Fluxgate current transducer including a control circuit and a fluxgate device comprising a saturable soft magnetic core surrounded by an excitation coil, the control circuit comprising an excitation coil drive circuit connected to the excitation coil configured to generate an alternating magnetic field to alternatingly saturate the soft magnetic core. The excitation coil comprises a first winding and a second winding connected together at a common point forming an input of the first winding and an output of the second winding, the first winding connected in series to a first switch (S1) and the second winding connected in series to a second switch (S2).
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
2.
FLUXGATE CURRENT TRANSDUCER WITH AN ANALOG MEASUREMENT CHANNEL
Fluxgate current transducer including a control circuit and a fluxgate device comprising a saturable soft magnetic core surrounded by an excitation coil, the control circuit comprising an excitation coil drive circuit connected to the excitation coil configured to generate an alternating magnetic field to alternatingly saturate the soft magnetic core. The excitation coil comprises a first winding and a second winding connected together at a common point forming an input of the first winding and an output of the second winding, the first winding connected in series to a first switch (S1) and the second winding connected in series to a second switch (S2).
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
3.
FLUXGATE CURRENT TRANSDUCER WITH AN ANALOG MEASUREMENT CHANNEL
Fluxgate current transducer including a control circuit and a fluxgate device comprising a saturable soft magnetic core surrounded by an excitation coil, the control circuit comprising an excitation coil drive circuit connected to the excitation coil configured to generate an alternating magnetic field to alternatingly saturate the soft magnetic core. The excitation coil comprises a first winding and a second winding connected together at a common point forming an input of the first winding and an output of the second winding, the first winding connected in series to a first switch (S1) and the second winding connected in series to a second switch (S2).
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
An open-loop current transducer (2) configured for mounting around a primary conductor bar (1) having a substantially rectangular cross-section with a width (W) and height (H), the width being greater than the height, the current transducer comprising an insulating support (5) surrounding a central passage through which the primary conductor extends when mounted to the current transducer, the insulating support having at least two parts, a first support part (5a) and a second support part (5b) mountable together around the primary conductor bar (1), the current transducer further comprising a plurality of discrete magnetic field sensors arranged within the insulating support (5) around the primary conductor bar, the current transducer further comprising a mounting bracket (6) attached to a branch of the insulating support (5). The mounting bracket (6) comprises at least one mounting pillar (20) having a plurality of height adjustment locating holes (22), and a mounting flange (24) comprising a primary conductor fixing member (26) configured for attachment of the mounting bracket to the primary conductor, the insulating support (5) comprising at least one fixing hole (16) alignable with one of the plurality of height adjustment locating holes, through which a height fixing pin (7) of the current transducer is inserted to locate the height of the mounting bracket (6) relative to the branch of the insulating support comprising the fixing hole such that a height position of the primary conductor bar (1) relative to the insulating support is adjusted.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
A current transducer module (2) comprising - a housing having a base wall (24) and side walls (26) forming an internal cavity (28), - a magnetic core part (6), - magnetic field detectors (8a, 8b), and - a circuit board (10), the magnetic core part, magnetic field detectors, and the circuit board mounted within the internal cavity (28) of the housing (4), the magnetic core part (6) extending from a first core end (6a) to a second core end (6b), the magnetic field detectors comprising a first magnetic field detector (8a) positioned opposite the first core end (6a) and a second magnetic detector (8b) positioned opposite the second core end (6b), the magnetic field detectors (8a, 8b) connected to the circuit board and arranged substantially co-planar with respect to each other. The magnetic field detectors (8a, 8b) are mounted against the base wall (24) of the housing (4) and the magnetic core part is mounted above the magnetic field detectors such that the magnetic field detectors are positioned in a gap between the housing base wall and the magnetic core part.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
6.
INTEGRATED CIRCUIT CHIP WITH STRESS COMPENSATION CIRCUIT
G01L 1/22 - Mesure des forces ou des contraintes, en général en mesurant les variations de la résistance ohmique des matériaux solides ou des fluides conducteurs de l'électricitéMesure des forces ou des contraintes, en général en faisant usage des cellules électrocinétiques, c.-à-d. des cellules contenant un liquide, dans lesquelles un potentiel électrique est produit ou modifié par l'application d'une contrainte en utilisant des jauges de contrainte à résistance
G01D 3/036 - Dispositions pour la mesure prévues pour les objets particuliers indiqués dans les sous-groupes du présent groupe pour atténuer les influences indésirables, p. ex. température, pression sur les dispositions de mesure elles-mêmes
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
G01L 1/18 - Mesure des forces ou des contraintes, en général en utilisant des propriétés des matériaux piézo-résistants, c.-à-d. des matériaux dont la résistance ohmique varie suivant les modifications de la grandeur ou de la direction de la force appliquée au matériau
7.
CURRENT TRANSDUCER FOR MEASURING RESIDUAL CURRENTS
A current transducer (1) for measuring a residual current, comprising a plurality of primary conductors (2, 2a, 2b, 2c), a magnetic core (3) having at least one air gap (13), at least one field sensor (4) positioned within said at least one air gap (13), and a housing (9) enclosing at least a portion of the primary conductors, magnetic core and magnetic field sensor, each primary conductor extending between first and second connection terminals (61a, 61b, 62a, 62b, 63a, 63b) and having a center section (7a, 7b, 7c) interconnecting the first and second connection terminals, the center section extending through a primary conductor passage (10) surrounded by the magnetic core (3), center sections of the primary conductors arranged in an overlapping stacked relationship separated by insulating layers, the center sections extending along a primary conductor center line (A) extending through the primary conductor passage (10). At least a first primary conductor of said plurality of primary conductors comprises a first connection terminal (61a) positioned at a non-null distance from said center line (A) and the second connection terminal (61b) thereof being positioned at a non-null distance from said center line (A) on a second side of the center line opposite the first side of the center line, and at least a second primary conductor of said plurality of primary conductors having said first connection terminals (63a) separated from the center line at a non-null distance on said second side and having a second said connection terminal (63b) separated from the center line by a non-null distance on the first side of the center line.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
8.
