Proceedings of the KIPE Conference (전력전자학회:학술대회논문집)

The Korean Institute of Power Electronics (전력전자학회)
권호 표지

An Improved Zero Voltage Switching Forward DC/DC Converter For Reducing Switching Losses

  • Kim, Eun-Soo (P.E Division, Korea Electro-technology Research Institute) ;
  • Joe, Kee-Yeon (P.E Division, Korea Electro-technology Research Institute) ;
  • Park, Hae-Young (P.E Division, Korea Electro-technology Research Institute) ;
  • Kim, Yoon-Ho (Dept. of Electrical Engineering, Chung-Ang University) ;
  • Kim, Choon-Same (Dept. of Control & Instrumentation Engineering, Samchok National University)
  • Published : 1998.10.01

⟨ Previous Next ⟩

Abstract

To achieve high efficiency in high power and high frequency applications, reduction of switching losses and noise is very important. In this paper, an improved zero voltage switching forward dc/dc converter is proposed. The proposed converter is constructed by using energy recovery snubbers in parallel with the main switches and output diodes of the conventional forward dc/dc converter. Due to the use of the energy recovery snubbers in the primary and secondary side, the proposed converter achieves zero-voltage-switching turn-off without switching losses for switching devices and output rectification diodes. The complete operating principles and experimental results will be presented.

Keywords