conductive substrate, one end of each first pin is electrically connected to the connector body and the other end of the first pin is electrically connected to the conductive substrate, and one end of each second pin is electrically connected to the connector body and the other end of the second pin is electrically connected to the main power board. The field-effect transistors can be further densely laid out while the process cost is greatly reduced, such that that the layout for the miniaturization and light-weighting of an on-board charger can be achieved while the process cost is reduced.
A charging system, a charging method, and a vehicle are provided. The charging system includes a primary-side bridge circuit, a transformer, a first secondary-side bridge circuit, and a second secondary-side bridge circuit. The primary-side bridge circuit is connected with a primary winding of the transformer. The first secondary-side bridge circuit and the second secondary-side bridge circuit are connected with a secondary winding of the transformer respectively. On condition that power is transferred from the first secondary-side bridge circuit to the second secondary-side bridge circuit, switching transistors of the first secondary-side bridge circuit are turned on once switching transistors of the primary-side bridge circuit are on for a duration Td.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
B60L 53/122 - Circuits ou procédés pour entraîner la bobine primaire, c.-à-d. en alimentant la bobine en énergie électrique
B60L 53/60 - Surveillance et commande des stations de charge
3.
Detection circuit for on-board direct current/direct current (DC/DC) ground wire and on-board device
A detection circuit for the on-board direct current/direct current (DC/DC) ground wire and an on-board device are provided. The circuit includes a digital signal process (DSP) controller, a detection circuit, a standby circuit for an on-board DC/DC converter, and a power-supply negative wire for the on-board DC/DC converter. The detection circuit includes a comparator, a first conductive branch, a second conductive branch, a third conductive branch. In this way, the detection circuit is connected between the DSP controller and the standby circuit for the on-board DC/DC converter, and the detection circuit is connected between the DSP controller and the power-supply negative wire for the on-board DC/DC converter.
G01R 31/66 - Test de connexions, p. ex. de fiches de prises de courant ou de raccords non déconnectables
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
4.
CONTROL METHOD AND APPARATUS FOR INPUT SIGNAL OF DIRECT-CURRENT CONVERTER, AND STORAGE MEDIUM
The embodiments of the present application provide a control method and apparatus for an input signal of a direct-current (DC) converter, and a storage medium, which are applied to a DC boost circuit. The DC boost circuit comprises N DC converters, and each DC converter is provided with an interface that is connected to a DC power supply and a load. The method comprises: acquiring an output signal of a DC converter; obtaining an error between a target output signal and the output signal, and determining a reference duty ratio according to the error; and setting the duty ratio of an input signal of the DC converter as the reference duty ratio until the absolute value of a steady-state error of the DC boost circuit is less than a reference threshold. According to the method provided in the present application, a proportional controller, an integral controller and a resonance controller are connected in parallel, and the error between a set target output signal and an output signal of a DC converter is controlled, reducing the total harmonic distortion of the output signal.
Disclosed in the present invention is a charger circuit, which comprises a power factor correction module, a resonant power conversion module and a feedback control module. When an output voltage of the resonant power conversion module changes, the feedback control module is coupled with output voltage sampling hardware to adjust an output voltage of the power factor correction module, so that the circuit is always operated at a resonance point. By implementing the technical solution provided in the present application, a resonance circuit is always operated at a resonance point state by adjusting a PFC voltage by hardware, and the circuit efficiency is improved.
H02J 7/10 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
6.
BIDIRECTIONAL ON-BOARD CHARGER INSULATION RESISTANCE MEASUREMENT CIRCUIT AND METHOD
Embodiments of the present application disclose a bidirectional on-board charger insulation resistance measurement circuit and method. The circuit comprises: a first resistor, a second resistor, a third resistor, a fourth resistor, a first switch, a second switch, a first voltmeter, a second voltmeter, and a processing unit, wherein the first resistor is connected in series to the second resistor; the end of the second resistor away from the first resistor is connected to one end of the first switch, and the other end of the first switch is grounded; the third resistor is connected in series to the fourth resistor; the end of the fourth resistor away from the third resistor is connected to one end of the second switch, and the other end of the second switch is grounded; and the processing unit is configured to control the state of the first switch and the second switch, and to calculate the insulation resistance of a first end and a second end of a bidirectional on-board charger according to voltage values of the first voltmeter and the second voltmeter. According to the embodiments of the present application, the insulation resistance can be measured in real time.
G01R 27/02 - Mesure de résistances, de réactances, d'impédances réelles ou complexes, ou autres caractéristiques bipolaires qui en dérivent, p. ex. constante de temps
7.
STEP-DOWN CIRCUIT CONTROL METHOD AND APPARATUS, AND STORAGE MEDIUM
Disclosed in the present application are a step-down circuit control method and apparatus, and a storage medium. The method comprises: determining an initial output voltage reference value, determining an error signal according to the initial output voltage reference value and an output voltage value of a capacitor, determining a first input signal of a pulse modulation module, and using the error signal as a second input signal of the pulse modulation module; outputting, by means of the pulse modulation module, pulse modulation signals corresponding to the first input signal and the second input signal, the pulse modulation signals being used for adjusting the on-time of the first switching tube and the second switching tube; determining the duty cycle of a first switching tube and the duty cycle of a second switching tube according to the on-time; and adjusting the duty cycle of the first switching tube so that a voltage value of an inductor is less than or equal to an inductance voltage threshold, the inductance voltage threshold being determined according to a circuit current threshold that causes overcurrent protection of a step-down circuit. By adopting the present application, a start current can be effectively reduced, and the stability of a step-down circuit is improved.
The embodiments of the present application provide a voltage conversion circuit, a voltage conversion apparatus, a voltage conversion chip and a charging device. The voltage conversion circuit comprises: a charging input interface, a charging output interface, a filtering module, a switch module and a voltage conversion module, wherein the filtering module is used for suppressing a common-mode current signal; the switch module is used for being switched on when a voltage value of the charging input interface is not less than a preset voltage value, and being switched off when the voltage value of the charging input interface is less than the preset voltage value, such that the filtering module only operates when the voltage value of the charging input interface is not less than the preset voltage value; and the voltage conversion module is used for converting an input voltage value of the charging input interface into the preset voltage value and then outputting same by means of the charging output interface. In this way, the suppression of a common-mode current signal can be realized, thereby improving the operation stability and safety of a circuit system.
Disclosed in the present application are a frequency jitter optimization method and apparatus based on a switch power source. The method comprises: acquiring a first switch parameter of when a switch power source works in a rated working state; according to the first switch parameter, determining a first duty ratio; according to the first duty ratio, determining a first system gain of when the switch power source works in the rated working state; acquiring a second switch parameter of the switch power source after a frequency jitter is introduced; according to the second switch parameter and the first switch parameter, determining a duty ratio adjustment deviation value, and according to the duty ratio adjustment deviation value and the first duty ratio or a second duty ratio, determining a target duty ratio; and according to the target duty ratio, controlling the switch power source to work, such that the system gain of the switch power source is the same as the first system gain. By means of the present application, the loss of a switch power source can be effectively reduced, and the stability of the switch power source is improved.
Disclosed in the present application are a control method and apparatus for a power converter, and a storage medium. The method comprises: when the input voltage of a voltage input unit is greater than the output voltage of a voltage output unit, determining a target duty cycle of a second upper bridge arm switching transistor, and according to the target duty cycle, controlling the turn-on duration of a first upper bridge arm switching transistor to adjust the duty cycle of the first upper bridge arm switching transistor, wherein the duty cycle of a first lower bridge arm switching transistor is complementary to the duty cycle of the first upper bridge arm switching transistor, and the duty cycle of a second lower arm switching transistor is complementary to the duty cycle of the second upper bridge arm switching transistor; when the input voltage of the voltage input unit is equal to the output voltage of the voltage output unit, fixing the duty cycle of the first upper bridge arm switching transistor, and controlling the turn-on duration of the second lower arm switching transistor until the input voltage is less than the output voltage and the output voltage no longer increases. By using the present application, seamless switching of a four-switch DC/DC power converter can be conveniently and efficiently implemented, and switching loss can be reduced.
H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
11.
METHOD AND APPARATUS FOR SUPPRESSING CURRENT RIPPLE, DEVICE, AND READABLE STORAGE MEDIUM
Provided in the present application are a method and an apparatus for suppressing a current ripple, a device, and a readable storage medium, wherein the method for suppressing a current ripple comprises: a first device collects and calculates a current ripple value outputted by a circuit, and then determines whether the current ripple value is greater than a first threshold value. If the current ripple value is greater than the first threshold value, then the first device adjusts the bus voltage of the circuit; and if the first current ripple value is less than or equal to the first threshold value, then the first device does not adjust the bus voltage of the circuit. By means of the method of dynamically adjusting the bus voltage of the circuit, the objective of suppressing a current ripple outputted by the circuit is achieved.
A hysteretic three-phase voltage restoration method and apparatus, and a related computing device and a computer-readable storage medium. The method comprises: acquiring a two-phase voltage in a three-phase voltage; calculating a cosine value of the other phase voltage in the three-phase voltage according to the two-phase voltage in the three-phase voltage; performing advanced processing on the other phase voltage according to the cosine value of the other phase voltage, so to obtain a restoration value of the other phase voltage; and calculating, according to the restoration value of the other phase voltage, a voltage restoration value corresponding to the two-phase voltage in the three-phase voltage. By means of the method, the influence of the hysteresis of a three-phase voltage on PFC control is avoided, and the risk of power factor reduction is reduced, such that a power utilization rate can be maintained at a relatively high level.
PFCPFCPFC of the PFC circuit is adjusted by means of a control module. By using the characteristic of the CLLC circuit that voltage change will cause change of the working frequency, the CLLC circuit is enabled to avoid the resonant frequency, thereby eliminating ripple current in the output current of the circuit, making direct current output by the circuit stable, and solving the problem that the ripple current affects the service life of a vehicle-mounted power battery.
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
H02M 1/14 - Dispositions de réduction des ondulations d'une entrée ou d'une sortie en courant continu
14.
CONTROL CIRCUIT OF BIDIRECTIONAL CHARGING SYSTEM AND VEHICLE-MOUNTED BIDIRECTIONAL CHARGER
Provided are a control circuit of a bidirectional charging system and a vehicle-mounted bidirectional charger. The control circuit of a bidirectional charging system comprises an input module (100), a first switch module (200), a second switch module (300), and an output module (400), which are connected in sequence; the input module (100) comprises an input terminal (D1) and an input switch (K); the first switch module (200) comprises a first switching transistor (Q1); the second switch module (300) comprises a second switching transistor (Q2); and the output module (400) comprises a third switching transistor (Q3) and an output terminal (D2). By opening and closing the input switch (K), a signal DRIVE_STATE of the output terminal (D2) is controlled to be at a high level or low level. When DRIVE_STATE is at the high level, the bidirectional charging system can only operate in a charging mode, and when DRIVE_STATE is at the low level, the bidirectional charging system can only operate in a reverse mode. As such, the operating state of the entire bidirectional charging system is kept stable, and the possibility of damaging components in the bidirectional charging system and devices connected thereto is reduced.
