The present disclosure relates to planar transformer (10) comprising a first PCB (1) comprising a first coil pattern surrounding a first opening (11), a second PCB (2) comprising a second coil pattern surrounding a second opening (21), and at least one elastically compressible element (5) sandwiched between the first and second PCB (1, 2). The planar transformer (10) further comprises a top core portion (3) and a bottom core portion (4), wherein the first and second PCB (1, 2) are arranged between the top and bottom core portions (3, 4) and, wherein the at least one elastically compressible element (5) is compressed by the first and second PCB (1, 2) so as to push the first and second PCB (1, 2) away from each other, towards the inner surfaces of the top and bottom core portions (3, 4) of the magnetic core assembly, respectively.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Permanent magnet motors; electric motors for machines; integral permanent magnet motors; non-hydraulic drives for motors; non-hydraulic drives for electric motors; electric drives for regulation and control of torque and speed in electric motors; safety brakes for electric and non-hydraulic machines or electric non-hydraulic motors; electro-mechanical brakes for electric and non-hydraulic machines or electric non-hydraulic motors; all the goods listed above not for use for welding machines as such nor in connection with welding other than as integrated electronic or non-hydraulic drive components for regulation, control of torque, speed or brakes in welding robots. Electric apparatus and instruments for regulation and control of machines, electric apparatus and instruments for regulation and control of motors, electric apparatus and instruments for safety devices for avoidance of damages on persons, machines or goods; computer software, computer software for regulation and control of motors; computer hardware for regulation and control of motors; computer software for safety devices for avoidance of damages on persons, machines or goods; computer hardware for safety devices for avoidance of damages on persons, machines or goods; field buses; printed circuit cards; battery chargers; all the goods listed above not for use for welding machines as such nor in connection with welding other than as integrated electronic or non-hydraulic drive components for regulation, control of torque, speed or brakes in welding robots.. Engineering services; research services; industrial development services.
3.
Safe active discharge circuit for inverter in vehicle
An active discharge circuit for electric vehicle inverter, the active discharge circuit intended to be connected in parallel with a DC link capacitor connected between positive and negative lines of a DC power link, wherein the circuit comprises a dissipative current source, a switch connected in series with the current source between the DC lines, and a controller connected to the switch and arranged to apply an activation signal in dependence of a control signal, the activation signal placing the switch in a conducting state, wherein the current source is configured to draw a discharge current and dissipate any energy stored in the DC link capacitor when the switch is in the conducting state. As long as the switch is closed by the activation signal, the current source will draw a constant current and dissipate power, and the voltage across the DC link capacitor will decrease linearly.
H02M 1/32 - Means for protecting converters other than by automatic disconnection
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
An assembly (110) for dissipating heat generated by a heat generating electrical component (16) which is surface mounted on a circuit board (11) in a surface mounting process. The assembly comprises a heat buffer (120) made of a thermally and electrically conducing material, and being surface mounted on the circuit board (11) so as to be soldered to a thermal flag (18) of the heat generating electrical component (16). The assembly further comprises a heat sink (12) in thermal contact with the heat buffer, and a galvanic separation (13) between the heat buffer and heat sink. The heat capacitance of the heat buffer can absorb short term increases in heat dissipation from the electrical component, before the heat is further dissipated to the galvanically separated heat sink. This may drastically improve performance of the surface mounted component.
H05K 1/11 - Printed elements for providing electric connections to or between printed circuits
H05K 1/18 - Printed circuits structurally associated with non-printed electric components
H05K 3/34 - Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by soldering
H05K 3/40 - Forming printed elements for providing electric connections to or between printed circuits
5.
SAFE ACTIVE DISCHARGE CIRCUIT FOR INVERTER IN VEHICLE
An active discharge circuit for electric vehicle inverter, the active discharge circuit intended to be connected in parallel with a DC link capacitor connected between positive and negative lines of a DC power link, wherein the circuit comprises a dissipative current source, a switch connected in series with the current source between the DC lines, and a controller connected to the switch and arranged to apply an activation signal in dependence of a control signal, the activation signal placing the switch in a conducting state, wherein the current source is configured to draw a discharge current and dissipate any energy stored in the DC link capacitor when the switch is in the conducting state. As long as the switch is closed by the activation signal, the current source will draw a constant current and dissipate power, and the voltage across the DC link capacitor will decrease linearly.
