A ZVZCS Full-Bridge DC/DC Converter with a Passive Auxiliary Circuit in the Primary Side
作者： Wuhua Li , Yanqun Shen , Yan Deng , Xiangning He
DOI: 10.1109/PESC.2006.1712116
关键词:
摘要: A ZVZCS full-bridge converter with phase-shift control is proposed in this paper. The ZCS condition of the lagging-leg achieved by using a simple auxiliary circuit, which resets primary-side current during freewheeling stage. operation can reduce switching losses and circulating conduction losses. circuit composed only small transformer two clamp diodes, inserted primary side main transformer. There are neither additional active switches nor resistors resetting circuit. prototype 1kW operating at 50kHz built lab to confirm effectiveness presented converter.
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