Journal of Electrical Engineering and Technology

  • 제11권6호
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  • Pages.1634-1644
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  • 2016
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  • 1975-0102(pISSN)
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  • 2093-7423(eISSN)
대한전기학회 (The Korean Institute of Electrical Engineers)
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Analysis and Design of a Current-fed Two Inductor Bi-directional DC/DC Converter using Resonance for a Wide Voltage Range

  • Noh, Yong-Su (School of Electronic and Electrical Engineering, Sungkyunkwan University) ;
  • Kim, Bum-Jun (School of Electronic and Electrical Engineering, Sungkyunkwan University) ;
  • Choi, Sung-Chon (School of Electronic and Electrical Engineering, Sungkyunkwan University) ;
  • Kim, Do-Yun (School of Electronic and Electrical Engineering, Sungkyunkwan University) ;
  • Won, Chung-Yuen (School of Electronic and Electrical Engineering, Sungkyunkwan University)
  • 투고 : 2015.07.22
  • 심사 : 2016.06.27
  • 발행 : 2016.11.01
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초록

In this paper, a current-fed two-inductor bi-directional DC/DC converter using resonance (CF-TIBCR) and its design method are proposed. The CF-TIBCR has characteristics of low current ripple and a high current rating because of two separated inductors. Also, it achieves zero voltage switching for all switches and zero current switching for switches of a low voltage stage by using the resonant tank. Besides, a voltage spike problem in conventional current-fed converters is solved without the need for an additional snubber or clamping circuits. As a result, the CF-TIBCR features high step-up and high efficiency. Since the proposed converter has difficulty achieving the soft-switching condition when the converter requires the low voltage transfer ratio, a method that varies the number of resonant cycles is adopted to extend the output voltage range with satisfying the soft-switching condition. The principles of the operation characteristics are presented with a theoretical analysis, and the proposed converter is verified through results of an experiment using a laboratory prototype.

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참고문헌

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