H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
H02M 1/088 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques pour la commande simultanée de dispositifs à semi-conducteurs connectés en série ou en parallèle
H03K 17/687 - Commutation ou ouverture de porte électronique, c.-à-d. par d'autres moyens que la fermeture et l'ouverture de contacts caractérisée par l'utilisation de composants spécifiés par l'utilisation, comme éléments actifs, de dispositifs à semi-conducteurs les dispositifs étant des transistors à effet de champ
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
The present application provides an electronic lock feedback control circuit. In the electronic lock feedback control circuit, a thermistor in a sampling circuit is used to simulate a resistance value of an electronic lock that varies along with temperature, so as to obtain a resistance sampled value; a processor samples a supply voltage of a first power supply to obtain a voltage sampled value, controls, according to the obtained resistance and voltage sampled values, a voltage converter to convert the supply voltage of the first power supply into a voltage that varies along with the resistance value of the electronic lock, and supplies the voltage to the electronic lock for driving. Therefore, it is ensured that, even when an electronic lock is under a variable ambient temperature and/or a variable supply voltage, the current of the electronic lock is constant, and then the service life of the electronic lock is prolonged.
The present application provides an inductor fixing device, comprising a pair of frameworks, a magnetic core, an inductance coil, and a connecting terminal. The magnetic core is clamped between the pair of frameworks. The inductance coil is wound around the peripheral side of the magnetic core. A support frame is provided on either of the frameworks. One end of the connecting terminal is fixedly connected to the support frame, and the other end of the connecting terminal is fixedly connected to the portion of the inductance coil away from the support frame. The end of the connecting terminal connected to the support frame is provided with a conductive portion, and the conductive portion is used for being electrically connected to an external conductive element. According to the present application, the connecting terminal is connected to the inductance coil, the conductive portion is fixed on the support frame, and the connecting terminal is fixedly connected to the external conductive element by means of a second fastener, so as to achieve the positioning function of the inductance coil and improve the stability of the inductor fixing device.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
A vehicle-mounted drive anti-reverse connection apparatus (102) and device (10). The vehicle-mounted drive anti-reverse connection apparatus (102) comprises an electric energy drive module (20) and an anti-reverse connection module (30), wherein the anti-reverse connection module (30) comprises a switch unit (301) and a forward conduction unit (302); the electric energy drive module (20) is used for providing a drive voltage for the switch unit (301); one end of the switch unit (301) is connected to the forward conduction unit (302), and the other end of the switch unit (301) is grounded, and the switch unit is turned on when the drive voltage provided by the electric energy drive module (20) is greater than or equal to a turn-on threshold, and is turned off when the drive voltage provided by the electric energy drive module (20) is less than the turn-on threshold; and the forward conduction unit (302) is connected to an external battery pack (50), and is used for forming a closed loop with the external battery pack (50) when the switch unit (301) is turned on.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02H 11/00 - Circuits de protection de sécurité pour empêcher la commutation de mise en service dans le cas où une condition électrique de travail indésirable pourrait en résulter
H02H 7/18 - Circuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour pilesCircuits de protection de sécurité spécialement adaptés aux machines ou aux appareils électriques de types particuliers ou pour la protection sectionnelle de systèmes de câble ou de ligne, et effectuant une commutation automatique dans le cas d'un changement indésirable des conditions normales de travail pour accumulateurs
Disclosed in the present application is a series capacitor voltage equalization circuit, comprising a series capacitor circuit, an equalization voltage circuit, and a first equalization circuit. A first node is provided between a first capacitor and a second capacitor of the series capacitor circuit. The equalization voltage circuit is configured to provide an equalization voltage. The first equalization circuit comprises a first equalization resistor and a first triode. One end of the first equalization resistor is connected to a collector electrode of the first triode, an emitter electrode of the first triode is connected to the first node, and a base electrode of the first triode is connected to the equalization voltage circuit. By providing the first equalization resistor and the first triode, when a voltage difference between the voltage at two ends of the second capacitor and the equalization voltage is greater than a conduction voltage drop of the first triode, the second capacitor is charged by means of the first equalization resistor and the first triode, such that voltage values of the first capacitor and the second capacitor reach a balanced state, and the service life of the first capacitor and the service life of the second capacitor are basically equal, and thus the service life of the series capacitor is prolonged.
H02M 3/06 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des résistances ou des capacités, p. ex. diviseur de tension
H02M 1/00 - Détails d'appareils pour transformation
A charging system and a vehicle. The charging system comprises a primary side bridge circuit, a transformer (T), a first secondary side bridge circuit and a second secondary side bridge circuit. The primary side bridge circuit is connected to a primary winding of the transformer (T), and both the first secondary side bridge circuit and the second secondary side bridge circuit are connected to a secondary winding of the transformer (T). When power is transferred from the first secondary side bridge circuit to the second secondary side bridge circuit, switch tubes (Q1-Q4) of the first secondary side bridge circuit start to be switched on after a switching-on duration Td of switch tubes (Q5-Q8) of the primary side bridge circuit. The switch tubes (Q5-Q8) of the primary side circuit are configured to be switched on ahead of the switch tubes (Q1-Q4) of the secondary side circuit, such that the power transmitted to the primary side circuit is reduced in a DC-DC operation mode, so as to avoid damage to devices such as the switch tubes (Q5-Q8) of the primary side circuit and a high-voltage electrolytic capacitor (C3).
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 7/217 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
B60L 53/20 - Procédés de chargement de batteries spécialement adaptées aux véhicules électriquesStations de charge ou équipements de charge embarqués pour ces batteriesÉchange d'éléments d’emmagasinage d'énergie dans les véhicules électriques caractérisés par des convertisseurs situés dans le véhicule
A tamper verification method and apparatus. The method comprises: extracting second information from first information (101), wherein the first information comprises third information, the third information comprises the second information, and information corresponding to the third information, and the second information is generated according to the information corresponding to the third information; generating fourth information according to the first information (102); and when the second information is the same as the fourth information, determining that the first information is not tampered with (103). By means of verifying whether verification information is tampered with, the information security can be ensured.
A high-voltage control apparatus, which is applied to a new energy vehicle. The apparatus comprises: a high-voltage control loop (501), an on-board charger power electronic conversion loop (3021), and an electric heater main loop (3040), wherein the electric heater main loop (3040) comprises an electric heater power electronic conversion loop (3042) and one or more heating elements (3043); the high-voltage control loop (501) is an on-board charger control loop (3022); when a new energy vehicle is in a parking state, the high-voltage control loop (501) is used to control the on-board charger power electronic conversion loop (3021) to receive electric energy of an external power grid, and to convert the electric energy of the external power grid into a high-voltage direct current and input the high-voltage direct current into a power battery (102); and when the new energy vehicle is in a driving state, the high-voltage control loop (501) is further used to control the electric heater power electronic conversion loop (3042) to receive the high-voltage direct current of the power battery (102), and to convert the high-voltage direct current of the power battery (102) into heat energy by means of the one or more heating elements (3043). The apparatus simplifies a control loop, thereby saving on related components and effectively reducing the costs.
A system and method for inspecting the working state of a main negative relay. The system comprises a first loop and a level detection circuit (500), the first loop comprising a first DC module (100), a main positive relay (300), a second DC module (200) and a main negative relay (400), which are connected in sequence, and the level detection circuit (500) comprising a first protection device (510), a detection device (520) and a sampling circuit module (530), wherein a first end of the first protection device (510) is connected to a positive electrode of the first DC module (100) and a first end of the main positive relay (300), a second end of the first protection device (510) is connected to a first end of the detection device (520), the sampling circuit module (530) and a first end of the main negative relay (400), and a second end of the detection device (520) is connected to a negative electrode of the first DC module (100) and a second end of the main negative relay (400). A level signal is collected by means of the sampling circuit module (530) to determine the working state of the main negative relay (400), so that the inspection system can report fault information in a timely manner, and the fault determination accuracy is improved.
G01R 31/327 - Tests d'interrupteurs de circuit, d'interrupteurs ou de disjoncteurs
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquementContrôle des paramètres de fonctionnement, p. ex. de la vitesse, de la décélération ou de la consommation d’énergie
A main negative relay detection system (10). The main negative relay detection system (10) comprises a first loop (100) and a detection circuit (110); the first loop (100) comprises a first power source (DC1), a main positive relay (K1), a load (DC2) and a main negative relay (K2); and the detection circuit (110) comprises a second power source (VCC), a first resistor (R1), a second resistor (R2), a third resistor (R3) and a micro control unit (MCU), wherein a positive electrode of the first power source (DC1) is connected to a positive end of the main positive relay (K1), a negative end of the main positive relay (K1) is connected to a positive electrode of the load (DC2), a negative electrode of the load (DC2) is connected to a positive end of the main negative relay (K2), and a negative end of the main negative relay (K2) is connected to a negative electrode of the first power source (DC1); and a positive electrode of the second power source (VCC) is connected to a first end of the first resistor (R1), a second end of the first resistor (R1) is connected to a first end of the second resistor (R2), a first end of the third resistor (R3) and the micro control unit (MCU) respectively, a second end of the second resistor (R2) is connected to a negative end of the main negative relay (K2) and a negative end of the second power source (VCC) respectively, and a second end of the third resistor (R3) is connected to a positive end of the main negative relay (K2). Said system facilitates improvement of the safety of automobiles.
A resistance load control circuit and an electric vehicle. The resistance load control circuit comprises a one-way energized circuit (210), a control switch circuit (230) and a voltage divider circuit (220), wherein the control switch circuit (230) and the voltage divider circuit (220) are respectively arranged inside the electric vehicle; an output terminal of the one-way energized circuit (210) is connected to a first input terminal of the voltage divider circuit (220); an output terminal of the voltage divider circuit (220) is connected to a first input terminal of the control switch circuit (230); and a second input terminal of the voltage divider circuit (220) is connected to an output terminal of the control switch circuit (230). Therefore, the present invention solves the problem that the voltage of a pulse modulation signal of a bidirectional charger is abnormally pulled down.
A positive and negative electrodes-based relay detection circuit, and a detection apparatus. The relay detection circuit comprises a power supply circuit, a positive electrode relay detection circuit, a negative electrode relay detection circuit, and an auxiliary detection circuit; the power supply circuit comprises a power source, an electric device, a positive electrode relay, and a negative electrode relay; the positive electrode relay detection circuit comprises a first resistor, a second resistor, a third resistor, and a first voltage sampling end; the negative electrode relay detection circuit comprises a fourth resistor, a fifth resistor, a sixth resistor, and a second voltage sampling end; and the auxiliary detection circuit comprises a seventh resistor, an eighth resistor, and a third voltage sampling end. When detecting the state of the positive electrode relay and the state of the negative electrode relay, a common sampling point voltage is used as detection basis, greatly improving the accuracy and detection efficiency of detection of the positive electrode relay and the negative electrode relay.
A relay adhesion detection circuit, method and system, which are used for implementing relay adhesion detection in an electric vehicle fast-charging circuit (20). The detection circuit comprises: a first detection module (101), a second detection module (102), a third detection module (103) and a micro-control unit (104). When a positive relay (201) and a negative relay (202) in the electric vehicle fast-charging circuit (20) are not driven, the micro-control unit (104) determines, according to a collected voltage value at an output end of the first detection module (101), a collected voltage value at an output end of the second detection module (102), and a collected voltage value at an output end of the third detection module (103), whether the positive relay (201) and the negative relay (202) are adhered. Therefore, whether a relay in the electric vehicle fast-charging circuit (20) generates an adhesion failure fault state can be detected.
A differential sampling-based relay detection circuit and a detection device, comprising a power supply circuit and a positive relay detection circuit. The power supply circuit comprises a power supply (D1), an electric device (D2), a positive relay (K1) and a negative relay (K2). The positive relay detection circuit comprises a first in-phase amplification circuit, a first resistor (R1) and a second resistor (R2). When the voltage at a first sampling terminal (AD-SMP1) at the output end of the first in-phase amplification circuit has a low level, the positive relay (K1) is determined to be in an off state. When the voltage at the first sampling terminal (AD-SMP1) has a high level, the positive relay (K1) is determined to be in a closed state or an adhesion state. The states of the positive relay (K1) and the negative relay (K2) can be automatically detected to determine whether a failure occurs or not. The process is concise and efficient, and the probability of a safety accident due to a relay failure when a user is driving a vehicle is significantly reduced.
