Abstract: An alternating current (AC) charging device for a motor vehicle may include: a neutral conductor; a phase conductor; a rectifier; a smoothing capacitor electrically connected to the rectifier; a mains connection; a precharge circuit arranged between the mains connection and the smoothing capacitor, the precharge circuit precharging the smoothing capacitor; and a second phase conductor electrically connected to the phase conductor by a cross-connection line. The neutral conductor and the phase conductor are connected to the rectifier. The precharge circuit is disposed in the neutral conductor.

Abstract: An AC charging device for a motor vehicle has a neutral conductor, at least one phase conductor, and at least one rectifier. The neutral conductor and the at least one phase conductor are connected to the rectifier, to which at least one smoothing capacitor is also connected. The AC charging device has a precharge circuit arranged between a mains connection and the at least one smoothing capacitor. The precharge circuit is designed to precharge the at least one smoothing capacitor. The precharge circuit has at least one transistor.

Abstract: An AC charging device for a motor vehicle has a neutral conductor, at least one phase conductor, and at least one rectifier. The neutral conductor and the phase conductor are connected to the rectifier and the rectifier is furthermore electrically connected to at least one smoothing capacitor. The AC charging device includes a precharge circuit arranged between a mains connection of the AC charging device and the smoothing capacitor. The precharge circuit is designed to precharge the smoothing capacitor. The phase conductor, in a connection section, is connected to at least one further phase conductor of the AC charging device by way of a cross-connection line, which has a cross-connection switch for disconnecting the phase conductor and the further phase conductor. The precharge circuit is arranged between a mains connection of a first phase conductor of the phase conductors and the connection section.

Abstract: The disclosure relates to a power circuit for power supply in an electrically driven vehicle. The power circuit includes a direct voltage connection, an electrical traction drive, and a DC/AC converter. The converter includes an alternating voltage side connected to the traction drive. A DC/DC converter of the power circuit includes two converter sides. The first converter side is connected to a direct voltage side of the DC/AC converter via a coupling point. The direct voltage connection is likewise connected to the coupling point. The disclosure further relates to a stationary energy supply system designed to be complementary and to connect to the power circuit.

Abstract: An AC charging device for a motor vehicle has a neutral conductor, at least one phase conductor, and at least one rectifier. The neutral conductor and the phase conductor are connected to the rectifier and the rectifier is furthermore electrically connected to at least one smoothing capacitor. The AC charging device includes a precharge circuit arranged between a mains connection of the AC charging device and the smoothing capacitor. The precharge circuit is designed to precharge the smoothing capacitor. The phase conductor, in a connection section, is connected to at least one further phase conductor of the AC charging device by way of a cross-connection line, which has a cross-connection switch for disconnecting the phase conductor and the further phase conductor. The precharge circuit is arranged between a mains connection of a first phase conductor of the phase conductors and the connection section.

Abstract: A vehicle-side circuit for supplying power in an electrically driven vehicle is provided. The power circuit includes an external AC voltage terminal; at least one DC/AC converter having an AC voltage side; and an electrical machine having a plurality of windings, each of which has a first tapping. The electrical machine is connected to the AC voltage side of the DC/AC converter. A switching device is connected to the plurality of windings and to a signal shaping filter having a plurality of first capacitors. The signal shaping filter is connected between the DC/AC converter and an external AC terminal. The switching device may interconnect the windings within the electrical machine or may connect the first tappings of the plurality of windings within the signal shaping filter to the plurality of first capacitors to form an at least third-order low-pass filter.

Abstract: AC charging device for a motor vehicle may include: a neutral conductor; a phase conductor; a rectifier; a smoothing capacitor electrically connected to the rectifier; a mains connection; a precharge circuit arranged between the mains connection and the smoothing capacitor, the precharge circuit precharging the smoothing capacitor; and a second phase conductor electrically connected to the phase conductor by a cross-connection line. The neutral conductor and the phase conductor are connected to the rectifier. The precharge circuit is disposed in the neutral conductor.

Abstract: An AC charging device for a motor vehicle has a neutral conductor, at least one phase conductor, and at least one rectifier. The neutral conductor and the phase conductor are connected to the rectifier, to which at least one smoothing capacitor is also connected. The AC charging device has a precharge circuit arranged between a mains connection and the smoothing capacitor. The precharge circuit is designed to precharge the smoothing capacitor. The precharge circuit has at least one transistor.

