Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지

Novel Zero-Voltage and Zero-Current-Switching (ZVZCS) Full Bridge PWM Converter with a Low Output Current Ripple

낮은 인덕터 맥동전류를 가지는 새로운 영전압 영전류 스위칭 풀 브릿지 DC/DC 컨버터

  • Baek, J.W. (Power Electronics research Division, Korea Electrotechnology Research Institute) ;
  • Cho, J.G. (Power Electronics research Division, Korea Electrotechnology Research Institute) ;
  • Yoo, D.W. (Power Electronics research Division, Korea Electrotechnology Research Institute) ;
  • Song, D.I. (Power Electronics research Division, Korea Electrotechnology Research Institute) ;
  • Rim, G.H. (Power Electronics research Division, Korea Electrotechnology Research Institute)
  • 백주원 (한국전기연구소 전력전자연구부) ;
  • 조정구 (한국전기연구소 전력전자연구부) ;
  • 유동욱 (한국전기연구소 전력전자연구부) ;
  • 송두익 (한국전기연구소 전력전자연구부) ;
  • 임근희 (한국전기연구소 전력전자연구부)
  • Published : 1997.07.21
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Abstract

A novel zero voltage and zero current switching (ZVZCS) full bridge (FB) PWM converter with a low output current ripple is proposed. The proposed circuit improve the demerits of the previously presented ZVBCS-FB-PWM converters[5-8] such as use of lossy components or additional active switches. A simple auxiliary circuit which includes neither lossy components nor active switches provides ZVZCS conditions to primary switches, ZVS for leading-leg switches and ZCS for lagging-leg switches. In addition, this proposed circuit reduces a output current ripple considerably. Many advantages including simple circuit topology, high efficiency, low cost and low current ripple make the new converter attractive far high power (> 1kW) applications.

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