Outcome Improvement for Pilot Diode Reverse Conducting IGBTs through Selective Locking Time Reduction in Diode Mode

Pilot Diode (PD)-Reverse Conducting (RC)-IGBTs reverse-recovery and turn-on losses significantly depend on the system’s inverter locking time. Therefore, loss reduction is achievable by selectively reducing the inverter locking time in diode conduction mode. A sophisticated gate-control mechanism providing a safe and simple way to do so as well as high voltage simulations approving the method's functionality are presented.