pulse gate

In this prescaler, no glitch generate at switching, due to the change of switching order. And nor gate is introduced in phase-switching-control circuit to avoid the generation of extra pulse completely.

本预分频器通过改变相位切换电路中的切换顺序，完全避免了切换产生的错误毛刺的产生；切换控制电路中采用或非门产生相位切换控制信号，有效防止了多余脉冲的产生。

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。

Low time jitters gate used for singling out one pulse from repetitive pulses

低时间晃动的重复脉冲单次化门电路

The scheme accomplishes range tracking by adopting three range gate tracking to make middle gate always centered at echo pulse center through feedback circuit and deviation calculation circuit.

该方案采用三波门跟踪，通过偏差计算电路和反馈控制电路使中间波门中心始终对准目标回波脉冲中心，完成距离跟踪。

The system adopted insulated gate bipolar transistor ( IGBT) as its main circuit and pulse-width modulating ( PWM) technology.

该系统采用IGBT（绝缘栅双极型晶体管）器件，PWM（脉宽调制）控制技术。