Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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ZCS-PWM Converter dropped Voltage Stress of Free-Wheeling Diode

환류 다이오드의 전압스트레스가 강하된 ZCS-PWM Converter

  • Kim Myung-O (Dept. of Electrical Engineering of Inha University) ;
  • Kim Young-Seok (Dept. of Electrical Engineering of Inha University) ;
  • Lee Gun-Haeng (Dept. of Electrical Engineering of Inha University)
  • 김명오 (인하대학교 전기공학과) ;
  • 김영석 (인하대학교 전기공학과) ;
  • 이건행 (인하대학교 전기공학과)
  • Published : 2004.07.14
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Abstract

This paper presents a boost circuit topology driving in high - frequency. It solves the problem which arised from hard-switching in high-frequency using a period of resonant circuit and operating under the principle of ZCS turn-on and ZCZVS turn-off commutation schemes. In the existing circuit, it has the high voltage stress in free-wheeling diode. But in the proposed circuit, it has voltage stress which is lower than voltage stress of existing circuit with modifing a location of free-wheeling diode. In this paper, it explained the circuit operation of each mode and the waveform of each mode. Also the experiment result compares the existing voltage stress of free-wheeling diode with the proposed voltage stress of that.

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