A contactor state detecting circuit (20), a system (60) and a vehicle. The contactor state detecting circuit (20) comprises a first power supply (200), a first contactor (201), a current signal detector (202) and a voltage collecting unit (203), wherein one terminal of the first power supply (200) is connected to one terminal of the first contactor (201); the first contactor (201) is connected between a charging port (21) and a battery (22); the other terminal of the first power supply (200) is connected to a first terminal of the current signal detector (202); a second terminal of the current signal detector (202) is connected to the other terminal of the first contactor (201); a third terminal of the current signal detector (202) is used for outputting a voltage signal denoting the opening and closing states of the first contactor (201); and the third terminal of the current signal detector (202) is connected to the voltage collecting unit (203), and the voltage collecting unit (203) is used for determining the state of the first contactor (201) according to the voltage signal output by the current signal detector (202). According to the present invention, the state of the first contactor (201) is detected according to an output voltage of the current signal detector (202), thereby accurately determining the state of the contactor.
A method and system for detecting relay adhesion, the system for detecting relay adhesion comprising a fast charge opening (120), a rechargeable battery (110), a first relay (130) connected between a positive electrode of the rechargeable battery (110) and the fast charge opening (120), and a second relay (140) connected between a negative electrode of the rechargeable battery (110) and the fast charge opening (120), respectively, and further comprising a standard voltage circuit (150) connected between the positive electrode and negative electrode of the rechargeable battery (150), as well as a detection circuit (160) connected between the first relay (130) and the second relay (140). The present system for detecting relay adhesion only needs two voltages to be measured, and relay adhesion detection can be completed by means of a small amount of circuit elements. Also, the introduction of a detection switch solves the electrical charge safety guidelines problem of the fast charge opening, and the resistance of a detection resistor may be configured to be lower, facilitating improving an anti-interference capability.
A relay working state inspection system and method, and a reverse connection detection method. In the relay working state inspection system, a positive electrode of a second DC module (113) is connected to one end of a first sampling circuit module (121), one end of a first resistor (R1), and one end of a main positive relay (112); the other end of the first resistor (R1) is connected to one end of a second resistor (R2), one end of a third resistor (R3), one end of a fourth resistor (R4), and a second measurement processing element (1221); the other end of the second resistor (R2) is connected to a negative electrode of the second DC module (113), the other end of the first sampling circuit module (121), and one end of a main negative relay (114); the other end of the third resistor (R3) is connected to a positive electrode of a first DC module (111) and the other end of the main positive relay (112); the other end of the fourth resistor (R4) is connected to a negative electrode of the first DC module (111) and the other end of the main negative relay (114); and a control processing module (130) is connected to the first sampling circuit module (121), a second sampling circuit module (122), a third sampling circuit module (123), the main positive relay (112) and the main negative relay (114). The inspection system can conveniently report fault information in a timely manner, and the fault determination accuracy is improved.
A bidirectional resonant circuit and an automobile. The circuit comprises a first bridge circuit, a transformer, a resonant circuit and a second bridge circuit, wherein the first bridge circuit is connected to a secondary winding of the transformer, one end of the resonant circuit is connected to a primary winding of the transformer, and the other end of the resonant circuit is connected to the second bridge circuit. When the bidirectional resonant circuit is in a reverse operating state, within a set period, a controllable switch tube of the first bridge circuit is turned on with a fixed duty cycle, and a controllable switch tube of the second bridge circuit is turned on with an adjustable duty cycle. Without adding components, in the reverse operating state and on the basis of controlling the turning on of the first bridge circuit, the controllable switch tube, connected to a high-voltage battery, of the second bridge circuit is controlled to be turned on, so as to increase a voltage range during the reverse operation. The number of components of a product is reduced, such that the product volume is reduced, and accordingly, the costs are reduced, and the loss of the circuit itself is also reduced.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
Provided in the present application are a direct current output circuit and a method. The direct current output circuit comprises: an input power source end, a controller, a power conversion circuit, a rectifying and filtering circuit, a voltage sampling circuit, and an output power source end, wherein the voltage sampling circuit performs attenuation on voltages in different intervals among a wide range of output voltages according to different ratios and by means of a plurality of voltage dividing sampling modules, which ensures that a sampling voltage amplitude satisfies a sampling precision requirement of the controller, and the controller controls a voltage amplitude output of the power conversion circuit according to a sampling voltage fed back by the voltage sampling circuit, and thereby the precision of the controller in controlling an output voltage is increased, and consequently the precision and accuracy of the output voltage is increased.
H02M 3/156 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation
Provided in the present application is a voltage conversion circuit, comprising an inverter unit, a resonator unit, a transformer unit, and an output rectifier unit electrically connected in sequence. The inverter unit receives a first direct current voltage from a first voltage input end and invertedly converts the first voltage into a first alternating current voltage. The inverter unit comprises a first branch and a second branch. The first branch and the second branch are connected in parallel between a high voltage end and a low voltage end of the first voltage input end. The first branch comprises a first inverted output end. The second branch comprises a second inverted output end. The first and second inverted output ends together output the first alternating current voltage. The first branch receives a frequency-adjustable control signal. The second branch receives a duty cycle-adjustable control signal. The resonator unit, the inverter unit, and the output rectifier unit together constitute a resonant cavity to form a resonant circuit so as to convert the first alternating current voltage into a second direct current voltage. Also provided in the embodiments of the present application is an electronic device comprising the voltage conversion circuit described above.
H02M 7/48 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02M 7/12 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande
H02M 3/28 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire
34.
CHARGING SIGNAL DETECTION CIRCUIT AND VEHICLE-MOUNTED DEVICE
A charging signal detection circuit (110) and a vehicle-mounted device. The charging signal detection circuit (110) comprises a power supply (1101), a first network module (1102), a second network module (1103), a switching module (SW), and a micro-control unit; the positive electrode of the power supply (1101) is separately connected to a first end of the first network module (1102) and a first end of the second network module (1103); a second end of the first network module (1102) is connected to a first end of the switching module (SW); a second end of the second network module (1103) is connected to a second end of the switching module (SW); a third end of the switching module (SW) is connected to a first end of the micro-control unit; a second end of the micro-control unit is connected to a first position (A) of a body (120) of an electric vehicle; the negative electrode of the power supply (1101) is connected to a second position (B) of the body (120) of the electric vehicle; when the electric vehicle is charged by a charging device (100), a first end of the charging device (100) is connected to a third position (C) of the body (120) of the electric vehicle, and a second end of the charging device (100) is connected to the third end of the switching module (SW); and the charging device (100) comprises a charging protection resistor. The implementation of the present solution is beneficial to improve the accuracy of charging signal detection.
A charging signal sampling circuit and a related apparatus. The charging signal sampling circuit is applied to an electric vehicle. The charging signal sampling circuit comprises a charging device circuit (100) and a charger connection confirmation circuit (200); the charger connection confirmation circuit (200) comprises a first voltage division circuit (210), a second voltage division circuit (220), a filtering circuit (230), and a regulating circuit (240); the regulating circuit (240) and the charging device circuit (100) are respectively connected to a vehicle body of the electric vehicle; a first potential is generated between the charging device circuit (100) and the vehicle body, a second potential is generated between the charger connection confirmation circuit (200) and the vehicle body, and the first potential and the second potential form ground offset. By using the present sampling circuit, the current flowing through a connection confirmation resistor in a charging device is changed, and the magnitude of ground bias voltage is measured, so that the influence of the ground bias voltage on system sampling is reduced.
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
36.
CONSTANT CURRENT SOURCE SAMPLING CIRCUIT AND METHOD
A constant current source sampling circuit and method. The constant current source sampling circuit comprises a constant current source circuit (210), a resistor (230) to be sampled, a microcontroller unit (MCU), a power supply (220), and a sampling voltage output terminal (Vout); a first terminal (211) of the constant current source circuit (210) is connected to the positive electrode of the power supply (220); a first terminal (231) of the resistor (230) to be sampled is connected to a second terminal (212) of the constant current source circuit (210) and the sampling voltage output terminal (Vout); the negative electrode of the power supply (220) is connected to a second terminal (232) of the resistor (230) to be sampled and a third terminal (213) of the constant current source circuit (210); a fourth terminal (214) of the constant current source circuit (210) is connected to the MCU; the sampling voltage output terminal (Vout) is connected to the MCU. The MCU detects the initial resistance value of the resistor (230) to be sampled to determine a constant current value output by the constant current source circuit (210), so that the resistor (230) to be sampled in different resistance value intervals corresponds to different constant current values, and the sampling voltage meets requirements for the sampling range and sampling accuracy of the MCU, thereby improving the sampling efficiency of the constant current source sampling circuit.
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
G05F 1/56 - Régulation de la tension ou de l'intensité là où la variable effectivement régulée par le dispositif de réglage final est du type continu utilisant des dispositifs à semi-conducteurs en série avec la charge comme dispositifs de réglage final
37.
CHARGING SIGNAL DETECTION CIRCUIT AND CHARGING SIGNAL DETECTION METHOD
A charging signal detection circuit and a charging signal detection method. The charging signal detection circuit comprises a power supply (101), a constant-current source circuit (120), a voltage division circuit (130), a change-over switch (102), a microcontrol unit (103), and a vehicle ground wire (104); a positive electrode of the power supply (101) is connected to an input end of the constant-current source circuit (120) and an input end of the voltage division circuit (130), and an output end of the constant-current source circuit (120) is connected to a first change-over port of the change-over switch (102); an output end of the voltage division circuit (130) is connected to a second change-over port of the change-over switch (102), a fixed port of the change-over switch (102) is connected to a first end of the microcontrol unit (103), and a second end of the microcontrol unit (103) is connected to the vehicle ground wire (104); when an electric vehicle is charged, the fixed port of the change-over switch (102) is further used for connecting an input end of a charging device (110), and an output end of the charging device (110) is connected to the vehicle ground wire (104), wherein the charging device (110) comprises a charging protection resistor (111). The charging signal detection circuit facilitates accurately determining a charging signal, to accurately determine the current charging state of the electric vehicle.
G01R 31/00 - Dispositions pour tester les propriétés électriquesDispositions pour la localisation des pannes électriquesDispositions pour tests électriques caractérisées par ce qui est testé, non prévues ailleurs
G01R 19/25 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant une méthode de mesure numérique
The present application provides an active clamping circuit and a related device. The active clamping circuit comprises an input circuit, a transformer and an output circuit. The input circuit comprises a clamping circuit module and an absorption circuit module, and the transformer comprises a primary winding and a secondary winding; the input circuit is connected to the output circuit by means of the transformer; the clamping circuit module and the absorption circuit module are connected to the primary winding, and the secondary winding is connected to the output circuit. The active clamping circuit provided in the present application optimizes the absorption of a spike voltage, facilitates effective inhibition on the spike voltage when a silicon carbide device is used, reduces electromagnetic interferences, and avoids the turn-on loss of a main switch tube when capacitor capacity is large.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
H02M 1/32 - Moyens pour protéger les convertisseurs autrement que par mise hors circuit automatique
39.
VOLTAGE COMPENSATION METHOD, APPARATUS, AND DEVICE
A voltage compensation method, apparatus, and device. Said method comprises: acquiring a first voltage to be compensated outputted after a first alternating-current voltage at the current moment passes through a voltage filter (S100); according to hysteresis duration of the voltage filter and an angular frequency of said first voltage, determining a compensation phase angle of said first voltage (S101), wherein the hysteresis duration of the voltage filter is determined by the capacitance value and the resistance value of the voltage filter; and according to said first voltage, the angular frequency of said first voltage, and the compensation phase angle, determining an output voltage of said first voltage after said first voltage is subjected to voltage phase compensation (S102). Said method performs voltage phase compensation on a voltage to be compensated after said voltage passes through a voltage filter, greatly increasing the power factor.
