High-voltage high-power gate-assisted turn-off thyristor for high-frequency use

The fast switching thyristor with an integrated rectifier-diode connected in antiparallel to the cathode-emitter junction of auxiliary thyristor has been made. This thyristor has the ratings of blocking voltage 1200 V, average current 400 A. The turn-off time of less than 6 µs can be obtained by applying -10 V gate bias. It has the interdigitated gate structure and the high-frequency current rating more than 500 A at 10 kHz.