Analysis and design considerations of a load and line independent zero voltage switching full bridge DC/DC converter topology

被引:180
作者
Jain, PK [1 ]
Kang, W
Soin, H
Xi, YH
机构
[1] Queens Univ, Dept Elect Engn, Kingston, ON K7L 3N6, Canada
[2] Concordia Univ, Dept Elect Engn, Montreal, PQ H3G 1M8, Canada
[3] Astec Adv Power Supplies, Ottawa, ON, Canada
[4] EMS Technol Canada Ltd, Montreal, PQ, Canada
关键词
DC-DC converter; full bridge converter; soft switching; zero voltage switching;
D O I
10.1109/TPEL.2002.802181
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The analysis and design of a zero voltage switching (ZVS) full bridge dc/dc converter topology is presented in this paper. The converter topology presented here employs an asymmetrical auxiliary circuit consisting of a few passive components. With this auxiliary circuit, the full bridge converter can achieve ZVS independent of line and load conditions. The operating principle of the circuit is demonstrated, and the steady state analysis is performed. Based on the analysis, a, criterion for optimal design is given. Experiment and simulation on a 350-400 V to 55 V, 500 W prototype converter operated at 100 kHz verify the design and show an overall efficiency of greater than 97% at full load.
引用
收藏
页码:649 / 657
页数:9
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