Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)
- 2005.07b
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- Pages.1395-1397
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- 2005
A study on QR flyback DC-DC converter for synchronous rectifier
공진형 플라이백 DC-DC 컨버터용 동기정류기에 관한 연구
- Won, Ki-Sik (Dept. of Electronics Eng, Cheongju University) ;
- Ahn, Tae-Young (Dept. of Electronics Eng, Cheongju University)
- Published : 2005.07.18
Abstract
This paper presents a novel current driving method for the synchronous rectifier(SR) in a flyback topology. The proposed current driven synchronous rectifier features low power loss, good performance and the gate voltage of FET in the synchronous rectifier is easily controlled by resistor ratio. The proposed SR driving method is implemented in a 200W Flyback converter with 400Vdc input and achieved excellent performance at full load.
Keywords