Three IGBT short circuit types had been introduced.The short circuit type 2 had been enhanced through Brushes optimization of theIGBT transistor gain to withstand higher short circuit current.Additionally, the IGBT short circuit over current had been suppressed by thegate drive clamping design.
As a result, the high-voltage IGBT modules had successfully passed the short circuit testes Bronc Halter required by tractionapplication.