Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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Performance Analysis of High Efficiency DC-DC Chopper added in Electric Isolation

고효율 절연형 DC-DC 초퍼의 특성해석

  • Kwak, Dong-Kurl (The Professional Graduate School of Disaster Prevention Technology, Kangwon University) ;
  • Lee, Bong-Seob (School of Electrical and Control Engineering, Kangwon University) ;
  • Kim, Choon-Sam (School of Electrical and Control Engineering, Kangwon University) ;
  • Jung, Do-Young (School of Electrical and Control Engineering, Kangwon University) ;
  • Kim, Soo-Kwang (Donghae Samtek co.)
  • 곽동걸 (강원대학교 방재기술전문대학원) ;
  • 이봉섭 (강원대학교 전기제어공학부) ;
  • 김춘삼 (강원대학교 전기제어공학부) ;
  • 정도영 (강원대학교 전기제어공학부) ;
  • 김수광 ((주)동해삼테크)
  • Published : 2007.11.30
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Abstract

This paper is analyzed for DC-DC chopper performance of high efficiency added in electric isolation. The general converters of high efficiency are made that the power loss of the used switching devices is minimized. To achieve high efficiency system, the proposed chopper is constructed by using a partial resonant circuit. The control switches using in the chopper are operated with soft switching for a partial resonant method. The control switches are operated without increasing their voltage and current stresses by the soft switching technology. The result is that the switching loss is very low and the efficiency of chopper is high. And the proposed chopper is added in a electric isolation. When the power conversion system is required to electric isolation, the proposed chopper is adopted with system development of high efficiency. The soft switching operation and the system efficiency of the proposed chopper is verified by digital simulation and experimental results.

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