Förfarande samt anordning för detekterande och hanterande av kortslutningsfenomen vid seriekpopplade släckbara krafthalvledare

摘要

In a method for handling a short-circuit situation occurring in a circuit having a plurality of power semiconductor devices of turn-off type connected in series after detection thereof, the voltage across the two electrodes (11, 12) of each individual power semiconductor device is measured and depending upon the magnitude thereof current is fed to or from the gate (9) of the individual power semiconductor device for individually regulating a turn-off process created thereby for each of the power semiconductor devices depending upon said voltage thereacross.