H02M 1/42 - Circuits ou dispositions pour corriger ou ajuster le facteur de puissance dans les convertisseurs ou les onduleurs
H02M 7/758 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continuTransformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant alternatif avec possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type thyratron ou thyristor exigeant des moyens d'extinction utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la forme d'onde ou de la fréquence de sortie
40.
CIRCUIT AND APPARATUS FOR CONTROLLER AREA NETWORK COMMUNICATION
Disclosed are a circuit and apparatus for controller area network communication. The circuit comprises a first communication unit, a second communication unit and a logic circuit connected between the first communication unit and the second communication unit, wherein a power supply end of the first communication unit and a power supply end of the second communication unit are connected to a power source; a grounding end of the first communication unit and a grounding end of the second communication unit are connected to a grounding wire; the grounding end of the first communication unit and the grounding end of the second communication unit have the same ground level; a sending end of the first communication unit and a sending end of the second communication unit are connected to an input end of the logic circuit; and a receiving end of the first communication unit and a receiving end of the second communication unit are connected to an output end of the logic circuit. By implementing the embodiments in the present application, when no transceiver is provided, a plurality of on-board or on-chip communication units can perform communication by using a controller area network having the same ground level.
Disclosed in the embodiments of the present application are an isolation circuit and apparatus for controller area network communication, the isolation circuit comprising an MCU1, an MCU2, and a logic circuit connected between the MCU1 and MCU2, a power supply terminal of the MCU1 and a power supply terminal of the MCU2 being connected to a power source, a ground terminal of the MCU1 and a ground terminal of the MCU2 being connected to a ground wire, the ground terminal of the MCU1 and the ground terminal of the MCU2 being at different ground levels, a transmitting terminal of the MCU1 being connected to a first input terminal of the logic circuit and a receiving terminal of the MCU1 being connected to a first output terminal of the logic circuit, and a transmitting terminal of the MCU2 being connected to a second input terminal of the logic circuit and a receiving terminal of the MCU2 being connected to a second output terminal of the logic circuit. Implementation of the embodiments of the present application can achieve transceiver-free CAN communication with multiple on-board or on-chip microcontroller units using different ground levels, and can isolate multiple CAN signals to eliminate mutual interference during multi-signal interaction.
The embodiments of the present application disclose a CAN communication-based intra-board communication circuit and apparatus. The intra-board communication circuit is used for implementing intra-board CAN communication among a first communication node, a second communication node and a third communication node; a receiving end of the first communication node is connected to a receiving end of the second communication node; a first input end of the intra-board communication circuit is connected to a sending end of the first communication node; a second input end of the intra-board communication circuit is connected to a sending end of the second communication node; a third input end of the intra-board communication circuit is connected to a sending end of the third communication node; a first output end of the intra-board communication circuit is connected to the receiving end of the first communication node; and a second output end of the intra-board communication circuit is connected to a receiving end of the third communication node. By implementing the embodiments of the present application, CAN signals among the communication nodes can be isolated, and CAN signal interference among the communication nodes is eliminated, reducing the costs.
Disclosed are an in-board communication circuit and an in-board communication apparatus. The in-board communication circuit comprises a first diode, a second diode, and a first resistor; and the in-board communication apparatus comprises a first communication node, a second communication node, and the in-board communication circuit. By implementing the embodiments of the present application, CAN communication between communication nodes can be realized in a board without using a CAN transceiver, thereby reducing the hardware cost.
Disclosed in embodiments of the present application are an intra-board communication circuit and an intra-board communication device. The intra-board communication circuit comprises a first diode, a second diode, a first resistor, a second resistor, and an isolation chip. The intra-board communication device comprises a first communication node, a second communication node, and the intra-board communication circuit. By implementing the embodiments of the present application, CAN communication between communication nodes can be achieved in a board, without using a CAN transceiver, thereby reducing the hardware cost.
Embodiments of the present application disclose an intra-board communication circuit and device employing CAN communication. The intra-board communication circuit is used to achieve intra-board CAN communication between a first communication node, a second communication node, and a third communication node. A first input terminal of the intra-board communication circuit is connected to a transmission terminal of the first communication node, a second input terminal of the intra-board communication circuit is connected to a transmission terminal of the second communication node, and a third input terminal of the intra-board communication circuit is connected to a transmission terminal of the third communication node. A first output terminal of the intra-board communication circuit is connected to a receiving terminal of the first communication node, a second output terminal of the intra-board communication circuit is connected to a receiving terminal of the second communication node, and a third output terminal of the intra-board communication circuit is connected to a receiving terminal of the third communication node. The embodiments of the present application allow CAN signals between communication nodes to be isolated from each other, thereby eliminating CAN signal interference between the communication nodes.
A circuit, method and system for charging a low-voltage battery (23). The charging circuit (30) is connected to a charging pile (10) and the low-voltage battery (23), and comprises: a detection circuit (31), a control circuit (32), and a conversion circuit (33); the detection circuit (31) is used to output a first voltage value; the control circuit (32) is used to compare the first voltage value with a first reference voltage value, and output, when the first voltage value is less than the first reference voltage value, a control instruction for connecting the conversion circuit (33); the conversion circuit (33) is used to receive the control instruction, which is outputted by the control circuit (32) and is for connecting the conversion circuit (33), to enter a connecting state; and when in the connecting state, the conversion circuit (33) receives direct current outputted by the charging pile (10) and inputs the direct current into the low-voltage battery (23). Therefore, after charged, the low-voltage battery (23) can supply power to devices such as a vehicle control device (21) and a BMS, so as to ensure the normal operation of an electric vehicle (20). The method improves the charging efficiency of the low-voltage battery (23), and reduces labor cost and hardware cost.
A charging circuit and device, and an electric vehicle. The charging circuit comprises a power battery module (101), a first switch module (102), a DC-to-DC converter (103) and a low-voltage battery module (104); one end of the power battery module (101) is connected to one end of the first switch module (102), the other end of the first switch module (102) is connected to one end of the DC-to-DC converter (103), the other end of the DC-to-DC converter (103) is connected to one end of the low-voltage battery module (104), and the other end of the low-voltage battery module (104) is connected to the other end of the power battery module (101). The invention facilitates improvement of the intelligence and convenience of supplying power to a low-voltage battery in the whole vehicle system.
A product reliability testing method and apparatus, a storage medium, and an electronic device. The method comprises: acquiring a first image of a standard product, the first image comprising a first positioning member and a plurality of first reference members having color identifiers, and the first reference members having a preset gray value range (S201); acquiring a second image of a product to be tested, the second image comprising a second positioning member, and the second positioning member being a product assembly corresponding to the first positioning member in the second image (S202); establishing an affine relationship between the first image and the second image according to the first positioning member and the second positioning member (S203); a region of each first reference member being affine to the second image according to the affine relationship to obtain a first region to be tested, corresponding to the region where the first reference member is located, in the second image (S204); converting an image of the first region to be tested into a tone gray image, and obtaining a first gray value of each pixel point in the tone gray image (S205); and when a total pixel area of pixel points of which the first gray values are within the preset gray value range is greater than a first threshold, determining that the mounting of a first member to be tested of the product to be tested is qualified (S206). The method has high efficiency and high accuracy.
An onboard low-voltage battery charging circuit and an electric vehicle. The charging circuit comprises: a CP feed circuit (100), a low-voltage power insufficiency control circuit (200), a power insufficiency detection circuit (300), a low-voltage battery (400), a power supply control circuit (500), an S2 switch (600), and a charging pile (700); and the low-voltage power insufficiency control circuit (200) has a first input end connected to an output end of the CP feed circuit (100), a second input end connected to an output end of the power insufficiency detection circuit (300), and an output end connected to a control end of the S2 switch (600). When the low-voltage battery (400) of a vehicle is insufficient in power, the low-voltage power insufficiency control circuit (200) can output a control instruction to control the closing or opening of the S2 switch (600), so that alternating current is fed to the low-voltage battery (400) from the charging pile (700) by means of the power supply control circuit (500) to perform charging. The present invention solves the problems of low charging efficiency and high labor costs or hardware costs when low-voltage batteries of the current electric vehicles are insufficient in power.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
B60L 53/00 - Procédés de chargement de batteries spécialement adaptées aux véhicules électriquesStations de charge ou équipements de charge embarqués pour ces batteriesÉchange d'éléments d’emmagasinage d'énergie dans les véhicules électriques
50.
HEAT DISSIPATION ASSEMBLY AND ASSEMBLING METHOD FOR HEAT DISSIPATION ASSEMBLY
The present application discloses a heat dissipation assembly and an assembling method for the heat dissipation assembly. The heat dissipation assembly comprises a housing, magnetic elements, thermal grease and insulating plates; a mounting surface and accommodation grooves are provided on the housing; the accommodation grooves are recessed towards the interior of the housing from the mounting surface; the magnetic elements are accommodated in the accommodation grooves; the thermal grease surrounds the periphery of the magnetic elements, and the accommodation grooves are filled with the thermal grease; the insulating plates are mounted on the mounting surface, and the magnetic elements are fixed on the insulating plates; and ventilation passages are further provided on the housing, and the ventilation passages are spaced apart from the accommodation grooves. The heat dissipation assembly provided in the present application can rapidly reduce the temperature inside the magnetic elements and increase the heat dissipation efficiency of the heat dissipation assembly.
Disclosed are a power supply apparatus, a vehicle, and a device. The power supply apparatus comprises a fuel cell, a power cell, and an integrated electric energy conversion module. The integrated electric energy conversion module is respectively connected to the fuel cell and the power cell; the fuel cell is used for converting chemical energy into electric energy to obtain first direct current; the integrated electric energy conversion module is used for converting the first direct current into second direct current, and using the second direct current for charging the power battery. Embodiments of the present application can solve the problem that a voltage range of the fuel cell is inconsistent with a voltage range of the power cell, so that the fuel cell and the power cell can be directly matched.
A power supply apparatus, a vehicle and a device. An integrated electric energy conversion apparatus comprises a DCF module and a bidirectional OBC module. The integrated electric energy conversion apparatus further comprises any one of a low-voltage direct-current converter (DCL) module, a high-voltage direct-current converter (DCH) module and a power distribution unit (PDU) module. The PDU module is respectively connected to the bidirectional OBC module and the DCF module; the DCL module is used for converting a first direct current in a power battery from a first voltage to a second voltage to obtain a second direct current, so that the second direct current is used for supplying power to a first power utilization module, wherein the first voltage is larger than the second voltage; and the DCH module is used for converting the first direct current in the power battery from the first voltage to a third voltage to obtain a third direct current, so that the third direct current is used for supplying power to a second power utilization module, wherein the first voltage is smaller than the third voltage. The apparatus can improve use efficiency.
H02J 7/00 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries
B60L 15/00 - Procédés, circuits ou dispositifs pour commander la propulsion des véhicules à traction électrique, p. ex. commande de la vitesse des moteurs de traction en vue de réaliser des performances désiréesAdaptation sur les véhicules à traction électrique de l'installation de commande à distance à partir d'un endroit fixe, de différents endroits du véhicule ou de différents véhicules d'un même train
53.
