充电机电源开关管DS寄生振荡抑制的研究  

Study of Charger Power Supply Switch DS Parasitic Oscillation Suppression

作　　者：朱子庚 韩海伦 董钦 刘向立 

机构地区：[1]许继电源有限公司,河南许昌461000

出　　处：《电气传动》2016年第1期33-35,共3页Electric Drive

摘　　要：全桥移相软开关变换电路在电动汽车充电电源中得到了广泛的应用,该电路拓扑滞后桥臂开关管实现零电压开关所必要的死区时间参数不匹配,开关管的DS电压会产生寄生振荡,影响变换器的稳定性。给出原边开关管死区时间设计原则,有效抑制整流管的寄生振荡,分析变换器工作原理,得出了实验波形。The phase-shifted full-bridge zero-voltage-switching(PS-FB-ZVS)PWM converter is widely used in electric vehicle charging converter. In this circuit topology,the dead-time parameters do not match to lagging leg switches′ necessary to achieve zero-voltage switching. DS voltage of the switching will produce parasitic oscillation,Affect the stability of the converter. Primary side switch deadtime design principle was given,suppress parasitic oscillation of the rectifier effectively,the operation principle was analyzed,the experimental waveforms were also given at last.

关 键 词：死区时间 寄生振荡 零电压开关 

分 类 号：TM921[电气工程—电力电子与电力传动]