68 results about "Converter design" patented technology

A system and a method for generating an optimized power converter design based on one or more multimodal large language models (MLLMs) are disclosed. The system obtains structured design data, one or more user queries, one or more design parameters, and real-time power converter design data. The system performs a similarity matching between one or more embeddings associated with the structured design data, and the one or more user queries and the one or more design parameters to compute an utmost similarity score. The system retrieves one or more similar document chunks. The system processes the one or more user queries and the one or more design parameters to extract one or more parameters. The system determines one or more design workflows based on the one or more parameters. The system executes at least one design workflow. The system visualizes design outcomes, simulation results, and prediction results to a user.

The invention belongs to the field of power semiconductor devices, and discloses a dynamic current-sharing layout design method and system for a multi-chip parallel power module, and the method comprises two aspects of main power loop layout and wiring and driving loop layout and wiring. A main power loop is designed in a vertical commutation manner, and parallel chip source electrodes and drain electrodes are designed in an integrated manner, so that quasi-common-source-electrode inductors of the chips are consistent and integrated, and parallel dynamic current sharing of multiple gallium nitride chips is facilitated; wiring of the driving loop is in vertical commutation and is vertical to the main power loop, mutual inductance of the power loop to the driving loop is basically zero, and parallel dynamic current sharing of gallium nitride chips is facilitated; when the design is met and grid leading-out ends and Kelvin source leading-out ends of the four chips are symmetrical about the symmetry axis of the main power loop, the mutual inductance of the main power loop to a part of wiring from a drive to each chip grid is equal, and the mutual inductance of the main power loop to a wiring from a Kelvin source to a drive ground of each chip is also equal. And an excellent gallium nitride multi-chip parallel dynamic current sharing effect can be realized.

A multiport converter designed to supply direct current loads comprising one or more energy sources, a battery, a multiport DC-DC converter connected to the energy sources and to a load, an IoT device for communication and control of the system. The multiport DC-DC converter further comprises an energy management system for selectively controlling the charging or discharging of the battery and the amount of energy directed to the load based on predictions of energy generation from the energy sources, based on a load demand and based on optimized scenarios. The multiport converter is used in green hydrogen generation plants powered by renewable energy sources, such as wind and photovoltaic energy; and a system capable of self-managing and ensuring better use of energy from the sources and better efficiency of green hydrogen generation.

The invention discloses a multi-parameter collaborative optimization design method for a modular multilevel converter, and belongs to the technical field of modular multilevel converter design. In order to solve the problem of reasonable design of main parameters of the modular multilevel converter, a mathematical model of the modular multilevel converter is constructed; designing a capacitor voltage fluctuation model, a sub-module capacitor capacitance value model and a fluctuation quantity model, and analyzing the relationship between the capacitor voltage fluctuation and the operation condition and the relationship between the sub-module capacitor capacitance value and the operation condition; determining an upper limit value of the bridge arm inductance based on consideration of a system power operation range, determining a design initial value of the bridge arm inductance based on consideration of ring current suppression, determining a lower limit value of the bridge arm inductance based on consideration of resonance avoidance and fault current rise rate limitation, and obtaining a design range of the bridge arm inductance; adjusting the bridge arm inductance to obtain a design value of the designed bridge arm inductance; and according to the capacitance value of the sub-module capacitor and the design value of the designed bridge arm inductor, analyzing the peak voltage and the peak current of the power device IGBT to determine the parameter selection of the power device.

The present invention relates to the technical fields of alternating current power grid power flow control and power electronics. Disclosed is a method for designing main circuit parameters for a transformer-free multi-terminal flexible interconnection apparatus, comprising: carrying out MTSNOP main circuit parameter design by means of a series converter design and a parallel converter design; the series converter design comprises a design for a voltage and quantity, and a capacitance value, of a sub-module of a PFCM and a PBCM, and a bridge arm inductance design and an AC-side equivalent filter inductance design of the PFCM and the PBCM; the parallel converter design comprises a parallel CMI capacity design and sub-module voltage and quantity design, a parallel CMI sub-module capacitance value design, and a parallel CMI connection inductance design. The method of the present invention adopts a modular design with easy port expandability, allowing for adaptability to power systems of different scales. The reasonable parameter design effectively improves system transmission capacity, mitigates heavily loaded line problems, optimizes transmission power flow, effectively suppresses voltage fluctuations, and improves voltage quality.