THREE-PHASE CHARGING AND SINGLE-PHASE CHARGING MUTUAL SWITCHING CIRCUIT AND RELATED DEVICE
Provided in the embodiments of the present application are a three-phase charging and single-phase charging mutual switching circuit and a related device. The three-phase charging and single-phase charging mutual switching circuit comprises an alternating-current input end, a single-pole double-throw switch, a first bridge arm, a second bridge arm, a third bridge arm, and a charging circuit. The alternating-current input end comprises a first interface, a second interface, a third interface, and a fourth interface. The first bridge arm, the second bridge arm, and the third bridge arm are connected in parallel to each other. The first bridge arm, the second bridge arm, and the third bridge arm respectively are connected to the charging circuit. The first interface is connected to the first bridge arm. The second interface is connected to the second bridge arm. The third interface is connected to the third bridge arm via a normally closed contact of the single-pole double-throw switch. The fourth interface is connected to the third bridge arm via a normally open contact of the single-pole double-throw switch. Only one circuit is required to implement compatibility with three-phase voltage charging and single-phase voltage charging functions.
H02J 7/10 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant uniquement des dispositifs à semi-conducteurs
H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
A pre-charging circuit. The pre-charging circuit comprises a power supply switch (11), a drive switching circuit (14), a switching circuit (12), an input power source (10), an internal circuit (13) and a charging circuit (15), wherein a first output end of the input power source is connected to a first end of the power supply switch; a second end of the power supply switch is respectively connected to a first end of the switching circuit and a first end of the internal circuit; a second end of the switching circuit is respectively connected to a second end of the input power source and a first end of the drive switching circuit; a third end of the switching circuit is connected to a second end of the drive switching circuit; a third end of the drive switching circuit is respectively connected to a second end of the internal circuit and a first end of the charging circuit; a fourth end of the drive switching circuit is connected to a second end of the charging circuit; a third end of the charging circuit is connected to a second end of the input power source; and the input power source is used for charging the internal circuit by means of the power supply switch and the charging circuit when the power supply switch is closed. The pre-charging circuit can avoid a current impact brought about when a device is connected to a high-voltage system.
Disclosed by the present application is a bidirectional vehicle-mounted charger, comprising: a first AC port, a second AC port, a DC port, and a switch circuit, wherein when an electric vehicle is in a driving state, the bidirectional vehicle-mounted charger is used to receive electric energy of a power battery by means of the DC port, and is used to control, by means of the switch circuit, a second discharge port connected to the second AC port to transmit the electric energy of the power battery to an external load; and when the electric vehicle is in a parked state, the bidirectional vehicle-mounted charger is used to receive the electric energy of the power battery by means of the DC port, and is used to control, by means of the switch circuit, the second discharge port connected to the second AC port and/or the first discharge port connected to the first AC port to transmit the electric energy of the power battery to the external load. The technical problem is solved in which a bidirectional vehicle-mounted charger cannot provide energy for an external load during the driving process of an electric automobile.
An isolation circuit comprises a voltage sampling circuit (10), an input power supply (11), a control circuit (12), a relay circuit (13), an internal circuit (14), and a control center (17). An output terminal of the input power supply (11) is connected to an input terminal of the voltage sampling circuit (10) and a first terminal of the relay circuit (13). A second terminal of the relay circuit (13) is connected to an output terminal of the control circuit (12). A third terminal of the relay circuit (13) is connected to the internal circuit (14). A first terminal of the control center (17) is connected to the input terminal of the voltage sampling circuit (10). A second terminal of the control center (17) is connected to an input terminal of the control circuit (12). The voltage sampling circuit (10) transmits a sampled output voltage of the input power supply (11) to the control center (17). If the control center (17) determines that the output voltage is not within a preset range, the control center (17) sends a control instruction to the control circuit (12), wherein the control instruction is used to instruct the control circuit (12) to control the relay circuit (13) to be off, such that the input power supply (11) is isolated from the internal circuit (14). In this way, the invention provides protection to elements within a switching power supply while ensuring the quality of a power grid.
Disclosed in embodiments of the present application are an integrated control device and a new energy vehicle. The device comprises an integrated control circuit, an on-board charger power electronic conversion circuit, an on-board DC/DC converter power electronic conversion circuit, and an on-board heater main circuit. The integrated control circuit is used to control the on-board charger power electronic conversion circuit to receive power from an external power grid, and convert the power from the external power grid into high-voltage DC power for inputting to a power battery. The integrated control circuit is also used to control the on-board DC/DC converter power electronic conversion circuit to receive the high-voltage DC power of the power battery, and converts the high-voltage DC power of the power battery into low-voltage DC power for inputting to a low-voltage battery. The integrated control circuit is also used to control an on-board heater power electronic conversion circuit in the on-board heater main circuit to receive the high-voltage DC power of the power battery, and convert the high-voltage DC of the power battery into heat energy by means of one or more heating elements. The present application further integrates the control circuit, reduces related components and effectively lowers costs.
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquementContrôle des paramètres de fonctionnement, p. ex. de la vitesse, de la décélération ou de la consommation d’énergie
58.
DIGITAL SIGNAL PROCESSING-BASED PULSE WIDTH MODULATION PORT MULTIPLEXING CIRCUIT AND APPARATUS
Disclosed in embodiments of the present application are a digital signal processing-based pulse width modulation port multiplexing circuit and apparatus. The circuit comprises: a control unit and a pulse width modulation port multiplexing circuit; a power supply end of the control unit is connected to a power source; a grounding end of the control unit is connected to the ground line; a first output port of the control unit is connected to a first input port of the pulse width modulation port multiplexing circuit; a second output port of the control unit is connected to a second input port of the pulse width modulation port multiplexing circuit. By implementing the embodiments of the present application, a pulse width modulation port of the circuit in a forward operating state can be used as a pulse width modulation port required by the circuit in a reverse operating state, thereby effectively solving the problem that the pulse width modulation ports of digital signal processing in bidirectional operation of the power source are not enough, reducing discrete components, simplifying the circuit, and being easy to promote.
A high-voltage power distribution module and a high-voltage power distribution assembly. The high-voltage power distribution module comprises a housing, and a first relay, a second relay, a first copper busbar, a second copper busbar, and a plurality of tube fuses which are disposed on the housing; the first relay and the second relay are each provided with a voltage input port; the voltage input port is used for inputting an electrical signal; the first relay is connected to the first copper busbar; one end of each of the plurality of tube fuses is connected to the first copper busbar, and the other ends of the tube fuses are connected to the housing to form a plurality of first connection points; one end of the second copper busbar is connected to the second relay, and the other end of the second copper busbar is connected to the housing to a plurality of second connection points; the first connection points and the second connection points are used for outputting an electrical signal. By integrating the first relay, the second relay, the plurality of tube fuses, the first copper busbar and the second copper busbar into an independent high-voltage power distribution module, the high-voltage power distribution module is assembled in advance before the overall assembling of a complete machine, and thus, the overall assembling process of the product is simplified, and the overall assembling efficiency is improved.
H02B 1/26 - EnveloppesLeurs parties constitutives ou accessoires à cet effet
H02B 1/20 - Schémas de barres omnibus ou d'autres fileries, p. ex. dans des armoires, dans les stations de commutation
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquementContrôle des paramètres de fonctionnement, p. ex. de la vitesse, de la décélération ou de la consommation d’énergie
B60R 16/023 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques pour la transmission de signaux entre des parties ou des sous-systèmes du véhicule
B60R 16/02 - Circuits électriques ou circuits de fluides spécialement adaptés aux véhicules et non prévus ailleursAgencement des éléments des circuits électriques ou des circuits de fluides spécialement adapté aux véhicules et non prévu ailleurs électriques
60.
NEW ENERGY VEHICLE AND HIGH-VOLTAGE ELECTRIC CONTROL ASSEMBLY THEREOF
A new energy vehicle and a high-voltage electric control assembly thereof. The high-voltage electric control assembly comprises an on-board charger (301), a DC converter (302), and an on-board heater (303); the on-board charger (301) comprises a first main loop (3011) and a first control loop (3012); the DC converter (302) comprises a second main loop (3021) and a second control loop (3022); the on-board heater (303) comprises a third main loop (3031) and a third control loop (3032); and any one of the first main loop (3011) and the second main loop (3021) is integrated with the third main loop (3031) as a common integrated conversion loop (502). According to the high-voltage electric control assembly, the first main loop (3011) of the on-board charger (301) or the second main loop (3021) of the DC converter (302) is integrated with the third main loop (3031) of the on-board heater (303) as the common integrated conversion loop (502), so that a large amount of electric and electronic parts are saved while the original function can be achieved, thereby reducing the manufacturing cost, optimizing the spatial arrangement, and reducing the weight of the whole vehicle.
A vehicle-mounted DC/DC bond strap detection circuit. The circuit comprises a DSP controller (201), a detection circuit (202), a vehicle-mounted DC/DC converter standby circuit (203), and a vehicle-mounted DC/DC converter power supply negative line (204), and the detection circuit (202) comprises a comparator, a first conductive branch, a second conductive branch, and a third conductive branch. Thus, the detection circuit (202) is connected between the DSP controller (201) and the vehicle-mounted DC/DC converter standby circuit (203) and between the DSP controller (201) and the vehicle-mounted DC/DC converter power supply negative line (204), and once hundreds of amperes of current is generated because a bond strap of a DC/DC converter (102) is in poor contact or even disconnected with a vehicle body or a bond strap of a low-voltage storage battery (104) is in poor contact or even disconnected, the detection circuit (202) can detect that a large current flows through the power supply negative line of the vehicle-mounted DC/DC converter (102) or a large current flows through a shielding line due to disconnection or poor contact of the bond strap of the DC/DC converter (102), thereby avoiding the situation that a wire harness is burnt out due to continuous output of the large current.
B60L 3/00 - Dispositifs électriques de sécurité sur véhicules propulsés électriquementContrôle des paramètres de fonctionnement, p. ex. de la vitesse, de la décélération ou de la consommation d’énergie
62.
THREE-PHASE THREE-WIRE SYSTEM CURRENT SAMPLING CIRCUIT AND METHOD
Disclosed are a three-phase three-wire system current sampling circuit and method. The three-phase three-wire system circuit comprises a first sampling resistor, a first current sampling circuit, a second sampling resistor, a second current sampling circuit, a third current sampling circuit, and a processing chip, wherein the first sampling resistor is connected in series in a first wire, and an input end of the first current sampling circuit is connected to the first sampling resistor; the second sampling resistor is connected in series in a second wire, and an input end of the second current sampling circuit is connected to the second sampling resistor; the third current sampling circuit comprises an operational circuit, with the input end of the operational circuit respectively being connected to the first current sampling circuit and the second current sampling circuit; and output ends of the first current sampling circuit, the second current sampling circuit and the third current sampling circuit are connected to the processing chip. On the basis of the three-phase three-wire system current sampling circuit, further provided is the three-phase three-wire system current sampling method. By implementing the present application, the response time for current sampling is short, and the production costs are low.
Disclosed in the present application are a transformer and a manufacturing method for a transformer, the transformer is placed within a recess made in a metal outer casing, and the metal outer casing is connected to ground; the transformer comprises a transforming circuit and a rectifying circuit; an input terminal of the transforming circuit is connected to a power source, a first output terminal of the transforming circuit is connected to an input terminal of the rectifying circuit, and a second output terminal of the transforming circuit is electrically connected to the metal outer casing; the transforming circuit is used for transmitting an output current of the power source to the rectifying circuit; a first output terminal of the rectifying circuit is connected to a low voltage battery, and a second output terminal of the rectifying circuit is electrically connected to the metal outer casing; the rectifying circuit is used for performing rectification and filtering on the output current of the transforming circuit, so as to transmit, by means of the first output terminal of the rectifying circuit, the output current to the low voltage battery to perform charging. Implementing an embodiment of the present application reduces circuit complexity.
