Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
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A New-Half Bridge Converter without DC offset of magnetizing current

  • Cho, Kyu-Min (Department of Electrical Engineering and Computer Science, KAIST) ;
  • Oh, Won-Sik (Department of Electrical Engineering and Computer Science, KAIST) ;
  • Moon, Gun-Woo (Department of Electrical Engineering and Computer Science, KAIST)
  • Published : 2007.07.02
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Abstract

A new half bridge converter without DC offset of magnetizing current is proposed. The proposed half bridge converter can realize no DC offset of magnetizing current as well as no circulating current, and guarantee ZVS operation. Therefore it has high efficiency and high power density, especially in wide input range. The operational principle, DC conversion ratio and ZVS analysis are presented. Experimental results demonstrate that the proposed converter can achieve a significant improvement in the efficiency.

Keywords