Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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Asymmetrical Half-bridge Flyback Converter with Universal Input Voltage Range

넓은 입력전압 범위에서 동작하는 비대칭 하프브리지 방식의 플라이백 컨버터

  • 유두희 (순천향대학교 전자정보공학과) ;
  • 이재민 (순천향대학교 전자정보공학과) ;
  • 정강률 (순천향대학교 전자정보공학과)
  • Published : 2007.11.30
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Abstract

This paper presents an asymmetrical half-bridge flyback converter with universal input voltage range. The leakage inductance and output capacitance of active switches are used to realize zero voltage switching(ZVS) operation during the transition state between two switches. In this paper, the operating principle and system analysis of the adopted converter are discussed in detail. A 5V/20A prototype has been implemented to verify the proposed topology and theoretical operation under various load condition and universal input voltage range.

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