A transformer, a transformation apparatus and a transformation method. The transformer (100) is placed in a recess made of a metal housing (104), and the metal housing (104) is grounded; the transformer (100) comprises a transformation circuit (101), which comprises a transformer magnetic core; an input end of the transformation circuit (101) is connected to a power supply (102), and an output end of the transformation circuit (101) is connected to a low-voltage battery (103); and the transformer magnetic core is connected to a metal conductor, the metal housing (104) is connected to the metal conductor, and the metal conductor is used for conducting coupling voltage generated by the transformer magnetic core to the metal housing (104). The technical solution solves the problem of arc discharge between the magnetic core of a transformer and a metal housing, thus optimizing the performance of an on-board charger.
H01F 27/34 - Moyens particuliers pour éviter ou réduire les effets électriques ou magnétiques indésirables, p. ex. pertes à vide, courants réactifs, harmoniques, oscillations, champs de fuite
65.
MAGNETIC ELEMENT ADAPTER APPARATUS AND ELECTRIC VEHICLE
Provided are a magnetic element adapter apparatus and an electric vehicle. The magnetic element adapter apparatus (10) comprises a magnetic element (101), a transfer circuit board (102) and a main power circuit board (103). The magnetic element comprises M pins, M being an integer greater than zero; the transfer circuit board comprises N electrical connectors, N being an integer greater than zero and less than M; the magnetic element is electrically connected to the N electrical connectors of the transfer circuit board by means of the M pins, wherein each electrical connector is electrically connected to one or more pins, and each pin is connected to one electrical connector; and the main power circuit board is electrically connected to the transfer circuit board by means of the N electrical connectors. The magnetic element is adapted onto the main power circuit board by means of the transfer circuit board, such that the problems in the prior art of there being a large pin tolerance during the process of a magnetic element being directly connected to a main power circuit board, the two being inconvenient to mount to each other, etc. are solved.
A discharge control circuit, a switching power supply, and a discharge control device. The discharge control circuit comprises: a control circuit (101), a photoelectric coupler (102), and a discharge circuit (103), wherein the photoelectric coupler (102) comprises an input end and an output end; the discharge circuit (103) comprises a first discharge circuit (104) and a second discharge circuit (105); an input end of the control circuit (101) is an external input voltage; the control circuit (101) is used for controlling an output duration and an output interval duration of an output voltage according to the external input voltage; the input end of the photoelectric coupler (102) is connected to an output end of the control circuit (101); the output end of the photoelectric coupler (102) is connected to the first discharge circuit (104); the first discharge circuit (104) is connected to the second discharge circuit (105). The discharge circuit has the advantages of stability, reliability and high safety.
Disclosed in the present application are a circuit and method for controlling low power consumption of a relay, being applied to a vehicle-mounted power supply. The circuit for controlling the low power consumption of the relay comprises a first electronic switch, a second electronic switch, a first resistor, a relay, a first switch control module, and a second switch control module. The first end of the first electronic switch is separately connected to the first end of the first resistor and a power supply, and the second end of the first electronic switch is separately connected to the second end of the first resistor and the first end of the coil of the relay; the first end of the second electronic switch is connected to the second end of the coil of the relay, and the second end of the second electronic switch is grounded; and the first switch control module is used for controlling the on-off state of the first electronic switch, and the second switch control module is used for controlling the on-off state of the second electronic switch. By controlling the on-off states of the electronic switches by means of the first switch control module and the second switch control module, the simplicity of controlling the low power consumption of the relay is achieved, and the reliability of a low power-consumption relay circuit is also improved.
A pulse width modulation control circuit, a switching power supply, and a pulse width modulation control device. The pulse width modulation control circuit comprises: a voltage control circuit, a transformer and a rectification circuit, wherein the voltage control circuit comprises a first field-effect transistor (Q1) and a second field-effect transistor (Q2); a gate electrode of the first field-effect transistor is connected to a first driving signal; a gate electrode of the second field-effect transistor is connected to a second driving signal; the frequencies of the first driving signal and the second driving signal are the same and are preset fixed frequencies; and duty cycles of the first driving signal and the second driving signal are the same and are preset fixed duty cycles. The circuit has a simplified control means, and can set, insofar as stable circuit output is ensured, the frequencies and the duty cycles of the first field-effect transistor and the second field-effect transistor as appropriate fixed frequencies and fixed duty cycles, thereby improving the efficiency of the entire machine in terms of circuit control.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
An embodiment of the present application discloses a rectifier drive circuit. The rectifier drive circuit comprises a pre-charging circuit, a silicon controlled rectifier circuit, a rectifier circuit, an electrolytic capacitor, and a silicon controlled rectifier trigger circuit. The rectifier drive circuit has a single-phase alternating current input. The pre-charging circuit is connected in series between a live wire of an input terminal of the rectifier drive circuit and a high-voltage direct current positive output terminal. A neutral wire of the input terminal of the rectifier drive circuit is connected to the rectifier circuit. The silicon controlled rectifier circuit, the rectifier circuit, and the electrolytic capacitor are connected in parallel between the high-voltage direct current positive output terminal and a high-voltage direct current negative output terminal. The silicon controlled rectifier trigger circuit is connected to the silicon controlled rectifier circuit. The pre-charging circuit is used to charge the electrolytic capacitor. The silicon controlled rectifier trigger circuit is used to trigger the silicon controlled rectifier circuit, and the silicon controlled rectifier circuit is used to charge the electrolytic capacitor. The silicon controlled rectifier circuit and the rectifier circuit are used to rectify the single-phase alternating current input. The embodiment of the present application avoids performance restrictions from mechanical devices in the prior art, and effectively achieves pre-charging and rectification at an alternating current input side.
Disclosed is a gate drive circuit, comprising: a rectification circuit, an energy supply circuit, an amplification circuit, a resistor, a MOS transistor and a transformer, wherein a first end of the transformer is connected to a first end of the amplification circuit and a first end of the rectification circuit; a second end of the transformer is connected to a source electrode of the MOS transistor and a second end of the energy supply circuit; a second end of the rectification circuit is connected to a first end of the energy supply circuit and a second end of the amplification circuit; a third end of the amplification circuit is connected to a first end of the resistor; a second end of the resistor is connected to a gate electrode of the MOS transistor; a drain electrode of the MOS transistor is connected to an external circuit; the transformer is used for generating a drive signal; the rectification circuit is used for controlling the energy supply circuit to perform charging; the amplification circuit is used for amplifying a signal output by the energy supply circuit and the drive signal generated by the transformer; and a signal output by the amplification circuit is used for driving the MOS transistor. The implementation of the embodiments of the present application can effectively enhance the drive capability supplied by a transformer to a gate drive circuit of a MOSFET.
H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
71.
SINGLE-PHASE ADAPTIVE PHASE-LOCKED APPARATUS AND METHOD
Disclosed are a single-phase adaptive phase-locked apparatus and method. The single-phase adaptive phase-locked apparatus comprises: a phase detector, a proportional-integral controller, a dynamic wave trap, and a voltage-controlled oscillator, wherein the phase detector is used to obtain a phase error signal according to a single-phase grid voltage signal, and a first output voltage signal from the voltage-controlled oscillator; the proportional-integral controller is used to perform proportional-integral adjustment on the phase error signal, so as to filter out a noise component and a high-frequency component in the phase error signal to generate a first phase deviation signal; the dynamic wave trap is used to perform wave trap processing on the first phase deviation signal, so as to filter out a high-frequency component of a first phase deviation to obtain a second phase deviation signal; and the voltage-controlled oscillator is used to adjust the first output voltage signal to a second output voltage signal according to the second phase deviation signal. The embodiments of the present application can effectively eliminate a high-frequency component in an output signal from a single-phase phase-locked loop, and also take into account the dynamic response and steady-state performance of the single-phase phase-locked loop.
Disclosed is a drive module of a resonant circuit LLC. The drive module comprises: a periodic signal input port, a dead zone signal input port, a signal delay input port, a signal processing module, and eight drive signal output ports. The eight drive signal output ports comprise four primary output ports and four secondary output ports; the signal processing module is used for processing a periodic signal and a dead zone signal to generate four primary switch transistor drive signals, and outputting same by means of the four primary output ports, and is further used for processing the periodic signal, the dead zone signal, and a phase difference signal to generate four secondary switch transistor drive signals, and outputting same by means of the four secondary output ports. The implementation of embodiments of the present application can broaden the application range of MATLAB in the field of simulation.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
73.
CHARGING AND DISCHARGING CIRCUIT, VEHICLE-MOUNTED CHARGING AND DISCHARGING SYSTEM, AND CHARGING AND DISCHARGING METHOD
Disclosed are a charging and discharging circuit, a vehicle-mounted charging and discharging system, and a charging and discharging method. The charging and discharging circuit comprises a rectifier circuit module, a voltage-regulating circuit module, a first battery pack, a second battery pack, a first switch, a second switch, a vehicle control unit, and a load, wherein the rectifier circuit module is connected in series to the voltage-regulating circuit module, the voltage-regulating circuit module is connected to the first battery pack, the first battery pack is connected to the load, the second battery pack is connected to the load and one end of the voltage-regulating circuit module by means of the second switch, the second battery pack is connected to the other end of the voltage-regulating circuit module by means of the first switch, and the voltage-regulating circuit module, the first battery pack, the first switch, the second switch and the second battery pack are all connected to the vehicle control unit. According to the embodiments of the present application, multiple battery packs are used in the charging and discharging circuit so as to realize the mixed use of different battery packs, so that a vehicle can obtain more power, thereby increasing the cruising range, facilitating the long-distance driving of a user, and bringing convenience to a user.
An embodiment of the present application discloses a bridge type silicon carbide field effect transistor driving circuit, wherein the circuit comprises a first silicon carbide field effect transistor circuit, a second silicon carbide field effect transistor circuit, a first driving module, a second driving module, a driving chip and a weak level control module; the first silicon carbide field effect transistor circuit is electrically connected with the first driving module, the driving chip and the second silicon carbide field effect transistor circuit respectively, the second silicon carbide field effect transistor circuit is electrically connected with the second driving module and the driving chip respectively, and the driving chip is electrically connected with the weak level control module. The embodiment of the present application can realize a fast turn-off of the silicon carbide field effect transistor without needing a complex negative voltage driving circuit, thereby reducing the complexity of the circuit, and improving the applicability of the circuit.
H02M 1/08 - Circuits spécialement adaptés à la production d'une tension de commande pour les dispositifs à semi-conducteurs incorporés dans des convertisseurs statiques
75.
THREE-PHASE CHARGING CIRCUIT COMPATIBLE WITH SINGLE-PHASE INPUT, AND RELATED DEVICE
The present application discloses a three-phase input charging circuit compatible with single-phase input and a related device. The circuit comprises: a first input circuit, a second input circuit and a third input circuit, the first input circuit, the second input circuit, and the third input circuit being connected in parallel, and the first input circuit, the second input circuit, and the third input circuit being connected to the same neutral wire. By implementing the embodiments of the present application, output power of a circuit can be improved, and the embodiments of the present application have the advantage of good user experience.
H02J 7/02 - Circuits pour la charge ou la dépolarisation des batteries ou pour alimenter des charges par des batteries pour la charge des batteries par réseaux à courant alternatif au moyen de convertisseurs
76.