H02M 1/32 - Means for protecting converters other than by automatic disconnection
B60L 50/60 - Electric propulsion with power supplied within the vehicle using propulsion power supplied by batteries or fuel cells using power supplied by batteries
B60L 3/00 - Electric devices on electrically-propelled vehicles for safety purposesMonitoring operating variables, e.g. speed, deceleration or energy consumption
B60L 15/00 - Methods, circuits or devices for controlling the propulsion of electrically-propelled vehicles, e.g. their traction-motor speed, to achieve a desired performanceAdaptation of control equipment on electrically-propelled vehicles for remote actuation from a stationary place, from alternative parts of the vehicle or from alternative vehicles of the same vehicle train
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Permanent magnet motors; electric motors for machines, namely, stepper motors and induction motors, not for land vehicles; electric motors, not for land vehicles; integral permanent magnet motors; non-hydraulic drives for motors; non-hydraulic drives for electric motors; electric drives for regulation and control of torque and speed in electric motors; safety brakes for electric and non-hydraulic machines or electric non-hydraulic motors, other than for land vehicles; electro-mechanical brakes for electric and non-hydraulic machines or electric non-hydraulic motors, other than for vehicles; all the goods listed above not for use for welding machines as such nor in connection with welding other than as integrated electronic or non-hydraulic drive components for regulation, control of torque, speed or brakes in welding robots; all the goods listed above being non-hydraulic, non-pneumatic Electric apparatus and instruments for regulation and control of electric current, torque, moment, and speed in non-hydraulic and non-pneumatic machines; electric apparatus and instruments for regulation and control of electric current, torque, moment, and speed in non-hydraulic and non-pneumatic motors; electric apparatus and instruments for safety devices for avoidance of damages on persons, machines or goods, namely, sensors and detector units, transmitters of electric signals, and control devices for electrical motors; recorded computer software for regulation of micro controllers; recorded computer software for regulation and control of non-hydraulic and non-pneumatic motors; computer hardware for regulation and control of non-hydraulic and non-pneumatic motors; recorded computer software for safety devices for avoidance of damages on persons, machines or goods; computer hardware for safety devices for avoidance of damages on persons, machines or goods; computer network interface devices, namely, field buses; printed electronic circuit cards; battery chargers; all the goods listed above not for use for welding machines as such nor in connection with welding other than as integrated electronic or non-hydraulic drive components for regulation, control of torque, speed or brakes in welding robots Engineering services in the electrical, electronical and communications fields; industrial research and product development services in the electrical, electronical and communications fields
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
(1) Permanent magnet motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; electric motors for machines, namely, stepper motors and induction motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; electric motors used in industrial applications excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; linear motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; power tool motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; integral permanent magnet motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; non-hydraulic drives for motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; non-hydraulic drives for electric motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; gear drives for regulation and control of torque and speed in electric motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; safety brakes for electric and non-hydraulic machines or electric non-hydraulic motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; electro-mechanical brakes for electric and non-hydraulic machines or electric non-hydraulic motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots
(2) Computers for regulation and control of electric current, torque, moment, and speed in non-hydraulic and non-pneumatic machines excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; safety devices comprised of computers for regulation and control of electric current, torque, moment, and speed in non-hydraulic and nonpneumatic motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; electric apparatus and instruments for safety devices for avoidance of damages on persons, machines or goods, namely, sensors and detector units, transmitters of electric signals, and control devices for electrical motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; computer software for regulation of micro controllers excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; Computer software for the regulation of microcontrollers, computer software for regulation and control of non-hydraulic and non-pneumatic motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; computer hardware for regulation and control of motors excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; computer software for the regulation of safety devices comprised of computers, sensors for detecting torque, movement of electric motors for machines, emergency signal transmitters, electrical controllers for controlling electric motors for machines for electric motors and the avoidance of damages to persons, machines or goods excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; computer hardware for safety devices for avoidance of damages on persons, machines or goods excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; computer network interface devices, namely, field buses excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; printed electronic circuit cards excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots; Chargers for electric accumulators excluding for use in connection with electric welding machines other than as integrated electronic or non-hydraulic drive components for use in regulation, control of torque, speed or brakes in welding robots (1) Electrical engineering, computer engineering; industrial research and product development services in the field of electrical engineering
An assembly (110) for dissipating heat generated by a heat generating electrical component (16) which is surface mounted on a circuit board (11) in a surface mounting process. The assembly comprises a heat buffer (120) made of a thermally and electrically conducing material, and being surface mounted on the circuit board (11) so as to be soldered to a thermal flag (18) of the heat generating electrical component (16). The assembly further comprises a heat sink (12) in thermal contact with the heat buffer, and a galvanic separation (13) between the heat buffer and heat sink. The heat capacitance of the heat buffer can absorb short term increases in heat dissipation from the electrical component, before the heat is further dissipated to the galvanically separated heat sink. This may drastically improve performance of the surface mounted component.