CURRENT SENSOR WITH DIFFERENTIAL MAGNETIC FIELD TRANSDUCER
A current sensor (2) comprising a differential magnetic field transducer (4) having at least two magnetic field sensor portions (14), configured for measuring a primary current flowing in a primary conductor positioned adjacent and in proximity to the differential magnetic field transducer (4), and a housing (10) in which the differential magnetic field transducer is lodged, characterized in that the current sensor further comprises a magnetic shield (8) having lateral branches (16a) joined together at one end thereof to a bridging branch (16b) such that the magnetic shield (8) has a general U-shape. The magnetic shield surrounds a primary conductor passage (5) through which the primary conductor (1) is installed in use, the differential magnetic field transducer positioned adjacent and in proximity to the bridging branch (16b), between the bridging branch (16b) and primary conductor passage (5).
G01R 1/18 - Aménagements de blindage contre les champs électriques ou magnétiques, p. ex. contre le champ terrestre
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
9.
MAGNETIC FIELD GRADIENT TRANSDUCER AND CURRENT TRANSDUCER THEREWITH
A magnetic field gradient transducer (1) for surface mounting on a circuit board (21), comprising - an integrated circuit (IC) chip (2) comprising an active first side (9a), a second side (9b), at least two magnetic field sensing portions (20) on the active side, and connection terminals (11) on the active side, the at least two magnetic field sensing portions (20) separated by a gap (G) configured for a magnetic field gradient measurement, - a lead frame arrangement (3) comprising a plurality of secondary conductors (5) and a shield conductor (6), the shield conductor in overlapping relation with the IC chip, - a plurality of secondary conductor bond wires (14) interconnecting two or more of the secondary conductors (5) to the connection terminals (11) of the IC chip, and - an insulating housing (7) overmolded over the IC chip, the secondary conductor bond wires, and a portion of the lead frame arrangement (3), whereby circuit board contact portions of the secondary conductors and the shield conductor are exposed and configured for surface mount connection to the external circuit board. The shield conductor has a non-indented portion (12) and an indented portion (13) upon which the IC chip is mounted, the indented portion having a thickness H2 less than a thickness H1 of the non-indented portion and secondary conductors.
G01R 19/20 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant la conversion d'un courant continu en courant alternatif, p. ex. à l'aide de vibreurs utilisant des transducteurs
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
Electric current transducer comprising a housing, a magnetic core and a magnetic field detection system, the magnetic core surrounding a primary conductor passage for receiving a primary conductor therethrough, the magnetic core comprising a first part and a second part assembled in the housing so as to form a first magnetic circuit gap and a second magnetic circuit gap, the magnetic field detection system comprising a first magnetic field detector positioned in the first magnetic circuit gap and a second magnetic field detector positioned in the second magnetic circuit gap, the first and second magnetic circuit gaps being disposed on opposing sides of magnetic core, each of the first and second parts comprising a pair of lateral branches, joined by a bridging branch.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
11.
Fluxgate current transducer with an analog measurement channel
Fluxgate current transducer including a control circuit and a fluxgate device comprising a saturable soft magnetic core surrounded by an excitation coil, the control circuit comprising an excitation coil drive circuit connected to the excitation coil configured to generate an alternating magnetic field to alternatingly saturate the soft magnetic core. The excitation coil comprises a first winding and a second winding connected together at a common point forming an input of the first winding and an output of the second winding, the first winding connected in series to a first switch (S1) and the second winding connected in series to a second switch (S2).
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
Fluxgate current transducer including a control circuit and a fluxgate measuring device comprising a fluxgate magnetic field detector, the fluxgate magnetic field detector comprising a saturable soft magnetic core surrounded by an excitation coil, the control circuit comprising an excitation coil drive circuit connected to the excitation coil and a controller connected to the excitation coil drive circuit configured to generate an alternating excitation current Ifx to alternatingly saturate the soft magnetic core. The controller is in the form of a FPGA (Field Programmable Gate Array) comprising at least one input comprising a 1 bit sigma delta analog-to-digital converter (ADC) connected to the excitation coil to receive a measurement signal output by the excitation coil.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
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
A current transducer comprising a housing including a base and a cover, a magnetic circuit mounted within a cavity of the base, the magnetic circuit comprising a magnetic core and a least one coil wound around the magnetic core, and an electric circuit comprising a first circuit board mounted within the housing, the first circuit board comprising a signal processing circuit connected to the magnetic field detector and to the coil. The transducer further comprises a second circuit board comprising one or more power amplifiers mounted thereon, the second circuit board being integrated within an inner side of a metallic support substrate forming an outer layer of said cover, the metallic support substrate fixed to the housing base to cover the cavity therein with the second circuit board forming an inner side of the cover facing the first circuit board, the first and second boards interconnected electrically by electrical interconnections.
