A boost PFC rectifier with a passive lossless snubber circuit using coupled inductors methods

被引：0
|
作者：
Kim, Ho-Sung [1 ,2 ]
Baek, Ju-Won [2 ]
Jung, Jee-Hoon [2 ]
Kim, Jong-Hyun [2 ]
Ryu, Myung-Hyo [2 ]
Kim, Hee-Je [1 ]
机构：
[1] Pusan Natl Univ, Dept Elect & Elect Engn, Pusan, South Korea
[2] Korea Electrotechnol Res Inst, Power Convers & Control Res Ctr, HVDC Res Div, Chang Won, South Korea
来源：
2012 TWENTY-SEVENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2012年
关键词：
VOLTAGE;
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：
In this paper, a boost PFC rectifier with a novel passive lossless snubber circuit is proposed to minimize switching loss for high power applications. The proposed lossless snubber is composed of the coupled inductors merged to the boost inductor. The proposed lossless snubber compared with the conventional methods doesn't need additional inductor cores and reduces the extra cost for the soft switching operation. A new turn-on mechanism of the lossless snubber using coupled inductor is applied to reduce the reverse recovery loss of the output diode rectifier. During the turn-off operation, the lossless snubber is composed of a single capacitor and two diodes to reduce the voltage stress and the turn-off power loss. Due to the lossless clamping operation, the proposed PFC operates under soft switching conditions with high power conversion efficiency. The design and performance of the boost PFC rectifier using the proposed lossless snubber are verified by experimental results using a 3.3kW prototype rectifier.
引用
收藏
页码：1148 / 1152
页数：5
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