H01L 21/48 - Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the groups or
H01L 23/40 - Mountings or securing means for detachable cooling or heating arrangements
Described are, among other things, an electric machine (10) and a housing (12) for an electric machine. The electric machine (10) is provided with a liquid cooling arrangement and comprises a housing (12). The housing (12) is formed as one unitary element and comprises a first space (30) in which first space (30) a stator (21) and a rotor (23) are located. The rotor (23) has a shaft (20). Further, a second space (50) is formed in the housing (12). In the second space (50) electronics (54) for operation of the electric machine is located. Also, a third space (40) is formed in the housing (12), the third space (40) is located, seen in axial direction of the shaft (20), between the first space (30) and the second space (50). The third space (40) comprises at least one inlet (18) for a cooling liquid and at least one outlet (28) for the cooling liquid.
A multiphase electric motor system and a method for controlling a multiphase electric motor system are disclosed. The method for controlling the multiphase electric motor system includes modulating a plurality of carrier signals with a plurality of modulation signals in order to generate a multiphase motor supply signal having a modulated phase signal for each phase of the electric motor. A set of time windows is defined in each period of the multiphase motor supply signal, where an individually selected group of modulated phase signals is modified by delaying the associated carrier signal in each time window, thereby generating a shifted multiphase motor supply signal and providing an efficient DC bus ripple reduction. Hereby, it is e.g. possible to use small filter capacitors/capacitor banks in electrical motor systems. An analogous multiphase electric generator system and method for controlling a multiphase electric generator system are disclosed.
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
H02M 1/14 - Arrangements for reducing ripples from DC input or output
H02M 7/5395 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters with automatic control of output wave form or frequency by pulse-width modulation
H02M 7/493 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
H02P 25/22 - Multiple windingsWindings for more than three phases
An optical bus system (1) having a start-up state and at least one operating state is disclosed. The optical bus system (1) includes a mechanical support structure (21) arranged to receive and hold a master module (2) having a downstream optical interface (3) and a set of slave modules (6) each having an upstream optical interface (7) and a downstream optical interface (8). The modules are attached to the mechanical support structure (21) such that optical interfaces of adjacent modules are aligned and in close proximity to each other in order to enable optical communication (24, 25) between adjacent modules. Each slave module (6) is further provided with circuitry to form one or two shunting signal paths (30, 31) depending on operating state after an addressing procedure is completed in the start-up state. Hereby, it is e.g. possible to realize a robust and cost-efficient optical bus system with high bandwidth capability.
An optical torque sensor (1) for measuring a torque on a rotating system having a shaft is presented. The optical torque sensor comprises two wedge prisms (3, 4) coupleable to an input portion and an output portion of the shaft. Furthermore, a light source (5) is arranged to emit a light beam through the wedge prisms toward an optical position sensor (6) which is arranged to receive the light beam and configured to provide a position signal indicative of a position of an incident light spot in the optical position sensor. The optical torque sensor further has control circuitry (30) configured to receive the position signal and to determine a torque value applied to the input portion based on this position signal. Hereby, a cost effective, robust, and compact optical torque sensor is presented, the sensor is particularly suitable for automotive applications such as power steering mechanisms. Also, a power steering system employing such an optical torque sensor is disclosed.
