Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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Novel ZVZCS Full-bridge PWM converter using a coupled output inductor

출력단 결합인덕터를 이용한 영전압 영전류 스위칭 플브릿지 PWM 컨버터

  • Choi, Hang-Seok (School of Electrical Engineering, Seoul National University) ;
  • Cho, B.H. (School of Electrical Engineering, Seoul National University)
  • Published : 2000.07.17
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Abstract

A novel zero voltage and zero current switching (ZVZCS) full bridge (FB) PWM converter is proposed. The new converter improves the drawbacks of the previously proposed ZVZCS FB PWM converters [1-5]. A simple auxiliary circuit with neither lossy components nor active switches achieves ZVZCS of the primary switches. Since the proposed converter has many advantages such as simple auxiliary circuit, high efficiency, and low voltage stress of the rectifier diode, it is very attractive for the high power applications. The principles of operation and design considerations are presented. The experimental verifications from 2.5kW prototype converter operating at 70kHz are presented.

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