INSULATION DETECTION CIRCUIT, MAINBOARD, AND RELATED DEVICE
Disclosed in the present application is an insulation detection circuit, comprising an alternating current power supply, a filter circuit, and a detection circuit. The detection circuit comprises a first sub-detection circuit and a second sub-detection circuit; the alternating current power supply is connected to the filter circuit; the filter circuit is connected to the first sub-detection circuit and the second sub-detection circuit; an alternating current signal generated by the alternating current power supply passes through the filter circuit to generate a first current signal; the first current signal flows to the first sub-detection circuit and the second sub-detection circuit, a first voltage is generated at the first sub-detection circuit, and a second voltage is generated at the second sub-detection circuit. Embodiments of the present application can simplify design of an insulation detection circuit.
The present application discloses an electric separation circuit of a charge/discharge interface, comprising a charge interface ACL1, a charge interface ACN1, a discharge interface ACL2, a discharge interface ACN2, and a power supply interface, and further comprising a digital signal processor, a first relay K1, a second relay K2, and a switch control module, the first relay K1 and the second relay K2 both being single-pole double-throw relays. The digital signal processor is connected to an input end of the switch control module; an input end of the first relay K1 and an input end of the second relay K2 are both connected to an output end of the switch control module; a first contact pin of the first relay K1 is connected to the charge interface ACL1; a second contact pin of the first relay K1 is connected to the discharge interface ACL2; and a public connection end of the first relay K1 is connected to the power supply interface. Using the foregoing means, the following are achieved: the discharge interface is not turned on during charging and the charge interface is not turned on during discharging, thereby ensuring the separation and independence of charge and discharge, and improving the safety of charge and discharge.
SS is used to evenly divide a high-voltage signal for inputting into the first sub-input circuit and the second sub-input circuit; on the basis of the inputted high-voltage signals, the first sub-input circuit and the second sub-input circuit respectively produce a first electrical signal and a second electrical signal, the first electrical signal and the second electrical signal having the same magnitude; the first electrical signal and the second electrical signal produce a first magnetic flux and a second magnetic flux in the magnetic element respectively, the first magnetic flux and the second magnetic flux having the same magnitude and direction; a third magnetic flux superimposed by the first magnetic flux and the second magnetic flux produces an induced electromotive force by means of a secondary winding of the magnetic element, and the induced electromotive force generates a low-voltage signal by means of the output circuit. By using the embodiments of the present application, the adaptation range of an input voltage of a circuit can be improved.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
79.
VOLTAGE CONVERSION CIRCUIT FOR INTEGRATED VEHICLE-MOUNTED CHARGER
Disclosed is a voltage conversion circuit for an integrated vehicle-mounted charger. The voltage conversion circuit for an integrated vehicle-mounted charger comprises an input circuit, a transformer and an output circuit, wherein the input circuit comprises a first input sub-circuit and a second input sub-circuit; the transformer comprises a first primary winding, a second primary winding and a secondary winding; the input circuit is connected to the transformer; the transformer is connected to the output circuit; the first input sub-circuit and the second input sub-circuit are connected in series; the first input sub-circuit is connected to a first port and a second port of the first primary winding; the second input sub-circuit is connected to a first port and a second port of the second primary winding; and the secondary winding is connected to the output circuit. The embodiments of the present application can enlarge the adaptation range of an input voltage of a circuit, and meets the requirements of a low-voltage and high-current output.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
80.
ACTIVE CLAMP FORWARD AND FLYBACK COMBINED CIRCUIT OF INTEGRATED VEHICLE-MOUNTED CHARGER
Disclosed is an active clamp forward and flyback combined circuit of an integrated vehicle-mounted charger; a first primary circuit is connected in series to a second primary circuit, and the first primary circuit is connected to a first primary winding; a second primary circuit is connected to a second primary winding, and the first primary winding is connected in series to a second primary winding; a secondary winding is connected to a secondary rectifier circuit. The embodiments of the present invention can increase the adaptation range of the input voltage of the circuit.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
81.
VOLTAGE CONVERSION CIRCUIT OF INTEGRATED VEHICLE-MOUNTED CHARGER
Disclosed by the present application is a voltage conversion circuit of an integrated vehicle-mounted charger, comprising an input circuit, a transformer and an output circuit; the input circuit comprises a first sub-input circuit and a second sub-input circuit; the transformer comprises a first primary winding, a second primary winding and a secondary winding; the input circuit is connected to the transformer, the transformer is connected to the output circuit, the first sub-input circuit is in series connection with the second sub-input circuit, the first-sub input circuit is connected to a first port and second port of the first primary winding, the second sub-input circuit is connected to a first port and second port of the second primary winding, and the secondary winding is connected to the output circuit. According to the embodiments of the present application, the range of adaptation of the input voltage of a circuit may be improved, and the requirements of low voltage and large current output are met.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
B60L 53/20 - Procédés de chargement de batteries spécialement adaptées aux véhicules électriquesStations de charge ou équipements de charge embarqués pour ces batteriesÉchange d'éléments d’emmagasinage d'énergie dans les véhicules électriques caractérisés par des convertisseurs situés dans le véhicule
82.
VOLTAGE CONVERSION CIRCUIT OF INTEGRATED VEHICLE-MOUNTED CHARGER
Disclosed by the embodiments of the present application are a voltage conversion circuit of an integrated vehicle-mounted charger; an input circuit is connected to a first end of a magnetic element, and the second end of the magnetic element is connected to an output circuit; a first sub-input circuit is connected in series to a second sub-input circuit, the first sub-input circuit is respectively connected to a first port and a second port of the primary winding of the magnetic element, and the second sub-input circuit is respectively connected to a third port and a fourth port of the primary winding of the magnetic element; the first and second sub-input circuits generate first and second voltage signals, respectively, on the basis of an input high-voltage signal; first and second voltage signals generate first and second magnetic fluxes, respectively, in the same direction in the magnetic element; a third magnetic flux superimposed by the first and second magnetic fluxes generates induced electromotive force by means of the secondary winding of the magnetic element; the induced electromotive force generates a low-voltage signal by means of the output circuit. Using the embodiments of the present application can increase the adaptation range of the input voltage of the circuit.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
83.
SWITCH POWER SOURCE CIRCUIT FOR INTEGRATED VEHICLE-MOUNTED CHARGER, AND CONVERTER
Disclosed are a switch power source circuit for an integrated vehicle-mounted charger, and a converter. The circuit comprises an input circuit, a transformer, and a secondary circuit, wherein the input circuit comprises a first winding input circuit and a second winding input circuit; the transformer comprises a first primary winding, a second primary winding, a secondary winding, and an iron core; the first winding input circuit is connected to the first primary winding; the second winding input circuit is connected to the second primary winding; the secondary winding is connected to the secondary circuit; the first winding input circuit and the second winding input circuit are connected in series; a high-voltage signal generates a first electrical signal and a second electrical signal by means of the first winding input circuit and the second winding input circuit; the first electrical signal and the second electrical signal generate a first magnetic flux and a second magnetic flux by means of the first primary winding and the second primary winding; and the first magnetic flux and the second magnetic flux are superposed to generate a third magnetic flux and then generate a low-voltage signal by means of the secondary winding. The present application can enlarge the adaptation range of an input voltage of a circuit.
H02J 7/10 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant uniquement des dispositifs à semi-conducteurs
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
84.
PHASE SEQUENCE DETECTION METHOD FOR THREE-PHASE POWER GRID, AND RELATED APPARATUS
Disclosed is a phase sequence detection method for a three-phase power grid. The method comprises: acquiring, by means of a voltage sensor, a line voltage of a three-phase power grid, and determining a phase voltage of the three-phase power grid according to the line voltage; determining a first output value and/or a second output value according to the phase voltage; determining a phase sequence state of the three-phase power grid according to the first output value and/or the second output value; and updating, according to the phase sequence state, the numerical value of a phase sequence mark currently stored in a detection control device. According to the embodiments of the present application, the method can achieve phase sequence detection without the need for an additional hardware detection circuit, thereby improving the phase sequence detection speed of a three-phase alternating-current power grid, and guaranteeing the safety of an electric device accessing the three-phase alternating-current power grid.
Disclosed in the present application is a sleep circuit of a vehicle-mounted charger, which is applied to a vehicle-mounted charger control system and which comprises a first filter circuit, a second filter circuit, a signal input circuit, a resistance detection circuit, and an intermediate circuit: the first filter circuit and the intermediate circuit are connected; the intermediate circuit and the second filter circuit are connected; and the intermediate circuit comprises a first conducting branch, a second conducting branch, a third conducting branch, a fourth conducting branch, a first port, a second port, a third port, and a signal access port. The second port is grounded, one end of the signal input circuit is connected to the intermediate circuit by means of the signal access port, the other end of the signal input circuit is grounded, one end of the resistance detection circuit is connected to the signal input circuit by means of the signal access port, and the other end of the resistance detection circuit is connected to the first port. The present application integrates a vehicle control device in a vehicle-mounted charger input control and guidance circuit into a vehicle-mounted charger control system, which lowers the overall costs and strengthens reliability.
The present application discloses an over-voltage protection control circuit, characterized in that the over-voltage protection circuit comprises a detection circuit, an input circuit, a transformer, and an output circuit, the transformer comprising a primary winding, a first secondary winding, a second secondary winding, and an iron core, the output circuit comprising a first winding output circuit and a second winding output circuit; the first secondary winding is connected to the first winding output circuit, the second secondary winding is connected to the second winding output circuit, the primary winding is connected to the input circuit, and the first winding output circuit and the second winding output circuit are connected in parallel. The over-voltage protection control circuit provided in the present application has the advantages of improving the safety and reliability of a circuit.
H02M 7/06 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge sans électrode de commande ou des dispositifs à semi-conducteurs sans éléctrode de commande
H02H 9/04 - Circuits de protection de sécurité pour limiter l'excès de courant ou de tension sans déconnexion sensibles à un excès de tension
87.
ANTI-BACKFLOW CIRCUIT, POWER SUPPLY AND ANTI-BACKFLOW METHOD
The embodiments of the present application provide an anti-backflow circuit, comprising a first power supply port, a second power supply port, a first MOS transistor, a voltage stabilizing module and a comparison module; the comparison module comprises a first input end, a second input end, and an output end, a source electrode of the first MOS transistor is connected to the first power supply port, a drain electrode of the first MOS transistor is connected to the second power supply port, a gate electrode of the first MOS transistor is connected to the output end of the comparison module, the first input end of the comparison module is connected to the first power supply port, and the second input end of the comparison module is connected to the second power supply port. The anti-backflow circuit provided in the present solution can achieve low circuit loss and low costs, while ensuring that multiple power supply modules in a redundant power supply are used in parallel; when an output short-circuit fault occurs in some of the power supply modules, other modules are not influenced, and can still work normally, thereby ensuring normal operation of a system device.
The present application discloses a vehicle-mounted battery charger and a manufacturing method therefor as well as a vehicle-mounted battery charger system, comprising a control circuit, an alternating current charging processing circuit and a charging switch protection circuit. The control circuit is connected with the alternating current charging processing circuit and the charging switch protection circuit, and the alternating current charging processing circuit is connected with the charging switch protection circuit. According to the embodiment of the present application, the direct current charging function and the alternating current charging function are integrated in a vehicle-mounted battery charger so as to make the vehicle-mounted battery charger a control and switching center for the battery and external energy, thereby liberating the battery management system (BMS) and optimizing the local network structure and direct current power path of the vehicle control unit.
Disclosed are a barcode detection device and method. The device comprises a first code reading apparatus, a second code reading apparatus and a processor, wherein the processor is connected to the first code reading apparatus and the second code reading apparatus by means of a circuit, a scanner of the first code reading apparatus is configured to face a first direction, a scanner of the second code reading apparatus is configured to face a second direction, and the first direction is opposite the second direction; and there is a vacant space between the scanner of the first code reading apparatus and the scanner of the second code reading apparatus. The barcode detection device can acquire barcode information from the surfaces, in two different directions, of a scanned object, thereby expanding the scanning range of the device for barcodes, and improving the traceability of the device.
