The inverter changes battery DC voltage into AC signal with 20 kHz, which is distributed as power sources for different equipment in EV by the transformer. Using zero voltage switching the PDM converter allows low distortion synthesis of single AC for induction motor drive system. 高频谐振逆变器将电池组的直流电压逆变为20kHz的高频交流信号,由高频变压器分配给系统的各个部分,采用零电压开关技术的高频交流脉冲密度调制变频器作为变频电源驱动电机,推动车辆行驶。