The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
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ZVT PWM AC-DC Boost Converter with Active Snubber

능동 스너버를 갖는 ZVT PWM AC-DC 승압 컨버터

  • 김춘삼 (강원대. 전기제어공학부) ;
  • 성원기 (강원대 전자정보통신공학부) ;
  • 이정문 (강원대 IT특성화학부) ;
  • 최찬석 (강원대 IT특성화학부) ;
  • 김수홍 (중앙대 전자전기공학부)
  • Published : 2008.02.01
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Abstract

Most of converter system could obtain almost unity power factor and make input current sinusoidal waveform, but they have many problems, such as electromagnetic interference and switching losses caused by switching noise in main switch. To solve these problems in hard switching PFC converter, soft switching converter using a resonant between capacitor and inductor is invented In this paper, advantages and disadvantages of conventional ZVT(Zero-Voltage-Transition) soft switching converter using a auxiliary resonant circuit is discussed. Then Improved ZVT soft switching converter proposed. This improved ZVT converter's operation principal, specific property, design scheme of main are described. From Simulation and experiment results of conventional ZVT soft switching and improved ZVT soft switching converter with active snubber, characteristics of the converter are confirmed.

Keywords

References

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