Abstract: A compensation device (20) for compensating for a discharge current has a compensation current generation device (28), a potential generation device (150), active conductor terminals (61, 62, 63, 64) and a PE conductor terminal (65), which active conductor terminals (61, 62, 63, 64) have a first active conductor terminal (61) and a second active conductor terminal (62; 64), which potential generation device (150) is interconnected with the first active conductor terminal (61) and has a potential generation device terminal (155), which potential generation device (150) is designed to provide a potential at the potential generation device terminal (155) which at least temporarily differs from the potential at the first active conductor terminal (61), and which compensation current generation device (28) is designed to effect a compensation current (I_COMP) between the potential generation device terminal (155) and the PE conductor terminal (65).

Abstract: A charging apparatus (2) for a vehicle (1) has a power section (3) and a control signal interface (4) for connecting control signals (102) to the power section (3). A filter circuit (5), in particular an EMC filter circuit, is arranged between the power section (3) and the control signal interface (4). A vehicle (1) having such a charging apparatus (2) also is provided.

Abstract: A device for filtering at least one signal has a first magnet core and at least one first coil. The first coil has a first coil connection, a second coil connection, a first coil element, a second coil element and a connecting section. The first coil connection is electrically connected to the second coil connection via the first coil element, the connecting section and the second coil element. The first coil element has a first coil axis and the second coil element has a second coil axis. The first coil axis and second coil axis are arranged parallel to and at a distance from one another. The first magnet core extends both through the first coil element and also through the second coil element.

Abstract: A compensation apparatus compensates for leakage currents on conductors that include active conductors. The apparats (20) has a differential current measuring apparatus (22), a power supply unit (60), a first signal generator (33), an output stage (28) and a supply apparatus (39). The differential current measuring apparatus (22) captures a first signal at a first location of the active conductors and supplies it to the first signal generator (33). The first signal characterizes differential current on the active conductors. The first signal generator (33) generates a second signal to compensate for the differential current from the first signal and supplies this second signal to the output stage (28). The output stage (28) injects a compensation current into at least one of the active conductors via the supply apparatus (39) on the basis of the second signal.

Abstract: A monitoring device for monitoring leakage currents at active conductors has a differential current measurement device, a signal generation device and a control device, which differential current measurement device is designed to record a first signal (I_DIFF) characterizing the differential current of the active conductors and to feed the first signal to the control device. The signal generation device is designed to generate at least one second signal (V_GRID) and to feed the second signal to the control device, which at least one second signal (V_GRID) includes information about the phase angle of a signal occurring at one of the active conductors. The control device is designed to generate a third signal (I_LC_RES) on the basis of the first signal (I_DIFF) and of the at least one second signal (V_GRID), which third signal characterizes the resistive leakage current.

Abstract: A compensation device for compensating leakage currents has a differential current measurement device, a first signal generation device, an amplifier and a feeder device. The first signal generation device is designed to generate a first compensation current specification signal (I_COMP_S1) suitable for the compensation from the first signal (I_DIFF) from the differential current measurement device by way of analog signal processing and to feed this first compensation current specification signal (I_COMP_S1) to the amplifier in analog or digitized form. The amplifier is designed to generate a compensation current (I_COMP) on the basis of the first compensation current specification signal (I_COMP_S1), and the feeder device is designed to allow the compensation current to be fed in at at least one of the active conductors.

Abstract: A communication unit or a vehicle has a control unit, a first connection, a second connection, a first switchable resistance bridge, a second switchable resistance bridge and a measuring apparatus for generating a measurement signal characterizing the voltage at the first resistance bridge. The first switchable resistance bridge and the second switchable resistance bridge are each provided between the first connection and the second connection and are connected in parallel with one another. The control unit has at least one first state and one second state, which first state corresponds to an active charging operation, and which second state occurs when the control unit in the first state receives an external abort signal via the first connection and the second connection. In the event of a change to the second state, the control unit turns off the first switch, turns off the second switch, and turns on the second switch.

Abstract: A compensation device (20) for compensating for leakage currents has a differential current measuring device (22), a supply network detection device (42; 45), a control device (26), an amplifier (27), a compensation current selection device (36) and a feed-in device (39, 41). The supply network detection device (42; 45) generates a second signal (V_GRID; V_ES) characterizing the supply network (L1, L2, L3, N) connected to the active conductors (51, 52, 53, 54) and to supply it to the control device (26). The compensation current selection device (36) feeds in the compensation current (I_COMP) on the basis of a third signal (V_SEL) on at least one of the at least two different active conductors (51, 54), and the third signal (V_SEL) is dependent on the second signal (V_GRID; V_ES) to select at least one active conductor (51, 54) suitable for the connected supply network for the feed-in operation.

Abstract: A monitoring apparatus has a control apparatus for monitoring a cooling apparatus for a power electronics arrangement. The control apparatus has an input and an output, which input is configured to receive a temperature signal from a temperature sensor, and to determine a temperature value depending on the temperature signal, and which output is configured to output an output signal. The control apparatus performs the following steps: ascertaining at least twice a temperature value and a time value assigned to the temperature value, ascertaining a difference quotient of the change in the temperature values to the change in the assigned time values, determining the state of the cooling apparatus of the power electronics arrangement depending on the ascertained difference quotient, outputting the output signal depending on the state in order to influence the power electronics arrangement.

