FESTKOERPER-NEBENSCHLUSSSCHALTKREIS FUER LECKSTROMLEISTUNGSSTEUERUNG

摘要

A solid state power controller including a switching device which has a first impedance in an ON state and a second, higher impedance in an OFF state is provided with a leakage current shunt circuit. The solid state power controller includes a control circuit for turning the switching device on and off. This control circuit is operatively associated with a shunt circuit operating means which turns the shunt circuit on following a transition of the switching device from an ON state to an OFF state and which renders the shunt circuit inoperative prior to a transition of the switching device from an OFF state to an ON state. The shunt circuit thereby acts to clamp the voltage appearing at a pair of solid state power controller load output terminals.