The invention discloses a method for designing parameters of a main loop of a transformerless multi-terminal flexible interconnection device, and relates to the technical field of alternating-current power grid power flow control and power electronics, and the method comprises the steps: carrying out MTSNOP main loop parameter design through series converter design and parallel converter design; the design of the series converter comprises the design of the voltage, the number and the capacitance value of PFCM and PBCM submodules, the design of bridge arm inductors of the PFCM and the PBCM and the design of alternating current side equivalent filter inductors; the parallel converter design comprises parallel CMI capacity design, sub-module voltage and number design, parallel CMI sub-module capacitance value design and parallel CMI connection inductor design. According to the method, a modular design is adopted, ports are easy to expand, and the method can adapt to power systems of different scales; the reasonable parameter design can effectively improve the system transmission capacity, alleviate the line heavy load problem, optimize the transmission power flow, effectively inhibit the voltage fluctuation, and improve the voltage quality.

Electronic device comprising a rechargeable battery and a voltage- or current-controlled power converter (150) for charging the battery, wherein the power converter (150) is designed to provide electrical power at an output voltage V out to charge the battery at an output of the power converter (150) from electrical power at an input voltage V into be derived at an input of the power converter (150), wherein the power converter (150) comprises an inductor (L), a first sub-converter (110) with several first switches (S1, S2, S3, S4) and a first capacitor cell (C1), and a second sub-converter (120) with several second switches (S5, S6, S7, S8) and a second capacitor cell (C2); wherein the power converter (150) comprises only a single inductor for the first sub-converter and for the second sub-converter, and a controller; wherein the controller is configured to control the several first and the several second switches such that the first and the second sub-converter are operated in a nested manner, and wherein a commutation cycle of the power converter comprises: - a first phase, during which the first capacitor cell and the inductor are connected in series between the input and the output of the power converter (150), and during which the second capacitor cell and the inductor are connected in series in parallel with the output of the power converter (150); - a second phase, during which the first capacitor cell and the inductor are connected in series in parallel with the output of the power converter (150), and during which the second capacitor cell and the inductor are connected in series between the input and the output of the power converter (150); and - a third phase, during which the first and second capacitor cells are decoupled from the output of the power converter (150), during which the charge of the first and second capacitor cells remains unchanged, and during which the inductor is arranged between the input and the output of the power converter (150) or is connected in parallel to the output of the power converter (150), wherein the controller is designed to control the multiple first and second switches in such a way that the power converter is operated in the third phase following the first phase and / or following the second phase within one commutation cycle, and wherein The controller is designed to do the following: - Determining an output current I out at the end of the first phase and / or at the end of the second phase; - Control the several first and second switches during the third phase such that the inductor is then arranged between the input and the output of the power converter (150) when the output current I out at the end of the first phase and / or at the end of the second phase less than a reference current I ref is; and - Control the several first and second switches during the third phase such that the inductor is then connected in parallel to the output of the power converter (150) when the output current I out at the end of the first phase and / or at the end of the second phase greater than the reference current I ref is.

The present invention relates to the field of converter design, and provides a valley locking method and circuit for a converter. The valley locking method slows down the modulation speed of the PFM pulse frequency modulation unit by setting a hysteresis compensation link after the error signal; by comparing the opening valley position of the current cycle and the previous cycle, the threshold and hysteresis required for the valley switching of the next cycle are dynamically changed; specifically, if it is judged that the number of valleys in the current cycle has increased compared with the number of valleys in the previous cycle, the time threshold for the valley switching of the next cycle is delayed by a hysteresis time; if it is judged that the number of valleys in the current cycle has decreased compared with the number of valleys in the previous cycle, the time threshold for the valley switching of the next cycle is advanced by a hysteresis time. Different valleys correspond to different switching thresholds and hysteresis, so that a good locking effect can be achieved under different system parameters.

The utility model relates to a bidirectional buck-boost DC-DC converter. The converter comprises an input terminal; an output terminal; the two-stage conversion circuit is arranged between the input terminal and the output terminal, the first-stage conversion circuit is used for converting an input voltage received at the input terminal into an intermediate voltage, and the second-stage conversion circuit is used for converting the intermediate voltage into an output voltage at the output terminal; and a tank circuit disposed between the two stages of conversion circuits, the tank circuit including a super capacitor and a control switch, the control switch turning on the super capacitor in response to a voltage fluctuation at an output terminal of the bidirectional buck-boost DC-DC converter to stabilize an output voltage at the output terminal. According to the design of the DC-DC converter, the circuit structure is simplified, the cost is reduced, and the overall reliability of the conversion circuit is improved.