G01R 33/02 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 33/07 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs à effet Hall
G01R 33/09 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs magnéto-résistifs
B82Y 25/00 - Nanomagnétisme, p. ex. magnéto-impédance, magnétorésistance anisotropique, magnétorésistance géante ou magnétorésistance à effet tunnel
B82Y 35/00 - Procédés ou appareils pour la mesure ou l’analyse des nanostructures
B82Y 40/00 - Fabrication ou traitement des nanostructures
An open-loop electrical current transducer for surface mounting on an external circuit board, including an integrated circuit (IC) chip including a magnetic field sensing portion and connection terminals on a first active side of the IC chip, a lead frame arrangement including a primary conductor and a plurality of secondary conductors comprising IC connection portions, a plurality of bond wires interconnecting the IC connection portions to the connection terminals of the IC chip, and an insulating overmold housing overmolded over the IC chip, the bond wires, and a portion of the lead frame arrangement. The lead frame arrangement is formed from sheet metal having a base sheet of thickness B wherein at least portions of the lead frame arrangement include a thickness equal to the base sheet thickness B. The first active side of the IC chip faces the lead frame arrangement and at least a portion of the lead frame arrangement includes a thinned portion of thickness T between 20% and 80% of the base sheet thickness B, the thinned portion of thickness T including the IC connection portions of the secondary conductors.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
Magnetic field detector module (1) comprising a pair of magnetic field concentrators (5), an airgap (7) formed between the pair of magnetic field concentrators, a magnetic field sensing cell (2) mounted within the airgap, a plurality of terminals (3) for interconnecting the magnetic field sensing cell to an external circuit, and an insulating housing (4) within which the magnetic field concentrators, magnetic field sensing cell, and the terminals are assembled. The magnetic field detector module further comprises a circuit board (8) on which the magnetic field sensing cell is mounted such that a portion of the circuit board is inserted in the airgap, each terminal (3) having a substantially planar shape cut out of a sheet of metal arranged substantially orthogonally to the circuit board and comprising an internal board connection portion having a pair of opposed contacts (9) separated by a slot (11), each contact engaging a respective side of the circuit board.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
An open-loop electrical current transducer for measuring an electrical current flowing in a primary conductor, includes a magnetic circuit core with an air-gap, and a magnetic field sensing device positioned at least partially in the air-gap, the magnetic field sensing device including a circuit board, a first magnetic field detector in the form of an ASIC mounted on the circuit board, and a second magnetic field detector in the form of a conductive pick-up coil formed on two or more layers in or on the circuit board. The outputs of the first and second magnetic field detectors are connected to a signal processing circuit generating an output signal representative of the electrical current, the output of the ASIC representing a low frequency (LF) channel and the output of the pick-up coil representing a high frequency (HF) channel.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 1/30 - Combinaison structurelle d'appareils de mesures électriques avec des circuits électroniques fondamentaux, p. ex. avec amplificateur
G01R 33/02 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques
Electric current transducer (1) comprising a housing (2), a magnetic core and a magnetic field detection system, the magnetic core surrounding a primary conductor passage (4) for receiving a primary conductor (30) therethrough, the magnetic core comprising a first part (15) and a second part (16) assembled in the housing so as to form a first magnetic circuit gap (17a) and a second magnetic circuit gap (17b), the magnetic field detection system comprising a first magnetic field detector (18a) positioned in the first magnetic circuit gap (17a) and a second magnetic field detector (18b) positioned in the second magnetic circuit gap (17b), the first and second magnetic circuit gaps being disposed on opposing sides of magnetic core, each of the first and second parts comprising a pair of lateral branches (15a, 16a), joined by a bridging branch (15b, 16b). The lateral branches of the first and second magnetic core parts overlap such that the lateral branches (15a) of the first part (15) of the magnetic core are positioned adjacent an inner side of the lateral branches (16a) of the second part (16) of the magnetic core, said first and second magnetic circuit gaps being formed between an outer side of the lateral branches of the first part and an inner side of the lateral branches of second part.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 1/22 - Appareils de test à pinces agissant comme bobinages secondaires de transformateurs de courant
3) flowing in a plurality n of primary conductors of a multi-phase electrical system. The transducer comprises a housing, a magnetic core including first and second core parts and a plurality n+1 of magnetic field detectors mounted in the housing between the first and second core parts in which portions of the primary conductors traversing the current transducer housing are positioned. The system further comprises a non-volatile memory in which information on at least one coupling matrix (K), pre-defined in a calibration procedure, is stored.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 35/00 - Test ou étalonnage des appareils couverts par les autres groupes de la présente sous-classe
Fluxgate current transducer (2) including a control circuit (4) and a fluxgate device (2) comprising a saturable soft magnetic core (6) surrounded by an excitation coil (8), the control circuit comprising an excitation coil drive circuit connected to the excitation coil configured to generate an alternating magnetic field to alternatingly saturate the soft magnetic core. The excitation coil comprises a first winding (8a) and a second winding (8b) connected together at a common point (9) forming an input of the first winding and an output of the second winding, the first winding connected in series to a first switch (S1) and the second winding connected in series to a second switch (S2). The first and second switches are controlled by the control circuit to provide an excitation coil current in the first winding generating a magnetic field in the magnetic core in a first direction, and an excitation coil current in the second winding generating a magnetic field in the magnetic core in a second direction opposite to the first direction.
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/20 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant la conversion d'un courant continu en courant alternatif, p. ex. à l'aide de vibreurs utilisant des transducteurs
Fluxgate current transducer including a fluxgate device comprising a saturable soft magnetic core and an excitation coil, and a processing circuit comprising a control circuit and a voltage generator connected to the control circuit for generating an alternating current in the excitation coil, the voltage generator generating a voltage oscillating between a maximum positive voltage (+U) and a maximum negative voltage (−U) configured to alternatingly saturate the soft magnetic core. The signal processing circuit comprises an overload circuit portion connected to the control circuit, configured to generate overload currents through the excitation coil over time windows (Tn) after detection of the excitation coil current reaching positive and negative threshold currents (+S3, −S3) representative of saturation of the magnetic core, during at least one of a plurality of alternating voltage periods (P).
G01R 33/04 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 33/02 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques
G01R 33/05 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux dans un film mince
A DC meter for an electrical vehicle charging station having a pair of DC power supply lines extending from a charging station controller to an electrical vehicle connector, the DC meter comprising a meter unit and a sensor unit. The meter unit comprises a user interface, a sensor interface for connection to the sensor unit, a metering interface for connection to the charging station controller, and a microprocessor configured to receive and process signals received from the sensor unit, to exchange data with the charging station controller and to receive commands from the user interface and output information to the user interface. The sensor unit is separate and connected at a point distal from the meter unit via an interconnection cable for the transmission of measurement signals.
G01R 22/06 - Dispositions pour la mesure de l'intégrale dans le temps d'une puissance électrique ou d'un courant, p. ex. compteurs d'électricité par des méthodes électroniques
B60L 53/62 - Surveillance et commande des stations de charge en réponse à des paramètres de charge, p. ex. courant, tension ou charge électrique
G01R 19/10 - Mesure d'une somme, d'une différence, ou d'un rapport
A current transducer comprising a housing (3) including a base (4) and a cover (5), a magnetic circuit mounted within a cavity (12) of the base, the magnetic circuit comprising a magnetic core and a least one coil (6) wound around the magnetic core, and an electric circuit (7) comprising a first circuit board (8) mounted within the housing, the first circuit board comprising a signal processing circuit connected to the magnetic field detector and to the coil. The transducer further comprises a second circuit board (9) comprising one or more power amplifiers (15) mounted thereon, the second circuit board being integrated within an inner side of a metallic support substrate forming an outer layer of said cover (5), the metallic support substrate fixed to the housing base (4) to cover the cavity (12) therein with the second circuit board (9) forming an inner side of the cover facing the first circuit board, the first and second boards interconnected electrically by electrical interconnections (17).