Abstract: A vehicle-side charging circuit for a vehicle with electric drive. The charging circuit comprises an AC connector, a controlled rectifier which is connected to the AC connector, an electric machine with at least one winding, a current converter which is connected to the electric machine, and an energy-storage-device connector. The at least one winding of the electric machine is coupled in series between the rectifier and the current converter. In an inverter mode the current converter is fed from the energy-storage device, and in a charging mode the current converter is from an external energy source via at least one series-connected winding of the electric machine and charges the electrical energy-storage device.

Abstract: A vehicle-side circuit for supplying power in an electrically driven vehicle is provided. The power circuit includes an external AC voltage terminal; at least one DC/AC converter having an AC voltage side; and an electrical machine having a plurality of windings, each of which has a first tapping. The electrical machine is connected to the AC voltage side of the DC/AC converter. A switching device is connected to the plurality of windings and to a signal shaping filter having a plurality of first capacitors. The signal shaping filter is connected between the DC/AC converter and an external AC terminal. The switching device may interconnect the windings within the electrical machine or may connect the first tappings of the plurality of windings within the signal shaping filter to the plurality of first capacitors to form an at least third-order low-pass filter.

Abstract: A vehicle-side charging circuit for a vehicle with electric drive. The charging circuit comprises an AC connector, a controlled rectifier which is connected to the AC connector, an electric machine with at least one winding, a current converter which is connected to the electric machine, and an energy-storage-device connector. The at least one winding of the electric machine is coupled in series between the rectifier and the current converter. In an inverter mode the current converter is fed from the energy-storage device, and in a charging mode the current converter is from an external energy source via at least one series-connected winding of the electric machine and charges the electrical energy-storage device.

Abstract: The disclosure relates to a power circuit for power supply in an electrically driven vehicle. The power circuit includes a direct voltage connection, an electrical traction drive, and a DC/AC converter. The converter includes an alternating voltage side connected to the traction drive. A DC/DC converter of the power circuit includes two converter sides. The first converter side is connected to a direct voltage side of the DC/AC converter via a coupling point. The direct voltage connection is likewise connected to the coupling point. The disclosure further relates to a stationary energy supply system designed to be complementary and to connect to the power circuit.

Abstract: The present invention specifies a converter for an electrical machine. A power circuit breaker (T1) comprises at least two semiconductor elements (9, 10) connected to one another to form said power circuit breaker. At least one control circuit (C1, C2, 14) is associated with the at least one power circuit breaker (T1) and is connected to a respective control input of each of the at least two semiconductor components (9, 10) in order to selectively switch the same on and off by means of respective switching signals (S1, S2). The switching signals (S1, S2) are generated on the basis of switching losses and conduction losses of the power circuit breaker (T1).

Abstract: The present invention specifies a converter for an electrical machine. A power circuit breaker (T1) comprises at least two semiconductor elements (9, 10) connected to one another to form said power circuit breaker. At least one control circuit (C1, C2, 14) is associated with the at least one power circuit breaker (T1) and is connected to a respective control input of each of the at least two semiconductor components (9, 10) in order to selectively switch the same on and off by means of respective switching signals (S1, S2). The switching signals (S1, S2) are generated on the basis of switching losses and conduction losses of the power circuit breaker (T1).

Abstract: A power factor correction stage comprising: an input terminal configured to receive an input signal; an output terminal configured to provide an output signal; a first converter stage and one or more further converter stages, wherein each of the converter stages is connected to the input terminal and the output terminal, and each converter stage comprises a switch; and a controller configured to operate the switches of the converter stages. The controller is configured to operate the switch of the one or more further converter stages at a period of time after operation of the switch of the first converter stage for a current switching cycle, wherein the period of time corresponds to a proportion of the switching frequency for an earlier switching cycle that does not correspond to substantially the period of the earlier switching cycle divided by the number of converter stages.

Abstract: A power factor correction stage comprising: an input terminal configured to receive an input signal; an output terminal configured to provide an output signal; a first converter stage and one or more further converter stages, wherein each of the converter stages is connected to the input terminal and the output terminal, and each converter stage comprises a switch; and a controller configured to operate the switches of the converter stages. The controller is configured to operate the switch of the one or more further converter stages at a period of time after operation of the switch of the first converter stage for a current switching cycle, wherein the period of time corresponds to a proportion of the switching frequency for an earlier switching cycle that does not correspond to substantially the period of the earlier switching cycle divided by the number of converter stages.