A High Efficiency Power Supply with High Power Factor Input

  • Chiu, Huang-Jen (Dept. of Electrical Engineering, Chung-Yuan Christian Univ.) ;
  • Huang, Hsiu-Ming (Dept. of Electrical Engineering, Chung-Yuan Christian Univ.) ;
  • Lin, Li-Wei (Dept. of Electrical Engineering, Chung-Yuan Christian Univ.) ;
  • Mou, Shann-Chyi (Dept. of Mechanical Engineering, Ching-Yun Univ.) ;
  • Liu, Pang-Jung (Elan Microelectronics Corporation)
  • Published : 2005.06.02

Abstract

This paper presents a single-stage ZVT full-bridge AC/DC converter for aerospace applications. The detailed operating principle and design consideration of this soft-switched converter are analyzed and described. The proposed circuit topology and control scheme are proposed to exhibit optimum performances (i.e. high power factor, high efficiency, ring-free and low EMI features). A laboratory prototype, 500W 5V/100A AC/DC converter was implemented. The simulation and experimental waveforms verify the feasibility of the proposed design.

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