1-kW PFC converter with compound active-clamping

被引：19

作者：

Feng, B ^{[1
]}

Xu, DH ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Elect Engn, Hangzhou 310027, Peoples R China

来源：

IEEE TRANSACTIONS ON POWER ELECTRONICS | 2005年 / 20卷 / 02期

基金：

中国国家自然科学基金;

关键词：

continuous-conduction-mode (CCM); distributed power systems (DPS); PFC converter;

D O I：

10.1109/TPEL.2004.843005

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

A PFC converter employing compound active clamping technique is proposed. It can effectively reduce the loss caused by diode reverse recovery. Both the main switch and the auxiliary switch can achieve soft-switching (ZVS) under certain condition. The parasitic oscillation caused by the parasitic capacitance of the boost diode is eliminated. The voltage on the main switch, the auxiliary switch and the boost diode are clamped. The principle of operation and theoretical analysis are presented. The maximum voltage stress of switches and the soft-switching region with relation to the resonant inductor and resonant capacitance are investigated. A prototype of 1 kW is built to test the proposed topology. The input voltage is from 90 V-rms to 265 V-rms. The output voltage is 380 V. The operation frequency is 100 kHz. The measured efficiency at full load with different input voltage is from 93.5% to 97.8%.

引用

页码：324 / 331

页数：8

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