DEPCT67 The power converter kit includes: A converter designed to transform AC power fed from a power source. AC power is converted into DC power using a pair of primarily conductive wires; An inverter, which is designed to convert the DC power sent from the converter to... A pair of wires with a second conductor is used to provide AC power; and A capacitor which is connected between the conductive wires of a pair of conductive wires or between... A wire with a conductive second conductor. Where the carrier wave frequency for driving the inverting motor is set to fc, the allowed frequency is... The resonance of an LC filter circuit consisting of one or more reactors and a... The capacitor is set to fLC, and the maximum value of the inverter's output frequency is set to MAX(f0)MAX(f0). It will then be according to MAX(f0)6 times.

A precharging arrangement (10) for a multiphase power converter (20) is disclosed in this document. The multiphase power converter (20), optionally an H-bridge power converter, is designed to be supplied by a multiphase AC power supply (40) via an input filter (30). The multiphase power converter (20) is designed to be connected to and disconnected from the multiphase AC power supply (40) by a first power switch (35). The precharging arrangement (10) comprises an AC power supply (12) which is connected via a transformer (14) having a primary side (14A) and a secondary side (14B) between a first common point (39) of the input filter (30) and a second common point (29) of the multi-phase power converter (20) for precharging DC link capacitors (25) of the multi-phase power converter (20), and a second power switch (15) for connecting and disconnecting the precharging arrangement (10).

There is provided a power electronic device for driving a switched reluctance motor, comprising: a plurality of phase legs, each phase leg comprising a phase winding, in which the plurality of phase legs are connected in series to form a ring; and a main inverter having a plurality of inverter legs, in which the number of the plurality of legs is equal to the number of the plurality of phase legs, in which each leg of the plurality of legs is connected to two of the plurality of phase legs at a switch node and each of the plurality of phase legs is connected to two of the plurality of legs, and in which each of the plurality of phase legs is connected to two of the plurality of legs, and in which the number of the plurality of legs is equal to the number of the plurality of phase legs. At least one of the phase legs includes at least one voltage source connected in series with a respective phase winding.

This invention relates to the field of power converter technology and discloses an interleaved power converter device based on gallium nitride devices. The device includes a power converter body with multiple sets of connectors on its surface. An auxiliary device is also provided on the surface of the power converter body, including side plates located on both sides of the power converter body. In this invention, by providing the auxiliary device, in the non-heat dissipation state, a reset spring drives a shielding ring to reset, sealing the through-hole and preventing dust intrusion. The miniature hollow tube and filter screen form a micro-ventilation channel, allowing air to circulate slowly inside the device, reducing localized heat accumulation in a sealed environment and mitigating the problems of large diameter, dust-prone, and small diameter, poor heat dissipation associated with traditional fixed heat dissipation holes. During heat dissipation, a drive component moves a control component, squeezing multiple sets of moving plates. These moving plates move the miniature hollow tube and shielding ring, causing the through-hole to fold, enabling rapid exhaust operation.

The application relates to the field of digital-to-analog converter design, in particular to a VCM type lower plate sampling CDAC circuit and a switching circuit thereof, a first capacitor array, a second capacitor array, a first switch group, a second switch group and a comparator; wherein the first switch group and the second switch group adopt time sequence controlled multi-selection switches, have natural advantages of reducing the risk of short circuit and glitch of a reference end; unified switch matrix and complementary control are easier to realize injection offset and equivalent capacitor balance, reduce voltage disturbance return to the VCM / VREF during switching of the lower plate, and improve the linearity of the circuit.

A converter system (1) for a vehicle (3) is specified, comprising - a large number of first converters (8), wherein - at least some of the first converters (8) are connected in parallel to each other, - the first converters (8) are designed to be connected at a first side (6) to a traction battery (5) of the vehicle (3), - the first converters (8) are designed to be connected to an electronic on-board network (4) of the vehicle (3) on a second side (7) opposite the first side (6), and - the first converters (8) are designed to provide a quiescent current in a standby mode of the vehicle (3) to the electronic on-board network (4) of the vehicle (3). Furthermore, a system (2), a vehicle (3) and a method for controlling the converter system (1) are specified.