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
Fluxgate current transducer (2) including a control circuit (3) and a fluxgate measuring device (7) comprising a fluxgate magnetic field detector (4), the fluxgate magnetic field detector comprising a saturable soft magnetic core surrounded by an excitation coil, the control circuit comprising an excitation coil drive circuit (14) connected to the excitation coil and a controller (18) connected to the excitation coil drive circuit configured to generate an alternating excitation current Ifx to alternatingly saturate the soft magnetic core. The controller is in the form of a FPGA (Field Programmable Gate Array) comprising at least one input comprising a 1 bit sigma delta analog-to-digital converter (ADC) (21) connected to the excitation coil to receive a measurement signal (19) output by the excitation coil.
H03M 3/00 - Conversion de valeurs analogiques en, ou à partir d'une modulation différentielle
G01R 33/04 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
A current transducer including a Rogowski cable extending between a free end and a signal output connection end, a signal output cable connected to the signal output connection end of the Rogowski cable, and a connector comprising an electrically conductive magnetic core having a first cable end lodging cavity receiving the signal output connection end of the Rogowski cable therein, and a second cable end lodging cavity receiving the free end of the Rogowski cable therein, the Rogowski cable comprising an outer shielding layer connected to a conductor of the signal output cable configured for a ground connection. The current transducer further comprises a conductive grounding connection establishing an electrical contact between the magnetic core and the shielding conductor of the Rogowski cable.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
An open loop current transducer comprising a housing, a magnetic core comprising a pair of core parts forming a pair of magnetic field gaps therebetween, the magnetic core mounted in the housing, a pair of magnetic field detectors, one magnetic field detector being mounted in each magnetic field gap, a leadframe comprising core mounting parts and magnetic field detector contacts, and a mounting plate. The mounting plate is mounted on a top side of the magnetic core and the leadframe mounted on a bottom mounting side of the magnetic core. The mounting plate is fixed to the pair of core parts and defines the position of the magnetic core parts. The magnetic field detector contacts comprise circuit board contact portions for connection to an external circuit board, and magnetic field detector contact portions for connection to contacts of the magnetic field detectors.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
H05K 1/18 - Circuits imprimés associés structurellement à des composants électriques non imprimés
G01R 33/07 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs à effet Hall
27.
Method of reducing noise in a fluxgate current transducer
Fluxgate current transducer including a fluxgate device comprising a saturable soft magnetic core and an excitation coil, and a processing circuit comprising a control circuit and a voltage generator connected to the control circuit for generating an alternating current in the excitation coil, the voltage generator generating a voltage oscillating between a maximum positive voltage (+Umax) and a maximum negative voltage (−Umax) configured to alternatingly saturate the soft magnetic core. The control circuit is configured to generate a voltage having an absolute value of amplitude less than an absolute value of said maximum positive voltage (+Umax) and said maximum negative voltage (−Umax) voltage during a variable time window (Tn, Tn+1, Tn+2, Tn+3) after detection of the excitation coil current reaching a threshold current (S3) representative of saturation of the magnetic core during at least a subset of a plurality of alternating voltage periods (P).
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 33/04 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux
28.
Current transducer with magnetic core on primary conductor bar
An open loop electrical current transducer including a primary conductor bar, for carrying a current to be measured, a magnetic core having a U shape formed by an end branch and lateral branches upstanding therefrom to free ends, a magnetic circuit gap formed between inner surfaces of the lateral branches at the free ends of the lateral branches, a magnetic field detector positioned in the magnetic circuit gap, and a housing surrounding the magnetic core and a section of the primary conductor bar extending through the magnetic core and beyond the magnetic core either side thereof. The primary conductor bar includes a central portion having a width (Wc) equal to the width of a magnetic field gap (Wg) such that the central portion is clamped between said lateral branches in an interference force fit.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
Current transducer including a housing comprising a coil support, a magnetic core extending between a first end and a second end, and a coil comprising a plurality of windings formed around the coil support. The coil support comprises a core receiving channel within which the magnetic core is inserted, the coil support comprising a radially inner support portion and a radially outer support portion between which the core receiving channel is disposed. The radially inner support portion is slidably movable with respect to the radially outer support portion.
B23P 19/00 - Machines effectuant simplement l'assemblage ou la séparation de pièces ou d'objets métalliques entre eux ou des pièces métalliques avec des pièces non métalliques, que cela entraîne ou non une certaine déformationOutils ou dispositifs à cet effet dans la mesure où ils ne sont pas prévus dans d'autres classes
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
30.
Current transducer with magnetic field detector module
An electrical current transducer including a magnetic core and a magnetic field detector module, the magnetic core and magnetic field detector module each forming a single unit separably mountable around a primary conductor and to a circuit board, the magnetic core having a general U shape including an end branch and lateral branches extending the end branch to respective free ends, the magnetic field detector module being positioned between the lateral branches and extending across a whole width of a gap formed between the lateral branches. The magnetic field detector module includes at least one magnetic field sensing cell, a pair of magnetic concentrators arranged in mirror opposition forming a magnetic field gap therebetween in which the at least one sensing cell is positioned, and an insulating body supporting the magnetic concentrators and at least one sensing cell.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
A magnetic field sensor comprises a signal conditioning IC and a magnetic field sensor IC, the magnetic field sensor IC being mounted on and connected to the signal conditioning IC. The magnetic field sensor IC comprises a semi-conductor substrate with a sensor active layer disposed an outer facing side of the magnetic field sensor opposite the signal conditioning IC. The sensor active layer is connected to conductive vias that extend through the semi-conductor substrate from said outer facing side to an underside facing the signal conditioning IC, an underside of the conductive via being electrically interconnected to a connection pad on the signal conditioning IC via a chip-on-chip interconnection comprising a conductive bead connection and a solder connection.
