Abstract: A method determines a current flowing through at least one switching element of an electrical circuit arrangement. When the switching element is turned on the current flows through a switchable portion of the switching element. The switching element is associated with a temperature sensor and a voltage sensor. The temperature sensor measures a temperature of the switching element and the voltage sensor measures a voltage drop across the switchable portion of the switching element. The temperature sensor and the voltage sensor are connected to a computing device. The computing device determines a current value of the current based on the measured temperature and the measured voltage drop.

Abstract: A system for exchanging electrical energy between an electrical energy source and an electrical energy store of a vehicle, wherein the system includes an electrical connection, at least one electronic component, and a cooling device having a heat transfer medium, wherein, when the electrical energy store of the vehicle is connected to the electrical connection and electrical energy is exchanged between the energy source and the electrical energy store via the at least one electronic component, the heat transfer medium of the cooling device is designed to provide heat, which arises during the exchange of electrical energy in the system, to a consumer of the heat, which is coupled to the system and is arranged in a building.

Abstract: Power electronics arrangement including a printed circuit board and at least one power module fastened on the printed circuit board, which has one or more electronic components potted by a potting compound. At least one module connecting point of the power module is electrically contacted with at least one board connecting point of the printed circuit board by an electrically conductive pin. A base section of the pin is fastened on the module connecting point or on the board connecting point, and the end of the pin opposite to the base section is pressed in the installation position into a contacting opening assigned or assignable to the respective other connecting point.

Abstract: A converter with a half bridge circuit with at least one active half bridge branch, of which the phase connection in each case is connected via a respective switching device to a respective reference potential. A control device of the converter is configured to alternatingly conductively and non-conductively switch the respective switching device. The first and second switching device in each case includes a parallel connection of at least one transistor of a first type and at least one transistor of a second type.

Abstract: A power electronics arrangement for a motor vehicle comprises at least one power electronics circuit having at least one temporary storage for electrical energy, a discharge circuit associated with the power electronics circuit for discharging the temporary storage, having a discharge resistance, and a cooling device for cooling the power electronics arrangement, wherein the cooling device comprises a metallic cooling sink, the cooling sink being covered at least partly by an electrically insulating insulator layer, on which the discharge resistance is arranged as a conductor track.

Abstract: A half-bridge module having two switching units, each of which includes multiple transistors connected in parallel and/or in series, in particular IGBTs or MOSFETs. The transistors are arranged on a first substrate. The half-bridge module has a temperature sensor matrix having a plurality of temperature sensors, and the temperature sensors are thermally connected to the transistors at least in some regions. A temperature sensor matrix is also provided.

Abstract: An energy system for an electrically-driven vehicle is provided along with methods for operating the energy system. The energy system has a low-voltage charging function and an active load-balancing system for traction batteries.

Abstract: A bidirectional DC charging station is provided for wall mounting (DC wallbox) for a private sphere, to which a plurality of electric vehicles can be connected in parallel. A method for operating the DC wallbox is also provided.

Abstract: A method for testing a charging process of an electrically powered motor vehicle having an on-board power system, wherein said on-board power system includes at least one charge connection for connecting the on-board power system to a charging station and is connected to at least one electric power storage device, wherein an adapter having at least one discharge connection is additionally connected to the on-board power system for testing the charging process, wherein electric power for testing the charging process is conducted via the at least one charge connection into the on-board power system, wherein a primary portion of said electric power is discharged again from the on-board power system via the at least one discharge connection of the adapter.

Abstract: An arrangement which has at least one semiconductor module made of silicon carbide, a driver circuit for the at least one semiconductor module, and a cooling system, wherein the at least one semiconductor module and the driver circuit are arranged adjacent to one another, wherein the driver circuit is connected to the cooling system.

Abstract: A power module for electric drives is provided which comprises at least one exciter circuit with at least one power semiconductor, wherein the power module is molded and the exciter circuit with the at least one power semiconductor is integrated in the molded power module. A traction inverter is also provided which comprises a water-cooled main cooler, wherein the main cooler comprises a bearing surface which is configured to receive power modules, wherein the traction inverter comprises at least one molded power module, and wherein the main cooler forms a cooling connection which is configured to receive the molded power module on the main cooler.