ELECTRICAL POWER DISTRIBUTION SYSTEM AND ALLOCATION METHOD FOR ELECTRICAL POWER DISTRIBUTION Electrical power distribution system comprising at least one current converter module including a current converter designed to convert an alternating electrical voltage from one or more alternating voltage sources into a direct electrical voltage and to provide direct current electrical power up to a maximum module power value and having adjustable maximum power values ​​at a plurality of electrical output interfaces of the current converter module.The power distribution system further includes a power profile management device which is coupled to the current converter and is designed to negotiate, with electrical consumers that can be connected to respective output interfaces of the plurality of electrical output interfaces, individual power profiles according to which electrical power up to a maximum negotiated power value is supplied to the consumers by the current converter through the electrical output interface and which are stored in a power profile memory of the power profile management device.The power profile management system is configured to detect the actual instantaneous power consumption of connected loads with which an individually negotiated power profile already exists, to calculate, for each individually negotiated power profile, a power reserve value for the current converter as the difference between the maximum negotiated power value and the actual instantaneous power consumption, and to negotiate, with one or more of the electrical loads whose power reserve value exceeds an adjustable reserve threshold value, a new power profile with a maximum power value lower than the negotiated value when the sum of the maximum negotiated power values ​​exceeds the module's maximum power value. Figure to be published with the abstract: Fig. 1.

The application relates to a modular energy storage converter and belongs to the technical field of converter design. The application divides the electrical elements into electrical elements with large heat generation and electrical elements with small heat generation according to the different heat generation of the electrical elements of the energy storage converter, and the electrical elements are arranged in different zones, the electrical elements with large heat generation are arranged on the other side of the circuit board and are cooled by the cooling fan, and the electrical elements with small heat generation are arranged on one side of the circuit board and are naturally cooled without the auxiliary cooling device, so that the number of the cooling fans is saved, the cost is reduced, the volume of the energy storage converter is reduced, and the power density is improved.

The invention belongs to the technical field of integrated photoelectronics, and particularly relates to a design method of a photon mode converter with high manufacturing tolerance and wide working bandwidth. The method comprises the following steps: S1, quantitatively characterizing a sensitive area and a tolerance boundary; s2, applying a security boundary design criterion; and S3, collaborative optimization under constraint. The method aims at solving the problems that in the prior art, a photon mode converter is sensitive to manufacturing process deviation and narrow in working bandwidth. According to the method for designing the photon mode converter with the high manufacturing tolerance and the wide working bandwidth, the manufacturing tolerance and the working bandwidth serve as preposed constraint conditions at the beginning of design, and therefore predictable high robustness is achieved.

Charger arrangement (23) which has a control unit (28), a charger (30) and a housing (231), which charger (30) has first connections (321), an AC / DC converter (32), a DC intermediate circuit (34), a first DC / DC converter (36) and second connections (363, 364), which housing (231) contains the control unit (28) and the charger (30), which control unit (28) is designed to control the AC / DC converter (32) and the battery contactor arrangement (40), and on which DC intermediate circuit (34) DC consumer connections (51, 52, 53, 54) for connecting DC consumers (55, 56, 57, 58) are provided, characterized in that a battery contactor arrangement (40) is provided in the housing (231), which has third connections (401, 402) and fourth terminals (403, 404) and can be controlled by the control unit (28), wherein the first DC / DC converter (36) is designed as a bidirectional DC / DC converter (36),in a charging mode, to enable a conversion of a first DC voltage at the DC intermediate circuit (34) into a second DC voltage at the second terminals (363, 364), and in a consumption mode, to enable a conversion of a third DC voltage at the second terminals (363, 364) into a fourth voltage at the DC intermediate circuit (34), and which control unit (28) is designed to enable a corresponding control of the first DC / DC converter (36), wherein the control unit (28) has a voltage regulator (282), which voltage regulator (282) is designed to regulate the voltage at the DC intermediate circuit (34) to a voltage target value in the consumption mode, in order to thereby enable a determination / setting of the fourth voltage by the voltage regulator (282).

To reduce overall power consumption for an electronic display power management integrated circuit (PMIC), one of multiple electric power converters and / or electric power regulators may be selected based on an electrical load (e.g., due to the total brightness of the content displayed) on the electronic display at a given moment. In some embodiments, the PMIC may include a less efficient heavy load converter designed with high-current handling capability and a more efficient light load (e.g., low current) converter with lower current handling capability. A controller may dynamically select between the converters depending on a present load or an expected load on the electronic display.