G01L 3/12 - Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating involving photoelectric means
An electrical motor system and a method for operating the electrical motor system are disclosed. The electrical motor system comprises a direct current (DC) source, a filter connected in parallel with the DC source and an electric motor with at least two sets of windings. A voltage signal is provided from the DC source to the inverter circuit where the signal is modulated. The modulated signal is then supplied from the inverter circuit to each set of windings with a respective time offset between each set of windings respectively, providing a very efficient DC bus ripple reduction. Hereby, it is e.g. possible to use small filter capacitors/capacitor banks in electrical motor systems.
H02M 3/335 - Conversion of DC power input into DC power output with intermediate conversion into AC by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate AC using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
H02M 1/14 - Arrangements for reducing ripples from DC input or output
H02M 7/521 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only in a bridge configuration
H02M 7/523 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with LC-resonance circuit in the main circuit
14.
DC BUS RIPPLE ELIMINATION FOR MULTIPHASE ELECTRIC MACHINES
A multiphase electric motor system and a method for controlling a multiphase electric motor system are disclosed. The method for controlling the multiphase electric motor system includes modulating a plurality of carrier signals with a plurality of modulation signals in order to generate a multiphase motor supply signal having a modulated phase signal for each phase of the electric motor. A set of time windows is defined in each period of the multiphase motor supply signal, where an individually selected group of modulated phase signals is modified by delaying the associated carrier signal in each time window, thereby generating a shifted multiphase motor supply signal and providing an efficient DC bus ripple reduction. Hereby, it is e.g. possible to use small filter capacitors/capacitor banks in electrical motor systems. An analogous multiphase electric generator system and method for controlling a multiphase electric generator system are disclosed.
H02M 1/14 - Arrangements for reducing ripples from DC input or output
H02M 7/493 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode the static converters being arranged for operation in parallel
H02P 27/08 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters with pulse width modulation
Described are, among other things, an electric machine (10) and a housing (12) for an electric machine. The electric machine (10) is provided with a liquid cooling arrangement and comprises a housing (12). The housing (12) is formed as one unitary element and comprises a first space (30) in which first space (30) a stator (21) and a rotor (23) are located. The rotor (23) has a shaft (20). Further,a second space (50) is formed in the housing (12). In the second space (50) electronics (54) for operation of the electric machine is located. Also, a third space (40) is formed in the housing (12), the third space (40) is located, seen in axial direction of the shaft (20),between the first space (30) and the second space (50). The third space (40) comprises at least one inlet (18) for a cooling liquid and at least one outlet (28) for the cooling liquid.
An optical bus system (1) having a start-up state and at least one operating state is disclosed. The optical bus system (1) includes a mechanical support structure (21) arranged to receive and hold a master module (2) having a downstream optical interface (3) and a set of slave modules (6) each having an upstream optical interface (7) and a downstream optical interface (8). The modules are attached to the mechanical support structure (21) such that optical interfaces of adjacent modules are aligned and in close proximity to each other in order to enable optical communication (24, 25) between adjacent modules. Each slave module (6) is further provided with circuitry to form one or two shunting signal paths (30, 31) depending on operating state after an addressing procedure is completed in the start-up state. Hereby, it is e.g. possible to realize a robust and cost-efficient optical bus system with high bandwidth capability.
An electrical motor system and a method for operating the electrical motor system are disclosed. The electrical motor system comprises a direct current (DC) source, a filter connected in parallel with the DC source and an electric motor with at least two sets of windings. A voltage signal is provided from the DC source to the inverter circuit where the signal is modulated. The modulated signal is then supplied from the inverter circuit to each set of windings with a respective time offset between each set of windings respectively, providing a very efficient DC bus ripple reduction. Hereby, it is e.g. possible to use small filter capacitors/capacitor banks in electrical motor systems.