Abstract: An energy system for an electrically-driven vehicle is provided along with methods for operating the energy system. The energy system has a low-voltage charging function and an active load-balancing system for traction batteries.

Abstract: A bidirectional DC charging station is provided for wall mounting (DC wallbox) for the private sphere, to which a plurality of electric vehicles can be connected in parallel. A method for operating the DC wallbox is also provided.

Abstract: A system for transferring electrical energy from a charging station to an electrical consumer including a charging plug connected to the charging station by a charging cable and a charging socket corresponding to the charging plug of the electrical consumer designed as a motor vehicle, wherein the motor vehicle is designed to receive a battery voltage at the charging socket and relay it, unchanged, to a vehicle battery, wherein the charging station is configured to receive a network voltage from a power grid and to relay it via a charging cable to the charging plug, and the charging plug is configured to convert the network voltage into the battery voltage by means of power electronics.

Abstract: A rotor for a synchronous machine of a motor vehicle includes an excitation coil configured to generate a magnetic field necessary for rotation of the rotor in a stator of the synchronous machine. The rotor also includes a supply circuit, to which energy is fed contactlessly such that the supply circuit supplies the excitation coil with the energy. The rotor also includes a demagnetization circuit configured to demagnetize the excitation coil, which, upon collapse of the energy supply of the excitation coil, diverts a current flowing through the excitation coil into a circuit branch in which at least one component for demagnetization is arranged, wherein the at least one component is also configured to perform a protection function to protect the supply circuit against an induced voltage generated at the excitation coil.

Abstract: A system for exchanging electrical energy between an electrical energy source and an electrical energy store of a vehicle, wherein the system includes an electrical connection, at least one electronic component, and a cooling device having a heat transfer medium, wherein, when the electrical energy store of the vehicle is connected to the electrical connection and electrical energy is exchanged between the energy source and the electrical energy store via the at least one electronic component, the heat transfer medium of the cooling device is designed to provide heat, which arises during the exchange of electrical energy in the system, to a consumer of the heat, which is coupled to the system and is arranged in a building.

Abstract: A method for testing a charging process of an electrically powered motor vehicle having an on-board power system, wherein said on-board power system includes at least one charge connection for connecting the on-board power system to a charging station and is connected to at least one electric power storage device, wherein an adapter having at least one discharge connection is additionally connected to the on-board power system for testing the charging process, wherein electric power for testing the charging process is conducted via the at least one charge connection into the on-board power system, wherein a primary portion of said electric power is discharged again from the on-board power system via the at least one discharge connection of the adapter.

Abstract: A mobile discharging device for an energy storage device of an electric vehicle and to a method for operating the device.

Abstract: A charging device for a motor vehicle, having a charging terminal for the energetic coupling to a motor-vehicle-external charging station, a high-voltage terminal for the electrical connection of the charging device to a high-voltage vehicle electrical system of the motor vehicle, and a charging device energy converter electrically coupled to the charging terminal and the high-voltage terminal. The charging device energy converter, for converting electrical energy between the charging terminal and the high-voltage terminal, has an electrical inductor as an electrical energy accumulator, which is at least partially formed as an electronic main coil. A low-voltage terminal for connection to a low-voltage vehicle electrical system of the motor vehicle and an electronic auxiliary coil, which is magnetically coupled to the main coil and electrically coupled to the low-voltage terminal and which is designed to provide electrical energy for the low-voltage vehicle electrical system.

Abstract: A battery for an electrically driven motor vehicle, including a plurality of battery cells which are interconnected to form respective cell clusters with a voltage of less than 60 Volt, each of them having an outside accessible connection for charging the cell cluster. A charging device for charging a battery of an electrically driven motor vehicle, having a charging interface with one respective plug connector for each cell cluster of the motor vehicle, the plug connector having a maximum charging voltage of less than 60 V.