LLC Converters with Automatic Resonant Frequency Tracking Based on Synchronous Rectifier (SR) Gate Driving Signals

被引：0
|
作者：
Feng, Weiyi [1 ]
Mattavelli, Paolo [1 ]
Lee, Fred C. [1 ]
Fu, Dianbo [1 ]
机构：
[1] Virginia Polytech Inst & State Univ, Ctr Power Elect Syst, Blacksburg, VA 24061 USA
来源：
2011 TWENTY-SIXTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2011年
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D O I：
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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 novel switching frequency control scheme to track the resonant frequency point (f(0)) is proposed. First, the synchronous rectifier (SR) gate driving signals are well tuned with proposed universal adaptive SR driving scheme by eliminating the body diode conduction. Then, the novel pulse width locked loop with digital implementation is presented to minimize the pulse width difference between main switch and well tuned SR gate driving signals, making LLC always operate at f(0) point.
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页码：1 / 5
页数：5
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