G01R 33/07 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs à effet Hall
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
G01R 33/09 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant des dispositifs galvano-magnétiques des dispositifs magnéto-résistifs
An open-loop electrical current transducer (1) for surface mounting on an external circuit board, comprising an integrated circuit (IC) chip (2) comprising a magnetic field sensing portion (10) and connection terminals (11) on a first active side (9a) of the IC chip (2), a lead frame arrangement (3) comprising a primary conductor (4) and a plurality of secondary conductors (5) comprising IC connection portions (15), a plurality of bond wires (6) interconnecting the IC connection portions (15) to the connection terminals (11) of the IC chip (2), and an insulating overmold housing (7) overmolded over the IC chip (2), the bond wires (6), and a portion of the lead frame arrangement (3). The lead frame arrangement (3) is formed from sheet metal having a base sheet of thickness B wherein at least portions of the lead frame arrangement (3) comprise a thickness equal to said base sheet thickness B. The first active side (9a) of the IC chip (2) faces the lead frame arrangement (3) and at least a portion of the lead frame arrangement (3) comprises a thinned portion of thickness T between 20% and 80% of the base sheet thickness B, said thinned portion of thickness T including said IC connection portions (15) of the secondary conductors (5).
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
An open-loop electrical current transducer (1) for measuring an electrical current flowing in a primary conductor (19), comprising a magnetic circuit core (3) with an air-gap (4), and a magnetic field sensing device (5) positioned at least partially in said air-gap, the magnetic field sensing device comprising a circuit board, a first magnetic field detector (8) in the form of an ASIC mounted on the circuit board, and a second magnetic field detector (12) in the form of a conductive pick-up coil formed on two or more layers in or on the circuit board. The outputs of the first and second magnetic field detectors are connected to a signal processing circuit (6) generating an output signal representative of said electrical current, the output of the ASIC representing a low frequency (LF) channel and the output of the pick-up coil representing a high frequency (HF) channel. The signal processing circuit comprises an adding circuit configured to sum a signal output by the LF channel with a signal output by the HF channel, and one or more circuit components to adjust a gain of the output signal of the pick-up coil to a gain of the output signal of the ASIC.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
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
35.
Current transducer with integrated primary conductor
Electrical current transducer including an insulating body, a magnetic core comprising a central passage and a magnetic circuit gap, a magnetic field detector positioned in the magnetic circuit gap, and a sheet metal leadframe conductor arrangement comprising a primary conductor for carrying the current to be measured and secondary conductors for connecting the magnetic field detector to an external circuit, the primary conductor comprising a central portion extending through the central passage of the magnetic core, lateral extension arms extending from opposite ends of the central portion, and connection ends for connection to an external conductor, the secondary conductors comprising a plurality of conductors, each conductor comprising a sensing cell connection pad substantially aligned with the central portion of the primary conductor and a connection end for connection to the external circuit, the insulating body comprising an inner overmold portion surrounding a central portion of the primary conductor and forming a core guide positioning and insulating the magnetic core with respect to the leadframe conductor arrangement. The insulating body further comprises an outer overmold portion molded over the inner overmold portion, the magnetic core, magnetic field sensor, and a central portion of the leadframe conductor arrangement.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
H01L 43/04 - Dispositifs utilisant les effets galvanomagnétiques ou des effets magnétiques analogues; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives - Détails de dispositifs à effet Hall
H01L 43/14 - Procédés ou appareils spécialement adaptés à la fabrication ou le traitement de ces dispositifs ou de leurs parties constitutives pour dispositifs à effet Hall
UUTnTn) after detection of the excitation coil current reaching positive and negative threshold currents (+S3, -S3) representative of saturation of the magnetic core, during at least one of a plurality of alternating voltage periods (P).
G01R 33/04 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
An open loop current transducer (1) comprising a housing, a magnetic core (3) comprising a pair of core parts (3a, 3b) forming a pair of magnetic field gaps (13a, 13b) therebetween, the magnetic core mounted in the housing (2), a pair of magnetic field detectors (4a, 4b), one magnetic field detector being mounted in each magnetic field gap, a leadframe (5) comprising core mounting parts (16a, 16b) and magnetic field detector contacts (19), and a mounting plate (6). The mounting plate (6) is mounted on a top side of the magnetic core (3) and the leadframe (5) mounted on a bottom mounting side of the magnetic core (3). The mounting plate (6) is fixed to the pair of core parts (3a, 3b) and defines the position of the magnetic core parts. The magnetic field detector contacts (19) comprise circuit board contact portions (20) for connection to an external circuit board, and magnetic field detector contact portions (21) for connection to contacts (24) of the magnetic field detectors (4a, 4b), the magnetic field detector contact portions (21) positioned in a magnetic field detector mounting cavity (10) on opposed lateral sides (9) of the housing (2).
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
A current transducer (1) including a Rogowski cable (2) extending between a free end (14b) and a signal output connection end (14a), a signal output cable (4) connected to the signal output connection end (14a) of the Rogowski cable (2), and a connector (6) comprising an electrically conductive magnetic core (8) having a first cable end lodging cavity (26) receiving the signal output connection end (14a) of the Rogowski cable therein, and a second cable end lodging cavity (27) receiving the free end (14b) of the Rogowski cable therein, the Rogowski cable comprising an outer shielding layer (18) connected to a conductor of the signal output cable configured for a ground connection. The current transducer further comprises a conductive grounding connection (12, 12') establishing an electrical contact between the magnetic core and the shielding conductor of the Rogowski cable.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
40.
METHOD OF REDUCING NOISE IN A FLUXGATE CURRENT TRANSDUCER
Fluxgate current transducer (2) including a fluxgate device (3) comprising a saturable soft magnetic core (4) and an excitation coil (6), and a processing circuit (5) comprising a control circuit (7) and a voltage generator (9) connected to the control circuit for generating an alternating current in the excitation coil, the voltage generator generating a voltage oscillating between a maximum positive voltage (+Umax) and a maximum negative voltage (-Umax) configured to alternatingly saturate the soft magnetic core (4). The control circuit (7) is configured to generate a voltage having an absolute value of amplitude less than an absolute value of said maximum positive voltage (+Umax) and said maximum negative voltage (- Umax) voltage during a variable time window (Tn, Tn+1, Tn+2, Tn+3) after detection of the excitation coil current reaching a threshold current (S3) representative of saturation of the magnetic core during at least a subset of a plurality of alternating voltage periods (P).
G01R 33/04 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
41.
