Motor vehicle, has full bridge circuit triggered by power supply control unit such that direct current voltage of polarity or direct current voltage of another polarity is selectively applied at common voltage supply line

摘要

The motor vehicle has two control devices (SG1, SG2) that are supplied with electrical power by a direct current voltage source (UB) via a common voltage supply line (L) that is connected with the source via a full bridge circuit. The circuit is triggered by a power supply control unit such that a direct current voltage of a polarity or a direct current voltage of another polarity is selectively applied at the supply line. The control devices are connected with diodes (D1, D2) such that the direct current voltage of the respective polarity is applied at the respective control device.