Abstract: The invention relates to a circuit assembly, to a system and to a method for switching a high-voltage battery (201) and to a vehicle having such a circuit assembly and such a system. The circuit assembly comprises a transistor for conducting a current from the battery (201) to a load and comprises a diode (202) for conducting a return current into the battery (201). The circuit assembly is configured to provide a pre-charging current by means of the pulsed switching of the transistor (203).

Abstract: The invention relates to an electrical plug (24) having a connection unit (36) which can be coupled to an electrical line (26) in order to transmit electrical energy, having at least one electrical contact pin (30) which has a plug section (32) and a coupling section (34), wherein the coupling section (34) is electrically coupled to the connection unit (36), and wherein the plug section (32) is designed to provide a releasable plug connection to an associated contact socket (18) in order to electrically couple the contact pin (30) to the contact socket (18), and having a detection unit (38) which is designed to) detect a tensile force which is exerted on the contact pin (30) and/or a movement of the contact pin (30) relative to the contact socket (18), and to provide a disconnection signal for interrupting the energy transmission process.

Abstract: The invention relates to an energy supply system having an energy storage device. The energy storage device has a plurality of energy storage modules that are serially connected in at least one energy supply branch, each comprising an energy storage cell module having at least one energy storage cell, and a coupling device having coupling elements configured to selectively switch the energy storage cell module into the respective energy supply branch, or to circumvent same, and comprising a plurality of driver devices, each dedicated to one of the energy storage modules, and coupled to one of the energy storage modules, and which are configured to actuate the coupling elements of the coupling devices according to a driver signal.

Abstract: The invention relates to a multi-stage charging device for a battery of a battery operated electrical motor. The multistage charging device comprises a buck converter, an intermediate circuit and a boost converter in order to generate a suitable direct charging current from a (one or three-phase) alternating current provided by a power connection. According to the invention, components of the electrical drive are used for the boost converter and the intermediate circuit: the electrical motor functions as an intermediate circuit and the drive converter functions as a boost converter. According to the invention, the coupling of the electrical motor to the network-side buck converter occurs so that at least half the charging current flows through at least one of the at least three coils of the electrical drive. The invention further relates to a corresponding method and to a corresponding use of the drive components.

Abstract: The invention relates to an electrical plug (24) having a connection unit (36) which can be coupled to an electrical line (26) in order to transmit electrical energy, having at least one electrical contact pin (30) which has a plug section (32) and a coupling section (34), wherein the coupling section (34) is electrically coupled to the connection unit (36), and wherein the plug section (32) is designed to provide a releasable plug connection to an associated contact socket (18) in order to electrically couple the contact pin (30) to the contact socket (18), and having a detection unit (38) which is designed to) detect a tensile force which is exerted on the contact pin (30) and/or a movement of the contact pin (30) relative to the contact socket (18), and to provide a disconnection signal for interrupting the energy transmission process.

Abstract: The invention relates to an energy supply system having an energy storage device. The energy storage device has a plurality of energy storage modules that are serially connected in at least one energy supply branch, each comprising an energy storage cell module having at least one energy storage cell, and a coupling device having coupling elements configured to selectively switch the energy storage cell module into the respective energy supply branch, or to circumvent same, and comprising a plurality of driver devices, each dedicated to one of the energy storage modules, and coupled to one of the energy storage modules, and which are configured to actuate the coupling elements of the coupling devices according to a driver signal.

Abstract: The invention relates to a multi-stage charging device for a battery of a battery operated electrical motor. The multistage charging device comprises a buck converter, an intermediate circuit and a boost converter in order to generate a suitable direct charging current from a (one or three-phase) alternating current provided by a power connection. According to the invention, components of the electrical drive are used for the boost converter and the intermediate circuit: the electrical motor functions as an intermediate circuit and the drive converter functions as a boost converter. According to the invention, the coupling of the electrical motor to the network-side buck converter occurs so that at least half the charging current flows through at least one of the at least three coils of the electrical drive. The invention further relates to a corresponding method and to a corresponding use of the drive components.

Abstract: A method for protecting a microcomputer system against manipulation of its program, the microcomputer system including a rewritable memory in which at least part of the program is stored. A code word is generated on the basis of a start value, using at least part of the contents of the rewritable memory. For enhanced protection of the program against manipulation or tuning, the start value for generating the code word is preselected on a microcomputer-specific basis. The start value is also preselected as a function of the type of microcomputer system. The generated code word is checked in the microcomputer system, and execution of the program of the microcomputer system stored in the rewritable memory is blocked if the code word does not match a preselectable reference code word.