Analysis, design, and implementation of a parallel ZVS converter

被引：48
作者：
Lin, Bor-Ren [1 ]
Huang, Chien-Lan [1 ]
Wan, Jin-Fa [1 ]
机构：
[1] Natl Yunlin Univ Sci & Technol, Dept Elect Engn, Yunlin 640, Taiwan
来源：
IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2008年 / 55卷 / 04期
关键词：
DC converters; half-bridge converter; zero-voltage switching (ZVS);
D O I：
10.1109/TIE.2007.910632
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
A soft-switching converter is presented in this paper to achieve a zero-voltage-switching (ZVS) turn on for all switches. Two half-bridge converters with asymmetric pulsewidth-modulation scheme are connected in parallel to control the output voltage at the desired value and achieve load-current sharing. Based on the output capacitance of power switches and the resonant inductance, including the external inductance and the transformer leakage inductance, the resonance can be achieved at the transition interval of power switches. Therefore, the ZVS turn on of power switches can be realized. The peak voltage of the power switches is limited to input dc voltage. The center-tapped rectifier is adopted at the transformer secondary side to achieve a full-wave rectification. Operation principles, steady-state analysis, and design equations of the proposed converter are discussed in detail. Finally, experimental results based on a 240-W prototype are provided to verify the performance and the feasibility of the proposed converter.
引用
收藏
页码：1586 / 1594
页数：9
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