H02P 27/06 - Arrangements or methods for the control of AC motors characterised by the kind of supply voltage using variable-frequency supply voltage, e.g. inverter or converter supply voltage using DC to AC converters or inverters
H02M 7/48 - Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Motors; electric motors; integral motors; non-hydraulic
drives for motors; non-hydraulic drives for electric motors;
electric drives for regulation and control of torque and
speed in electric motors; safety brakes for electric and
non-hydraulic machines or electric non-hydraulic motors;
electro-mechanical brakes for electric and non-hydraulic
machines or electric non-hydraulic motors; all the goods
listed above not for use for welding machines as such nor in
connection with welding other than as integrated electronic
or non-hydraulic drive components for regulation, control of
torque, speed or brakes in welding robots. Electric apparatus and instruments for regulation and
control of machines, electric apparatus and instruments for
regulation and control of motors, electric apparatus and
instruments for safety devices for avoidance of damages on
persons, machines or goods; computer software, computer
software for regulation and control of motors; computer
hardware for regulation and control of motors; computer
software for safety devices for avoidance of damages on
persons, machines or goods; computer hardware for safety
devices for avoidance of damages on persons, machines or
goods; field buses; printed circuit cards; battery chargers;
all the goods listed above not for use for welding machines
as such nor in connection with welding other than as
integrated electronic or non-hydraulic drive components for
regulation, control of torque, speed or brakes in welding
robots. Engineering services; industrial research and development
services.
09 - Scientific and electric apparatus and instruments
42 - Scientific, technological and industrial services, research and design
Goods & Services
Motors; electric motors; integral motors; non-hydraulic drives for motors; non-hydraulic drives for electric motors; electric drives for regulation and control of torque and speed in electric motors; safety brakes for electric and non-hydraulic machines or electric non-hydraulic motors; electro-mechanical brakes for electric and non-hydraulic machines or electric non-hydraulic motors; all the goods listed above not for use for welding machines as such nor in connection with welding other than as integrated electronic or non-hydraulic drive components for regulation, control of torque, speed or brakes in welding robots. Electric apparatus and instruments for regulation and control of machines, electric apparatus and instruments for regulation and control of motors, electric apparatus and instruments for safety devices for avoidance of damages on persons, machines or goods; computer software, computer software for regulation and control of motors; computer hardware for regulation and control of motors; computer software for safety devices for avoidance of damages on persons, machines or goods; computer hardware for safety devices for avoidance of damages on persons, machines or goods; field buses; printed circuit cards; battery chargers; all the goods listed above not for use for welding machines as such nor in connection with welding other than as integrated electronic or non-hydraulic drive components for regulation, control of torque, speed or brakes in welding robots. Engineering services; research services; development services.
20.
CONTROL CIRCUITRY FOR CONTROLLING A SEMICONDUCTOR SWITCH
The present invention relates to an electrical control circuitry configured to provide a control signal for switching a semiconductor switch between a conductive state and a non-conductive state, the semiconductor switch arranged to supply electrical power from a power source to a load connected to an output terminal of the semiconductor switch, wherein the electrical control circuitry is configured to switching, using the control signal, the semiconductor switch from the non-conductive state to the conductive state, the control signal having a first predefined slew rate, determining an electrical peak current level in at least one of the load and the semiconductor switch, comparing the electrical peak current level with a predefine maximum peak current level, switching, using the control signal, the semiconductor switch from the conductive state to the non-conductive state if the electrical peak current level is above the predefined peak current level, the control signal having a second predefined slew rate, the second predefined slew-rate being higher than the first predefined slew rate, and switching, using the control signal, the semiconductor switch from the non-conductive state to the conductive state, the control signal having a second predefined slew rate.
An embodiment of the present invention discloses an apparatus for recyclable absorption of electric retardation energy from a multiple axis industrial robotics system, including a robot control unit and at least one drive unit, which generates the electrical retardation energy at retardation. By an apparatus according to the present invention, the electric retardation energy, which occurs when a drive unit is retarded and is transferred into generator mode, may be recycled by the brake unit of the apparatus, which accelerates a mechanical device connected to the brake unit. The electric retardation energy is thus transferred into kinetic energy that may be stored in mechanical devices. An embodiment of the present invention also refers to a corresponding method for recyclable absorption of electric retardation energy from a multiple axis industrial robotics system.
H02P 3/26 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing an AC motor by combined electrical and mechanical braking
B25J 19/00 - Accessories fitted to manipulators, e.g. for monitoring, for viewingSafety devices combined with or specially adapted for use in connection with manipulators
H02P 3/14 - Arrangements for stopping or slowing electric motors, generators, or dynamo-electric converters for stopping or slowing an individual dynamo-electric motor or dynamo-electric converter for stopping or slowing a DC motor by regenerative braking