CURRENT TRANSDUCER FOR MEASURING RESIDUAL CURRENTS
Electric current transducer comprising a current transducer unit (3) having a housing (4), a magnetic field detector (5) mounted within the housing, and a central passage (9) extending through the housing and magnetic field detector for receiving first and second primary conductors (8a, 8b) therethrough carrying primary currents of opposite direction forming a residual current to be measured, the electric current transducer further comprising a primary conductor device (2) comprising an insulating support, the first and second primary conductors (8a, 8b) being mounted to the insulating support, the first and second primary conductor being formed from cylindrical conducting wires having connection portions (14) for connection to an external circuit and measurement portions (13) extending through the central passage (9). Each measurement portion (13) comprises a flattened shape offset from a center axis of the cylindrical conducting wire towards a center of the central passage, the measurement portion (13) of the first primary conductor being separated from the measurement portion (13) of the second primary conductor by a separating wall (11) of the insulating support.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 19/10 - Mesure d'une somme, d'une différence, ou d'un rapport
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/20 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe utilisant la conversion d'un courant continu en courant alternatif, p. ex. à l'aide de vibreurs utilisant des transducteurs
An electronic power switch drive module for a power semiconductor unit, comprising a gate drive and a current transducer mounted on one or more circuit boards, the gate drive comprising at least one circuit portion for controlling at least one transistor of a power semiconductor module of said power semiconductor unit, the current transducer configured to be coupled to an output of the power semiconductor module for measuring an output current of the power semiconductor module, said at least one circuit portion connected to an output potential of the output current to be measured. The current transducer comprises at least one magnetic field sensor, the current transducer being connected to said at least one circuit portion of the gate drive at said output potential in a non-isolated manner.
H03K 17/082 - Modifications pour protéger le circuit de commutation contre la surintensité ou la surtension par réaction du circuit de sortie vers le circuit de commande
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
H03K 17/90 - 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 galvano-magnétiques, p. ex. des dispositifs à effet Hall
A DC meter (1) for an electrical vehicle charging station having a pair of DC power supply lines (27a, 27b) extending from a charging station controller (40) to an electrical vehicle connector (28), the DC meter comprising a meter unit (2) and a sensor unit (3). The meter unit comprises a user interface (9), a sensor interface (11) for connection to the sensor unit (3), a metering interface (30) for connection to the charging station controller, and a microprocessor (10) configured to receive and process signals received from the sensor unit (3), to exchange data with the charging station controller and to receive commands from the user interface and output information to the user interface. The sensor unit is separate and connected at a point distal from the meter unit via an interconnection cable (25) for the transmission of measurement signals, the sensor unit being coupled to one of the pair of DC power supply lines (27a, 27b) configured for measuring the current flowing through said power line, the sensor unit further comprising a voltage sensor (6) for coupling to each of the pair of power supply lines for measuring a voltage difference therebetween.
G01R 22/06 - Dispositions pour la mesure de l'intégrale dans le temps d'une puissance électrique ou d'un courant, p. ex. compteurs d'électricité par des méthodes électroniques
Closed loop current transducer includes a fluxgate sensing unit, a compensation coil wound around the fluxgate sensing unit, and a transducer housing mounted around the compensation coil, the fluxgate sensing unit comprising a fluxgate housing, a ring-shaped fluxgate magnetic field detector mounted in the fluxgate housing, and a magnetic shield mounted in the fluxgate housing, the magnetic shield surrounding the fluxgate magnetic field detector. The fluxgate housing includes first and second central parts, each central part comprising a radially inner side wall, a radially outer side wall and a base wall joining the inner side wall to the outer side wall, a sensor housing portion being formed on one side of the base wall and receiving the fluxgate magnetic field detector therein.
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
G01R 33/04 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux
G01R 19/165 - Indication de ce qu'un courant ou une tension est, soit supérieur ou inférieur à une valeur prédéterminée, soit à l'intérieur ou à l'extérieur d'une plage de valeurs prédéterminée
G01R 21/00 - Dispositions pour procéder aux mesures de la puissance ou du facteur de puissance
Current transducer including a housing (2) comprising a coil support (4), a magnetic core (5) extending between a first end (20a) and a second end (20b), and a coil (6) comprising a plurality of windings formed around the coil support (4). The coil support (4) comprises a core receiving channel (13) within which the magnetic core is inserted, the coil support comprising a radially inner support portion (10) and a radially outer support portion (12) between which the core receiving channel (13) is disposed. The radially inner support portion (10) is slidably movable with respect to the radially outer support portion (12).
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
46.
CURRENT TRANSDUCER WITH MAGNETIC CORE ON PRIMARY CONDUCTOR
An open loop electrical current transducer (2) comprising a primary conductor bar (4, 104, 104´) for carrying a current to be measured, a magnetic core (6) having a U shape formed by an end branch (6a) and lateral branches (6b) upstanding therefrom to free ends, a magnetic circuit gap (5) formed between inner surfaces (18b) of the lateral branches (6b) at the free ends of the lateral branches, a magnetic field detector (8) positioned in the magnetic circuit gap (5), and a housing surrounding the magnetic core (6) and a section of the primary conductor bar extending through the magnetic core (6) and beyond the magnetic core either side thereof. The primary conductor bar comprises a central portion (14, 114, 114´) having a width (Wc) equal to the width of a magnetic field gap (Wg) such that the central portion is clamped between said lateral branches in an interference force fit.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
A magnetic field sensor (2) comprises a signal conditioning IC (4) and a magnetic field sensor IC (6), the magnetic field sensor IC (6) being mounted on and connected to the signal conditioning IC (4). The magnetic field sensor IC comprises a semi-conductor substrate (13) with a sensor active layer (5) disposed an outer facing side (13a) of the magnetic field sensor (2) opposite the signal conditioning IC. The sensor active layer (5) is connected to conductive vias (9) that extend through the semi-conductor substrate from said outer facing side (13a) to an underside (13b) facing the signal conditioning IC, an underside of the conductive via (9) being electrically interconnected to a connection pad (3) on the signal conditioning IC (4) via a chip-on-chip interconnection (8) comprising a conductive bead connection (10) and a solder connection (12).
An electrical current transducer (2) comprising a magnetic core (6) and a magnetic field detector module (8), the magnetic core and magnetic field detector module each forming a single unit separably mountable around a primary conductor (4) and to a circuit board (10), the magnetic core having a general U shape comprising an end branch (14a) and lateral branches (14b) extending the end branch to respective free ends (14c), the magnetic field detector module being positioned between the lateral branches and extending across a whole width of a gap formed between the lateral branches. The magnetic field detector module comprises at least one magnetic field sensing cell (16), a pair of magnetic concentrators (22) arranged in mirror opposition forming a magnetic field gap (26) therebetween in which the at least one sensing cell is positioned, and an insulating body (20) supporting the magnetic concentrators and at least one sensing cell.