The invention relates to a traction network (1) for a motor vehicle, comprising at least one high-voltage battery (2), a DC / DC converter (11), an intermediate circuit capacitor (C) consisting of at least two capacitors (C1, C2) connected in series and having a neutral point (N), an inverter (3) and a three-phase AC charging interface (6), the three AC charging lines (L1-L3) are connected to an AC voltage filter (7), the inverter (3) having three half-bridges (H1-H3), each half-bridge (H1-H3) being associated with a monolithic bidirectional field-effect transistor (10), the high-voltage-side transistor of the bidirectional field-effect transistor (10) being connected to the center tap (M) of the associated half-bridge (H1-H3), and the high-voltage-side transistor of the bidirectional field-effect transistor (10) being connected to the center tap (M) of the associated half-bridge (H1-H3). The DC / DC converter is characterized in that low-voltage side transistors of the bidirectional field effect transistors (10) are each connected to a neutral point (N) of an intermediate circuit capacitor (C), three AC charging lines (L1-L3) are connected to a center tap (M) of the half bridges (H1-H3), and the DC / DC converter is designed as an electrically isolated DC / DC converter.

A multiphase power inverter containing several X-type multistage power converters designed to transfer electrical power between a high-voltage direct current (HVDC) supply and an electrical machine. Each of the multiple X-type multistage power converters is configured as a solid-state integrated circuit (SEC) containing folded branches that include multiple semiconductor switches and clamping diodes. The multiple semiconductor switches, a positive DC power bus, a negative DC power bus, a first AC bus, a second AC bus, a third AC bus, a fourth AC bus, and the clamping diodes are arranged in multiple stages.Such that both the positive DC power bus and the negative DC power bus are parallel to the neutral bus, which generates mutual inductance rejection that minimizes parasitic inductance by coupling the positive mutual inductance and the negative mutual inductance for commutation loop currents in each of the X-type multi-stage converters.

A heat transfer system includes a first electrocaloric module comprising a first electrocaloric material, a first high-side electrode, and a first low-side electrode, arranged to impart an electric field to the electrocaloric material; a second electrocaloric module comprising a second electrocaloric material, a second high-side electrode, and a second low-side electrode, arranged to impart an electric field to the electrocaloric material; a power convertor including a power source configured to supply power to a high side bus and a low side bus; a controller configured to operate the power convertor through a plurality of stages.

The utility model belongs to the field of converter design, and relates to a DCDC output voltage dynamic regulation circuit based on MCU and DAC regulation, which comprises an MCU, a DCDC converter and a control circuit, a pin 14 of the MCU and a pin 8 of the DCDC converter are connected with the control circuit; a pin 14 of the MCU is a pin PA, and a pin 8 of the DCDC converter is a pin FB; the control circuit comprises a first resistor, a triode, a second resistor and a third resistor; the utility model provides a simple, economical and efficient solution which is suitable for cost-sensitive applications. A user can flexibly adjust the output voltage, the requirements of different application scenes are met, and the adaptability of the system is improved. The circuit design is simplified, and complex circuit design and software support are not needed. The implementation is easier, the development difficulty and time cost are reduced, and large-scale production and application are facilitated. The method is not limited by specific application, a universal solution is provided, and the market competitiveness of the product is enhanced.

The invention relates to a drive system (1, 1') for operating a traction motor (6) of an electric vehicle, comprising; - a vehicle battery (2), - an intermediate circuit capacitor (3) in an intermediate circuit connected to the vehicle battery (2) so that an intermediate circuit voltage (U dc ) essentially the battery voltage (U Bat ) corresponds to the vehicle battery (2); - a charging circuit (7) with a supply DC / DC converter (73) configured to convert a supply DC voltage (U) buffered in a supply capacitor (72) HV ) to convert into the intermediate circuit voltage, wherein the supply DC / DC converter (73) is designed for bidirectional operation; - a power driver (4) designed to operate the traction motor (6) with electrical energy from the intermediate circuit; - a control unit (10) designed to operate the supply DC / DC converter (73) in reverse in the event of an overvoltage in the intermediate circuit, so that electrical energy is discharged from the intermediate circuit into the supply capacitor (72) and thus the intermediate circuit voltage (U) dc ) is reduced.

