The push-pull output circuit made up of a pair of MOSFETs was used in the driver circuit. The Pspice simulation results indicated that the peak inverse voltage on MOSFET switch could be clamped by RCD. 利用Pspice软件对开关上有无剩余电流电路(RCD)两种情况进行仿真,结果表明,加装RCD电路可以有效吸收MOSFET在关断瞬间产生的反峰电压。