Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Active-clamp current-fed push-pull converter

능동 클램프를 이용한 전류원 푸쉬풀 컨버터

  • Kim, Sang-Sik (Department of Electronics & Electrical Engineering, Pohang University of Science and Technology) ;
  • Kwon, Bong-Hwan (Department of Electronics & Electrical Engineering, Pohang University of Science and Technology)
  • 김상식 (포항공과대학교 전자전기공학과) ;
  • 권봉환 (포항공과대학교 전자전기공학과)
  • Published : 2006.07.12
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Abstract

An active-clamp current-fed push-pull converter for the step-up application is proposed. The proposed converter is composed of active-clamp circuits and a voltage doubler rectifier. Thus, the voltage stress of the main switches is reduced and the output diodes are clamped to output voltage. Moreover, the output diodes can achieve zero current switching (ZCS) by the series resonance between resonant capacitors and leakage inductances. The prototype is designed for 350V/1.5kW with input voltage range $30{\sim}60V$. The theoretical analysis and experimental results are presented.

Keywords