Light-Load Efficiency Improvement for Flyback Converter Based on Hybrid Clamp Circuit

被引:0
|
作者
Yau, Y. T. [1 ]
Jiang, W. Z. [2 ]
Hwu, K. I. [2 ]
机构
[1] Asian Power Devices Inc, Taoyuan, Taiwan
[2] Natl Taipei Univ Technol, Dept Elect Engn, Taipei, Taiwan
关键词
flyback converter; active clamp; passive clamp; transient voltage suppression;
D O I
暂无
中图分类号
TP301 [理论、方法];
学科分类号
081202 ;
摘要
A novel clamp circuit applied to the flyback converter is proposed to improve the efficiency of the active clamp flyback converter during light load. The proposed clamp circuit combines the active clamp circuit and the transient voltage suppression (TVS) circuit which belongs to the passive clamp circuit. Therefore, during light load, the MOSFET switch of the active clamp circuit is always turned off and TVS circuit is used to suppress the voltage spike whereas during heavy load, only the active clamp circuit is used to suppress the voltage spike. The experimental results show an approximately 5% increase in efficiency during light load as compared to the traditional active clamp flyback converter.
引用
收藏
页码:329 / 333
页数:5
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