G01R 1/04 - BoîtiersOrganes de supportAgencements des bornes
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
wherein the reference voltage signal generators of the two or more capacitive current measurement units are connected together at a common floating voltage connection point.
G01R 15/16 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs capacitifs
G01R 15/14 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort
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 3/08 - Régulation de la tension ou du courant là où la tension ou le courant sont continus
Current transducer comprising a section of a primary conductor and a magnetic field gradient sensor mounted in proximity to the primary conductor configured to measure a magnetic field gradient in a gradient measurement direction transverse to a direction of flow of a primary current flowing in the primary conductor. The current transducer further comprises a first lateral magnetic shim mounted adjacent a first outer side of the primary conductor, and a second lateral magnetic shim mounted adjacent a second outer side of the primary conductor, a major internal surface of the first and second magnetic shims facing the magnetic field gradient sensor and extending essentially parallel to the direction of flow of the primary current.
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
A current transducer including a housing comprising an outer casing, a magnetic circuit core configured to encircle at least one primary conductor, and a magnetic field detector positioned in a magnetic circuit gap of the magnetic circuit core. The housing further includes an inner support part comprising a main body portion and a magnetic core support portion. The magnetic circuit core is in the form of a thin strip of amorphous material supported on the main body portion and magnetic core support portion, the magnetic circuit gap being formed between overlapping ends of the strip.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
53.
CURRENT TRANSDUCER WITH INTEGRATED PRIMARY CONDUCTOR
Electrical current transducer including an insulating body (10), a magnetic core (6) comprising a central passage (18) and a magnetic circuit gap (22), a magnetic field detector (8) positioned in the magnetic circuit gap, and a sheet metal leadframe conductor arrangement (4) comprising a primary conductor (14) for carrying the current to be measured and secondary conductors (16) for connecting the magnetic field detector to an external circuit, the primary conductor comprising a central portion (15) extending through the central passage of the magnetic core, lateral extension arms (13) extending from opposite ends of the central portion, and connection ends (17) for connection to an external conductor, the secondary conductors comprising a plurality of conductors, each conductor comprising a sensing cell connection pad (21) substantially aligned with the central portion of the primary conductor and a connection end (19) for connection to the external circuit, the insulating body comprising an inner overmold portion (20) surrounding a central portion (15) of the primary conductor and forming a core guide (32) positioning and insulating the magnetic core with respect to the leadframe conductor arrangement. The insulating body further comprises an outer overmold portion (34) molded over the inner overmold portion, the magnetic core, magnetic field sensor, and a central portion of the leadframe conductor arrangement.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
H01L 23/31 - Encapsulations, p. ex. couches d’encapsulation, revêtements caractérisées par leur disposition
fluxgate) supplied by the measuring circuit. The measuring circuit is configured to provide a first and a second measurement output of the oscillating excitation current. The transducer further comprises a signal output processing unit for comparing in real-time the first and second measurements outputs, wherein the signal output processing unit is configured to send an error signal output if the difference between said first and second measurements outputs exceeds a tolerance value.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 33/04 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
A closed-loop current transducer comprising a magnetic circuit core made of a material with a low magnetic reluctance to conduct magnetic flux and concentrate a magnetic field, a magnetic field detector positioned in a magnetic circuit gap of the magnetic circuit core, and a compensation coil assembly comprising a compensation coil and a compensation coil support comprising a coil support bobbin, the compensation coil being wound around the coil support bobbin. The magnetic circuit comprises a first longitudinal branch, a second longitudinal branch, and first and second end branches interconnecting the first and second longitudinal branches such that the branches surround a central opening configured to receive one or more primary conductors therethrough, the magnetic circuit being formed of first and second parts assembled together from opposed ends of the compensation coil support.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
H01F 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
An electrical current transducer including a housing, a magnetic core comprising a central passage and a magnetic circuit gap, a magnetic field detector positioned in the magnetic circuit gap, and a leadframe conductor arrangement comprising a primary conductor for carrying the current to be measured and magnetic field detector conductors for connecting the magnetic field detector to an external circuit.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
H01L 43/04 - Dispositifs utilisant les effets galvanomagnétiques ou des effets magnétiques analogues; Procédés ou appareils spécialement adaptés à la fabrication ou au traitement de ces dispositifs ou de leurs parties constitutives - Détails de dispositifs à effet Hall
fx), the secondary coil (6) connected in a feedback loop (12) of the electronic circuit to the excitation coil drive circuit (14), the electronic circuit further comprising a ripple compensation circuit (26, 28) configured to compensate for a ripple signal generated by the alternating excitation voltage.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 33/04 - Mesure de la direction ou de l'intensité de champs magnétiques ou de flux magnétiques en utilisant le principe du déclenchement périodique de flux
G01R 1/00 - Détails ou dispositions des appareils des types couverts par les groupes ou
H02P 1/00 - Dispositions de démarrage de moteurs électriques ou de convertisseurs dynamo-électriques
Electrical current transducer for measuring an electric current in a primary conductor, including a housing (4), a magnetic core (6) surrounding a central aperture (9) through which the primary conductor extends, and a magnetic field sensing device (8) comprising connection terminals (18). The housing comprises a magnetic core receiving cavity (22) in which the magnetic core is lodged and a connecting interface portion (25) in which the magnetic field sensing is lodged, the connecting interface projecting outwardly from the magnetic core receiving cavity and comprising latching elements complementary to latching elements of a separate connector interface element (11) selectively mountable to the connecting interface portion. The connector interface element comprises a connector shroud (14) forming with the connection terminals a pluggable connector interface for pluggable connection to an external pluggable connector, the current transducer adapted for mounting on an external circuit board without connector shroud.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
H01R 13/66 - Association structurelle avec des composants électriques incorporés
G01R 1/04 - BoîtiersOrganes de supportAgencements des bornes
H01R 12/58 - Connexions fixes pour circuits imprimés rigides ou structures similaires caractérisées par les bornes bornes pour insertion dans des trous
H01R 13/74 - Montage des pièces de couplage dans les ouvertures d'un panneau
82.
