power turn-off

In the part of power devices with IGBT, the loss can be divided into four parts: conduction loss, off-state loss, turn-on loss and turn-off loss.

采用IGBT作为主功率开关元件，由功率开关元件引起的损耗主要有导通损耗、断态损耗、开通损耗和关断损耗。

So, how to improve the tradeoff relationship between turn-off time and forward voltage is a key problem in power devices.

因此，提高开关速度并改善正向导通电压和关断时间的折衷关系是这类器件的关键问题之一。

The key technique of transient electromagnetic transmitter is to resolve the problem about the turn-off time and linearity of current impulse on high power projecting.

如何在大功率、大电感情况下实现电流脉冲短关断延时和下降沿高线性度是瞬变电磁发射机的关键问题。