The invention discloses a double-pulse test method, which relates to the technical field of power module test, and comprises the following steps: S1, building a double-pulse test platform; s2, setting parameters; s3, executing a double-pulse test; s4, exporting test parameters; and S5, parameter verification. According to the double-pulse test method, by optimizing the design of a test platform, electromagnetic interference is effectively reduced, the accuracy of waveform and parameter measurement is ensured, the width of the first pulse and the test inductance are quantitatively calculated through a formula, it is guaranteed that the test current accurately reaches a target value, and a foundation is laid for switch parameter extraction; moreover, a test voltage increasing criterion, waveform monitoring key points and a verification process after driving parameter adjustment are defined, consistency and reliability of test results are ensured, finally parameters such as switching loss, voltage spike and delay time are comprehensively extracted, actual characteristics of the power module are directly reflected, and the test accuracy is improved. And a key reference is provided for converter design such as drive circuit optimization and heat dissipation design.

The invention relates to an LLC half-bridge resonant converter parameter design method and related equipment. The method comprises the following steps: S1, respectively obtaining weight coefficients of resonant inductor current and resonant capacitor alternating-current voltage amplitudes of the converter and normalization results corresponding to the resonant inductor current and the resonant capacitor alternating-current voltage amplitudes, and constructing a preset single objective function according to the weight coefficients and the normalization results; wherein the sum of the weight coefficients of the amplitude of the resonant inductor current and the amplitude of the resonant capacitor AC voltage is 1; and S2, obtaining a performance index corresponding to the converter, and carrying out iterative calculation according to the performance index and the preset single objective function by taking the design parameter corresponding to the converter as a variable, so as to obtain a corresponding design parameter when the preset single objective function is the minimum value as a final design parameter of the converter. Converter parameter design difficulty can be reduced, and converter design efficiency can be improved.

The present invention discloses a digital calibration method and device for an R-2R digital-to-analog converter, wherein the method includes: connecting each unit conversion unit between detection circuits to obtain a detection output signal corresponding to each unit conversion unit; obtaining the actual resistance value in each unit conversion unit based on the detection output signal and forming a resistance value set; obtaining a target output voltage based on an ideal digital input signal and an ideal resistance value set, and obtaining the actual digital input signal corresponding to each unit conversion unit when the error between the target output voltage and the actual output voltage is minimized through a minimum mean square error algorithm; thereby obtaining the calibrated actual output voltage, with the minimum error compared to the ideal output voltage. The present invention greatly reduces the accuracy requirements for analog device matching, making it possible to design low-cost digital-to-analog converters using advanced processes, and using relatively inexpensive devices to achieve digital calibration of R-2R digital-to-analog converters.

The invention discloses a soft switching DC-AC converter design based on a coupling inductor, which comprises a common full-bridge inverter, a duplex winding coupling inductor, an auxiliary inductor, two auxiliary switches, a DC power supply and a filter capacitor of an AC power supply. Wherein the double-winding coupling inductor has the effects that one group is used for generating an auxiliary voltage source, and the other group is used for a high-frequency filter. Wherein the auxiliary branch is composed of an auxiliary inductor # imgabs0 # and two auxiliary switches # imgabs1 # and # imgabs2 #, and high-frequency switching current of the full-bridge inverter can be transferred to the auxiliary branch, so that zero-voltage switching of a high-frequency bridge circuit switching tube of the inverter is realized, switching loss is reduced, and the efficiency of the converter is improved.

The invention relates to a traction network (1) for a motor vehicle, the traction network (1) having at least one high-voltage battery (2), an inverter (6), an electric machine (7), at least one intermediate circuit capacitor (C), a DC voltage charging interface (11) and an AC voltage charging interface, a rectifier (8) and a DC / DC converter (12) being arranged between the AC voltage charging interface and the high-voltage battery (2), the DC / DC converter (12) is also arranged between the high-voltage battery (2) and the inverter (6), the DC / DC converter (12) is designed as a bidirectional DC / DC converter (12), a cooling plate (20) is provided, and the cooling plate (20) is arranged between the high-voltage battery (2) and the inverter (6). At least the inverter (6), the DC / DC converter (12), the at least one intermediate circuit capacitor (C) and the rectifier (8) are arranged on a cooling plate (20) together with an inductance (L) associated with the rectifier.