Characteristics of multi-chip pulse switching flat packaged 4500-V IEGT

We have tested the switching performance of a multichip flat packaged 4500-V injection enhanced gate transistor (IEGT) for the first time. The device contains 12 or 15 chips of 15 mm by 15 mm square IEGTs and 6 chips of the same sized free wheel diodes. To examine the short pulse and rectangular pulse switching performance, special test circuits were designed and constructed. As a result, 1) quite easy gate control, and 2) excellent performance for both short pulse and rectangular pulse switching were confirmed.