Journal of Power Electronics

The Korean Institute of Power Electronics (전력전자학회)
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Active CDS-Clamped L-Type Current-Fed Isolated DC-DC Converter

  • Nguyen, Minh-Khai (Department of Electrical Engineering, Chosun University) ;
  • Duong, Truong-Duy (Department of Electrical Engineering, Chonnam National University) ;
  • Lim, Young-Cheol (Department of Electrical Engineering, Chonnam National University) ;
  • Choi, Joon-Ho (Department of Electrical Engineering, Chonnam National University)
  • Received : 2017.11.03
  • Accepted : 2018.02.06
  • Published : 2018.07.20
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Abstract

In this paper, an active capacitor-diode-switch (CDS) snubber is proposed for L-type current-fed isolated DC-DC converters. The proposed CDS-clamped converter has a number of advantages. It can achieve wide range zero-voltage switching (ZVS) on two switches, a continuous input current with a low ripple, a reduction of one active switch and high efficiency. The operating principles, analysis and parameter design guideline are presented. A 300 W prototype is built to test the proposed converter. Simulation and experimental results are shown at 30 V input voltage and 400 V output voltage.

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References

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