Research on Bridgeless Boost PFC with Soft-Switching

被引：0

作者：

Jiang, Shi-gong ^{[1
]}

Liu, Gui-hua ^{[1
]}

Wang, Wei ^{[1
]}

Xu, Dian-gou ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Elect Engn, Harbin 150006, Peoples R China

来源：

2009 IEEE VEHICLE POWER AND PROPULSION CONFERENCE, VOLS 1-3 | 2009年

关键词：

bridgeless Boost PFC; passive lossless snubber circuit; one-cycle control; efficiency; LOW CONDUCTION LOSSES; POWER-FACTOR; RECTIFIER;

D O I：

暂无

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：

Low conduction loss is the main advantage of bridgeless Boost PFC topology. In order to decrease switching loss and further improve efficiency, a bridgeless Boost PFC circuit with passive lossless snubber circuit is proposed. Using this snubber circuit, the power switches turn off with ZVS (zero voltage switching) and turn on with near ZCS (zero current switching) and the fast-recovery diodes operate at ZVS turn-on and turn-off. Prototype with one-cycle control chip IR1150 is designed after analyzing bridgeless Boost PFC and passive lossless snubber circuit. Experimental results verify that the snubber circuit can reduce switching dv/dt, di/dt and switching loss; the power factor is higher than 0.99 and the efficiency reaches 0.97 at 1.0kW.

引用

页码：1255 / 1258

页数：4

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