transistor chopper

Gate turn of-thyristor chopper of static auxiliary system of metro No 1 is replaced by high voltage insulated gate bipolar transistor ( HVIGBT) chopper, which is presented in this article, to realize the home manufacture of static auxiliary system.

阐述了在地铁一号线车辆静止辅助系统中采用高压绝缘栅双极型晶体管（HVIGBT）斩波器替代门极可关断晶闸管（GT0）斩波器，以实现静止辅助系统的国产化。

By controlling the light wave-form of Xe lamp with insulated gate bipolar transistor ( IGBT) and using the periodic long-pulse chopper technology, a long pulsed medical Nd: YAG laser was designed.

运用绝缘栅双极型晶体管（IGBT）对泵浦氙灯进行斩波放电，并采用间歇式长脉冲斩波技术，设计了一套能发射和控制长脉冲激光的Nd：YAG激光器。