Abstract: A rectifier assembly (20) for rectifying an AC voltage into a DC voltage has at least one first terminal (21, 22, 23), a second terminal (24) and an intermediate circuit (50). The first terminal (21, 22, 23) is connected via a circuit (31, 32, 33) to a neutral point (40), and the second terminal (24) is connected to the neutral point (40). The circuit arrangement (31, 32, 33) has a first branch (81) and a second branch (82) connected in parallel with the first branch (81). Both branches (81, 82) comprise a changeover arrangement (92, 93) and a coil (91, 94) connected in series with the changeover arrangement. The coil (91) in the first branch (81) is on the side of the changeover arrangement (92) averted from the neutral point (40), and the coil (94) in the second branch (82) is on the side facing the neutral point (40).

Abstract: A rectifier arrangement (20) for rectifying an AC voltage into a DC voltage has a first connection (21), a second connection (22), a third connection (23) and a fourth connection (24), which rectifier arrangement (20) has an intermediate circuit (50) with a first line (51), a second line (52) and a node point (53), which node point (53) is connected to the first line (51) via at least one first capacitor (61) and to the second line (52) via at least one second capacitor (62), which first connection (21), second connection (22) and third connection (23) are each connected to a star point (40) via an associated circuit arrangement (31, 32, 33), which fourth connection (24) is likewise connected to the star point (40), and which star point (40) is connected to the node point (53) via a controllable switch (45).

Abstract: A method is provided for implementing electric-shock protection in a transformer-free AC charging device (202). The method includes supplying an input end of the AC charging device (202) with alternating current from a charging socket (122), providing the output end of the AC charging device (202) with direct current (106) for charging a high-voltage battery, and using the peripheral charge controller (220) for controlling the charging socket (122). The peripheral charge controller (220) is arranged within a housing of the AC charging device (202).

Abstract: A method is provided for heat dissipation in a current compensation circuit (211, 221, 231) of a charger that charges a high-voltage battery. The charger is supplied with AC current from a charging cable on its input side and DC current for charging the high-voltage battery is provided by the charger on its output side. The charger does not have galvanic isolation and a leakage current is brought about by the AC current in at least one capacitor that is installed in the charger on the input side and connected to a protective conductor. The leakage current is compensated by the current compensation circuit (211, 221, 231) that is formed by power semiconductor electronics (211, 221, 231). Heat arising in the power semiconductor electronics (211, 221, 231) is dissipated by connecting the power semiconductor electronics to a carrier plate (212, 222, 232) within a housing of the charger (100).

Abstract: A charging apparatus (2) for a vehicle (1) has a power section (3) and a control signal interface (4) for connecting control signals (102) to the power section (3). A filter circuit (5), in particular an EMC filter circuit, is arranged between the power section (3) and the control signal interface (4). A vehicle (1) having such a charging apparatus (2) also is provided.

Abstract: A charging device for a vehicle is made available, which has two multi-pole connections, each of which can be coupled to a charging interface which is arranged on the vehicle. A power electronics module which is designed to convert alternating current into direct current is coupled to the two multi-pole connections. At least one measuring device which is designed to determine a parameter of the charging current is present at a pole of one of the two multi-pole connections during a charging process. An evaluation unit is coupled to the at least one measuring device and is designed to determine, on the basis of the parameter determined by the measuring device, whether the charging process is taking place by means of the first or by means of the second multi-pole connection.

Abstract: A charging plug for an electrically driven vehicle has a feed line for electrically connecting the charging plug to a charging infrastructure. The charging plug includes power contacts, a signal contact, a rectifier, and a control and protection device. The power contacts and signal contact electrically connect the charging plug to the vehicle. The rectifier is connected to the feed line and to the power contacts for converting an alternating current obtained by the feed line into a direct current that is delivered by the power contacts to the vehicle in a charging process. The control and protection device is connected to the feed line, to the power contacts and to the signal contact for matching the charging process to the vehicle by means of the signal contact.

Abstract: A method for charging a battery of a vehicle uses a battery charging station that provides an electric current at a first DC voltage. The electric current that is output by the battery charging station at the first DC voltage is supplied to a charger of the vehicle, The electric current at the first DC voltage is converted within the charger into a second electric current at a second DC voltage that is required for charging the battery of the vehicle, and then is supplied to the battery.

Abstract: A method for controlling a vehicle-external charging device for charging a vehicle. The charging device has an AC current grid having a neutral conductor, a protective conductor and at least one phase conductor, a protection and monitoring apparatus, and a DC current charging terminal. The vehicle includes a high-voltage on-board power system and an electrical energy storage element connected to the on-board power system. The method includes electrically connecting the on-board power system to the DC current charging terminal of the charging device, and detecting a protective conductor resistance between the neutral conductor and the protective conductor by feeding in a test current by way of the protection and monitoring apparatus. A frequency of the test current is either outside of a compensation frequency range of the protection and monitoring apparatus or within the compensation frequency range and is filtered out of the compensation frequency range on a narrowband basis.

Abstract: A method for reducing leakage currents in a protective conductor of an electricity network including a neutral conductor and a phase conductor in addition to the protective conductor. A differential current is determined depending on a phase conductor current in the phase conductor and a neutral conductor current in the neutral conductor. A compensation current is fed into the phase conductor and/or into the neutral conductor. The compensation current compensates for a leakage current caused by the differential current. Also described is a device for carrying out such a method.

Abstract: An electrical charging apparatus (10) for charging an electrical energy store of a motor vehicle (12) has an electrical connection (16) to electrically connect the charging apparatus (10) to a charging station (14) and to interchange electrical energy with the charging station (14). An electrical converter (18) is connected to the electrical connection (16) to interchange the electrical energy with the charging station (14) via the electrical connection (16) and to convert the electrical energy. A control unit (20) is connected to the electrical converter (18) to control the interchange of the electrical energy. A communication interface (22) is assigned to the control unit (20) and is designed to interchange data (34) with the charging station (14). The control unit (20) is designed to control the interchange of the electrical energy on the basis of the data.