Quasi-resonant converters for high-frequency voltage regulator applications

被引：0
|
作者：
Yao, KW [1 ]
Xu, M [1 ]
Ren, YC [1 ]
Zhou, JG [1 ]
Qiu, Y [1 ]
Lee, FC [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Ctr Power Elect Syst, Bradley Dept Elect & Comp Engn, Blacksburg, VA 24061 USA
来源：
APEC 2004: NINETEENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1-3 | 2004年
关键词：
voltage regulator; quasi-resonant converter; active-clamp circuit; high-frequency DC-DC converter;
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：
This paper introduces the quasi-resonant and active-clamped concepts into the high-frequency voltage regulator (VR) design. These new converters can realize constant switching frequency modulation, zero-voltage switching (ZVS), small turn-off currents, small circulating currents in the active-clamp circuit, no body-diode reverse-recovery loss, and no body-diode deadtime conduction loss. The operation principle is explained with the help of simulation and state-plane analysis. A prototype is developed for a 12V-to-1.3V/12.5A DC-DC VR operating at 1MHz switching frequency. The experimental results illustrate the advantages of the proposed topology for high-frequency, high-efficiency and high-power-density applications.
引用
收藏
页码：891 / 897
页数：7
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