Journal of the Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회논문지)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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Comarative Study on Current or Time Sharing Switches for High Efficiency DC/DC Converter

고효율 DC/DC 컨버터용 전류분할과 시분할 스위치 비교 연구

  • Ko, Sung-Hun (Technology Research Institute, GAON Solution) ;
  • Cho, Sung-Pil (Department of Control and Robotics Engineering, Kunsan National University) ;
  • Lee, Su-Won (Technology Research Institute, EN Technologies) ;
  • Lee, Seong-Ryong (Department of Control and Robotics Engineering, Kunsan National University)
  • 고성훈 ((주) 가온솔루션 기술연구소) ;
  • 조성필 (군산대학교 제어로봇공학과) ;
  • 이수원 (이엔테크놀로지(주) 기술연구소) ;
  • 이성룡 (군산대학교 제어로봇공학과)
  • Received : 2011.11.23
  • Accepted : 2011.12.06
  • Published : 2012.01.01
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Abstract

This paper presents a comparative analysis of the parallel operation of different switches in a DC/DC converter. In high power applications, multi-switch PWM power conditioners may be preferred despite a higher component count, due to the absence of low frequency filters, reduced switching losses and fault tolerance. The paper demonstrates how current sharing (CSH) and time sharing (TSH) lead to the reduction of switching stress in the parallel operation of switches in any converter. The solutions proposed in this study can be applied on different scales to other power conditioners for DC/DC converter systems. Discussions of the concepts, hypotheses and computer simulations are verified by 1 kW experimental results.

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References

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