Magnetic field sensor arrangement and current transducer therewith
Magnetic field sensor arrangement for positioning in a gap formed between end faces (12) of a magnetic core (4), comprising a magnetic field detector (5), a housing (10), and a grounding device (8), the magnetic field sensor and grounding device being mounted to the housing. The grounding device comprises at least one contact (20) elastically supported and configured for electrical contact with the magnetic core. The elastically supported contact is mounted adjacent a sensing portion of the magnetic field sensor and configured for insertion in the magnetic circuit core gap such that the contact elastically biases against the end face of the magnetic core.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
83.
Current transducer with integrated primary conductor bar
An electrical current transducer is disclosed which includes a primary conductor bar for carrying the current to be measured, a magnetic core having a magnetic circuit gap, a magnetic field sensor having a magnetic field detector positioned in the magnetic circuit gap, and an insulating housing surrounding the magnetic core and magnetic field sensor. The primary conductor bar has connection terminal ends extending outside of the housing configured for connection to an external primary conductor. The primary conductor bar has a core passage section comprising a fuse portion configured for interruption of the primary conductor if a predefined electrical current is exceeded. The core passage section has a reduced width (W1) in comparison to the connection terminal ends extending outside of the housing thereby providing indents within which at least a portion of the magnetic core is positioned such that a central passage of the magnetic core has a width (W3) less than the width (W2) of the primary conductor connection ends.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
G01R 31/36 - Dispositions pour le test, la mesure ou la surveillance de l’état électrique d’accumulateurs ou de batteries, p. ex. de la capacité ou de l’état de charge
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
84.
Current transducer with integrated primary conductor bar
An electrical current transducer is disclosed including a primary conductor bar for carrying the current to be measured, a magnetic core comprising a magnetic circuit gap, a magnetic field sensor having a circuit board and a magnetic field detector positioned in the magnetic circuit gap, and an insulating housing surrounding the magnetic core and magnetic field sensor. The primary conductor bar has connection terminal ends extending outside of the housing configured for connection to an external primary conductor. The primary conductor bar further includes a core passage section having a reduced width in comparison to the connection terminal ends extending outside of the housing thereby providing an indent within which the magnetic field detector is positioned such that a central passage of the magnetic core has a width less than the width of the primary conductor connection ends. The insulating housing comprises a main housing portion overmolded around the core passage section of the primary conductor bar, the main housing portion comprising a magnetic field sensor receiving slot configured to allow slideable insertion of the magnetic field sensor into the primary conductor bar indent for positioning in the magnetic circuit gap.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
Electrical current transducer to measure the current flowing in a primary conductor, the transducer including an outer casing, a magnetic core comprising a magnetic circuit gap, a magnetic field detector comprising a sensing portion positioned in the magnetic circuit gap, an insulating core housing, a secondary coil formed from a wire wound around a coil support portion of the insulating core housing, and an electrostatic shield. The electrostatic shield is positioned between secondary coil and a radially inner wall portion of the outer casing, the radially inner wall portion defining a passage configured to receive said primary conductor therethrough. The electrostatic shield comprises a skirt portion formed by a plurality of flexible strips extending axially from an edge of the shield, the flexible strips configured to elastically bias against a base wall portion of the outer casing.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
Electrical current transducer including a magnetic core comprising a magnetic circuit gap, a magnetic field detector comprising a sensing portion positioned in the magnetic circuit gap, an insulating support body comprising a coil support portion and a coil terminal connection portion, and a secondary coil formed from a wire wound around the coil support portion. The coil support portion has a generally U-shaped cross-sectional profile comprising a base wall, a radially inner wall extending from the base wall and a radially outer wall extending from the base wall, the radially inner and outer walls having a height configured such that open end edges thereof extend slightly beyond an axial thickness of the magnetic core including any manufacturing tolerances such that the open end edges are folded inwards around corners of the magnetic core by the coil wound around the magnetic core housing.
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
H01F 27/26 - Fixation des parties du noyau entre ellesFixation ou montage du noyau dans l'enveloppe ou sur un support
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 27/32 - Isolation des bobines, des enroulements, ou de leurs éléments
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
H01F 3/04 - Noyaux, culasses ou induits en bandes ou rubans
G01R 33/00 - Dispositions ou appareils pour la mesure des grandeurs magnétiques
H01F 41/02 - Appareils ou procédés spécialement adaptés à la fabrication ou à l'assemblage des aimants, des inductances ou des transformateursAppareils ou procédés spécialement adaptés à la fabrication des matériaux caractérisés par leurs propriétés magnétiques pour la fabrication de noyaux, bobines ou aimants
93.
Electrical current sensor with grounded magnetic core
An electrical current transducer comprising a housing, at least one magnetic core comprising an air gap and defining a central passage configured to receive a primary conductor carrying a primary current to be measured through the central passage, a magnetic field detector positioned at least partially in the air gap, and a grounding element. A lateral surface of the magnetic core is positioned against the grounding element without direct fixed attachment between the magnetic core and the grounding element, and the grounding element overlaps the magnetic core to an extent configured to ensure that a capacitive coupling (C3) between the magnetic core and the grounding element is greater than a capacitive coupling (C2) between the magnetic core and the magnetic field detector.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 19/00 - Dispositions pour procéder aux mesures de courant ou de tension ou pour en indiquer l'existence ou le signe
94.
Closed-loop current transducer with switched mode amplifier
A closed-loop current transducer for measuring a current (Ip) flowing in a primary conductor, the transducer powered by series connected voltage supplies (V_H, V_L) and comprising a magnetic field detector, a signal processing circuit including an amplifier circuit connected to the magnetic field detector, and a compensation coil (WS1) connected to the amplifier circuit and configured to generate an opposing magnetic field seeking to cancel a magnetic field generated by the current flowing in the primary conductor. The amplifier circuit comprises a first switched mode power stage configured to drive the magnetic field generator, and a second switched mode power stage configured to balance the currents of the voltage supplies.
G01R 15/20 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs galvano-magnétiques, p. ex. des dispositifs à effet Hall
G01R 15/18 - Adaptations fournissant une isolation en tension ou en courant, p. ex. adaptations pour les réseaux à haute tension ou à courant fort utilisant des dispositifs inductifs, p. ex. des transformateurs
brevets