G06K 7/10 - Méthodes ou dispositions pour la lecture de supports d'enregistrement par radiation électromagnétique, p. ex. lecture optiqueMéthodes ou dispositions pour la lecture de supports d'enregistrement par radiation corpusculaire
90.
ACTIVE CLAMP CIRCUIT, FABRICATION METHOD THEREFOR AND ACTIVE CLAMP SYSTEM
Disclosed in the present application are an active clamp circuit, an active clamp circuit system and a fabrication method for an active clamp circuit. The active clamp circuit comprises: an input circuit, a transformer and an output circuit; the input circuit comprises a clamp circuit module and a discharge circuit module; the clamp circuit module comprises a second capacitor and a second switch transistor, wherein the second capacitor is a clamp circuit and the second switch transistor is a clamp switch transistor; the input circuit is externally connected to an input power supply; the clamp capacitor and the discharge circuit module are connected in parallel; the input circuit is connected to the output circuit by means of the transformer; and the output circuit is connected to a load. In the embodiments of the present application, the clamp capacitor in the active clamp circuit is connected in parallel to the discharge circuit module, thereby preventing voltage peak energy on the clamp capacitor from damaging the clamp switch transistor, and solving the problem of the impact of a surge on the clamp switch transistor.
H02M 3/335 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu avec transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrodes de commande pour produire le courant alternatif intermédiaire utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs
91.
METHOD FOR ADJUSTING BUS VOLTAGE, AND RELATED DEVICE
A method for adjusting a bus voltage, and a related device. The method comprises: firstly, acquiring a first reference amplitude value of a photovoltaic input voltage and an actual amplitude value of a bus voltage in a photovoltaic energy storage system (S201); and then, adjusting the bus voltage according to the first reference amplitude value and the actual amplitude value (S202). The method and device above can be used to realize the dynamic adjustment of the bus voltage, widen the adjustment range of the photovoltaic input voltage, and avoid the negative effects caused by the high voltage loss and high voltage and high temperature on the bus.
The embodiment of the present application discloses a method, device and system for output power adjustment as well as a storage medium. The method comprises the following steps: when the output power supplied to a load by a first inverter is detected to be greater than a rated power or the ratio between the output power and the rated power is detected to be less than a preset threshold, adjusting a first power weight coefficient of the output power in the total power of the load; obtaining first power information of the first inverter and receiving second power information and a second power weight coefficient sent by at least one second inverter supplying power to the load; and adjusting the output power according to the adjusted first power weight coefficient, the second power weight coefficient, the first power information and the second power information. The embodiment of the present application can improve the flexibility of power allocation and the stability of an inverter parallel system.
H02J 3/46 - Dispositions pour l’alimentation en parallèle d’un seul réseau, par plusieurs générateurs, convertisseurs ou transformateurs contrôlant la répartition de puissance entre les générateurs, convertisseurs ou transformateurs
A vehicle charging system, comprising a switch apparatus (30), a first direct-current battery (10), and a second direct-current battery (20). In the case that a supply voltage of a charging device is greater than or equal to a first voltage and less than a second voltage, the switch apparatus (30) controls the first direct-current battery to be connected in parallel to the second direct-current battery to implement low-voltage charging. Also disclosed is a vehicle comprising the charging system. The charging system improves the universality and commonality of the charging device, and reduces the construction cost of special charging devices for vehicles.
A synchronous rectifier circuit and a rectifier device. The synchronous rectifier circuit comprises a transformer (T1), a first rectifier circuit (210), a second rectifier circuit (220), a positive power source output end (Vout+), and a negative power source output end (Vout-). The transformer (T1) comprises a primary winding (L0), a first secondary winding (L1), and a second secondary winding (L2). The first end (L11) of the first secondary winding (L1) is connected to the first input end (211) of the first rectifier circuit (210), and the second end (L12) of the first secondary winding (L1) is connected to the second input end (212) of the first rectifier circuit (210), the second input end (222) of the second rectifier circuit (220), the first end (L21) of the second secondary winding (L2), and the negative power source output end (Vout-); the second end (L22) of the second secondary winding (L2) is connected to the first input end (221) of the second rectifier circuit (220); the output end (213) of the first rectifier circuit (210) is connected to the output end (223) of the second rectifier circuit (220) and the positive power source output end (Vout+). No additional power supply winding is required to be provided to the transformer (T1), thereby reducing the processing costs of the transformer, facilitating PCB wiring, and improving the power density of a power source.
H02M 7/219 - Transformation d'une puissance d'entrée en courant alternatif en une puissance de sortie en courant continu sans possibilité de réversibilité par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs dans une configuration en pont
95.
INTEGRATED VEHICLE-MOUNTED CHARGER CIRCUIT AND MANUFACTURING METHOD THEREFORE, AND INTEGRATED VEHICLE-MOUNTED CHARGER
An integrated vehicle-mounted charger circuit. In the case that a fixed end of a control unit is connected to a first selection end, a first processing circuit is configured to transmit a first portion of the energy of the mains electricity to a power battery (600) and a second processing circuit is configured to transmit a second portion of the energy of the mains electricity to a low-voltage battery (700). In the case that the fixed end of the control unit is connected to a second selection end, a third processing circuit is configured to feed back a first portion of the energy of the power battery (600) to the power battery (600) and a fourth processing circuit is configured to transmit a second portion of the energy of the power battery (600) to the low-voltage battery (700). By transmitting the mains electricity to the power battery and the low-voltage battery, the power battery can transmit the energy to the power battery and the low-voltage battery, such that a vehicle-mounted charger satisfies different use requirements in future scenes. Also disclosed are an integrated vehicle-mounted charger comprising the integrated vehicle-mounted charger circuit and a manufacturing method for the integrated vehicle-mounted charger circuit.
Disclosed in the present application are an integrated vehicle-mounted charger circuit, a manufacturing method, and an integrated vehicle-mounted charger. The integrated vehicle-mounted charger circuit comprises a primary processing circuit, a transformer, a first secondary processing circuit, and a second secondary processing circuit, wherein the primary processing circuit is connected to a mains; the first secondary processing circuit is connected to a power battery; the second secondary processing circuit is connected to a low voltage battery; a first processing circuit formed by the primary processing circuit, the transformer, and the first secondary processing circuit is used for transmitting electrical energy of the mains to the power battery; and the first secondary processing circuit, the transformer, and the second secondary circuit form a second processing circuit for transmitting the electrical energy of the power battery to the low voltage battery. The low voltage battery is better charged by a high voltage power battery.
H02J 7/10 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant uniquement des dispositifs à semi-conducteurs
97.
INTEGRATED VEHICLE-MOUNTED CHARGER CIRCUIT AND MANUFACTURING METHOD THEREFOR, AND INTEGRATED VEHICLE-MOUNTED CHARGER
Disclosed in the present application are an integrated vehicle-mounted charger circuit and a manufacturing method therefor, and an integrated vehicle-mounted charger: when a fixed end of a control unit is connected to a first selection end, a first processing circuit is used for transmitting a first portion of energy of mains electricity to a power battery, and a second processing circuit is used for transmitting a second portion of energy of the mains electricity to a low-voltage battery; when the fixed end of the control unit is connected to a second selection end, a third processing circuit is used for feeding a first portion of energy of the power battery back to the power battery, and a fourth processing circuit is used for transmitting a second portion of energy of the power battery to the low-voltage battery. In the present application, the energy of the mains electricity is transmitted to the power battery and the low-voltage battery by means of different processing circuits, and the energy of the power battery is fed back to the power battery and is transmitted to the low-voltage battery by means of different processing circuits.
H02J 7/10 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant uniquement des dispositifs à semi-conducteurs
98.
INTEGRATED VEHICLE-MOUNTED CHARGER CIRCUIT AND MANUFACTURING METHOD THEREFOR, AND INTEGRATED VEHICLE-MOUNTED CHARGER
Disclosed are an integrated vehicle-mounted charger circuit and a manufacturing method therefor, and an integrated vehicle-mounted charger. When a controller is used for controlling connection states of a switch K1, a switch K2 and a switch K3 for performing energy transmission, the energy transmission comprises energy transmission from a mains supply to a power battery and a low-voltage battery, energy transmission from the power battery to the low-voltage battery and energy transmission from the mains supply to the low-voltage battery. The energy of the mains supply can be better transmitted to the power battery and the low-voltage battery through different processing circuits, and the energy of the power battery can be better transmitted to the low-voltage battery and fed back to the power battery through different processing circuits.
H02J 7/10 - Régulation du courant ou de la tension de charge utilisant des tubes à décharge ou des dispositifs à semi-conducteurs utilisant uniquement des dispositifs à semi-conducteurs
99.
INTEGRATED TRANSFORMER AND INTEGRATED SWITCHING POWER SUPPLY APPLICATION CIRCUIT APPLYING INTEGRATED TRANSFORMER
An integrated transformer (100) and an integrated switching power supply application circuit containing the integrated transformer, the integrated transformer comprising a closed magnetic core (10), a first winding (20), a second winding (30), a third winding (80), a fourth winding (90), a first skeleton (40), and a second skeleton (50); the closed magnetic core comprises a first magnetic post (101) and a second magnetic post (102) that are arranged in parallel opposite to each other; the first skeleton sleeves the first magnetic post, and the first winding is wound about the first skeleton, while the second skeleton sleeves the second magnetic post, and the second winding is wound about the second skeleton; the third winding is wound about the first magnetic post and is disposed at an interval from the first winding, and the fourth winding is wound about the second magnetic post and is disposed at an interval from the second winding; the first winding comprises a first primary winding (201) and a first secondary winding (202), and the second winding comprises a second primary winding (301) and a second secondary winding (302); the first primary winding is used for introducing a first current (L1), and the second primary winding is used for introducing a second current (L2), the first current and the second current being used to form a magnetic flux loop in the closed magnetic core. The described integrated transformer solves the technical problem wherein two transformers being used in parallel occupies a large space.
H01F 27/30 - Fixation ou serrage de bobines, d'enroulements ou de parties de ceux-ci entre euxFixation ou montage des bobines ou enroulements sur le noyau, dans l'enveloppe ou sur un autre support
Disclosed in the embodiments of the present application is a direct current buck-boost circuit, comprising: a control feedback module, a first drive module, a second drive module, a voltage sampling module and a buck-boost circuit module. An input end of the control feedback module is electrically connected to an output end of the voltage sampling module, a first output end of the control feedback module is connected to an input end of the first drive module, and a second output end of the control feedback module is connected to an input end of the second drive module. The boost-buck circuit module comprises a first switch and a second switch, an output end of the first drive module is connected to one end of the first switch, and an output end of the second drive module is connected to one end of the second switch. An input end of the voltage sampling module is connected to an output end of the buck-boost circuit module. The embodiments of the present application can improve the conversion speed between boost and buck, realizing seamless transition from buck to boost and boost to buck, and improving the circuit response efficiency.
H02M 3/158 - Transformation d'une puissance d'entrée en courant continu en une puissance de sortie en courant continu sans transformation intermédiaire en courant alternatif par convertisseurs statiques utilisant des tubes à décharge avec électrode de commande ou des dispositifs à semi-conducteurs avec électrode de commande utilisant des dispositifs du type triode ou transistor exigeant l'application continue d'un signal de commande utilisant uniquement des dispositifs à semi-conducteurs avec commande automatique de la tension ou du courant de sortie, p. ex. régulateurs à commutation comprenant plusieurs dispositifs à semi-conducteurs comme dispositifs de commande finale pour une charge unique
brevets
