期刊名称：International Journal of Environmental Science and Development
印刷版ISSN：2010-0264
出版年度：2014
卷号：5
期号：1
页码：20-25
DOI：10.7763/IJESD.2014.V5.444
摘要：A new active soft switching circuit for Zero Voltage Switched Pulse Width Modulated (ZVS-PWM) full bridge converter is presented in this paper.The proposed circuit has two auxiliary circuit cells (Auxiliary circuit cell-1, Auxiliary circuit cell-2), one for each ground referred active switch.Auxiliary circuit cell consists of an active switch, a diode, a resonant inductor and a capacitor, and a coupled winding derived from main power transformer.Auxiliary circuit when gated properly creates zero voltage across the main switch during its turn-on.Winding coupled to the power transformer helps in resetting auxiliary inductor current to zero and hence turn-off of auxiliary switch is lossless.Steady state operation of proposed circuit with necessary analytical expressions is presented.Circuit simulation results of the proposed active soft switched ZVS-PWM full bridge converter are presented.
关键词：Zero voltage switching; active soft switching; ZVS PWM full bridge
