High current power output for use in controller of motor vehicle, has safety fuse that is triggered by current flowing through diode, where diode is arranged in direction of conduction when supply and reference potentials are interchanged

摘要

The output (PA) has four power transistors (T) each comprising a diode (D) that is blocked during normal operation of the respective transistor. A set of electrical supply lines couples the transistors with supply and reference potentials. A safety fuse (S) is triggered by a current that flows through the diode, where the diode is arranged in a direction of conduction when the supply and reference potentials are interchanged.