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Improvement in Voltage Conversion Ratio of Ultrahigh Step-Down Converter

Author

Listed:
  • Kuo-Ing Hwu

    (Department of Electrical Engineering, National Taipei University of Technology, 1, Sec. 3, Zhongxiao E. Rd. Taipei 10608, Taiwan)

  • Wen-Zhuang Jiang

    (Chicony Power Technology Co., Ltd., Sanchong, New Taipei 21458, Taiwan)

  • Hsiang-Hao Tu

    (Delta Electronics Inc., Neihu, Taipei 11466, Taiwan)

Abstract

A modified step-down converter is presented herein, which is mainly based on one coupled inductor and several energy-transferring capacitors to improve the voltage conversion ratio as well as to reduce the switch voltage stress. In addition, the portion of the leakage inductance energy can be recycled to the input via the active clamp circuit during the turn-off period and the switches have zero-voltage switching (ZVS) during the turn-on transient. In this paper, the basic operating principles of the proposed converter are firstly described and analyzed, and its effectiveness is finally demonstrated by experiment based on a prototype with input voltage of 60 V, output voltage of 3.3 V and rated output power of 33 W.

Suggested Citation

  • Kuo-Ing Hwu & Wen-Zhuang Jiang & Hsiang-Hao Tu, 2019. "Improvement in Voltage Conversion Ratio of Ultrahigh Step-Down Converter," Energies, MDPI, vol. 12(20), pages 1-18, October.
  • Handle: RePEc:gam:jeners:v:12:y:2019:i:20:p:3896-:d:276575
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    References listed on IDEAS

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    1. BLINOV, Sergey, 2016. "О Некоторых Успехах Цб России В 2015 Году [On Some Successes Scored by the Russian Central Bank in 2015]," MPRA Paper 69521, University Library of Munich, Germany.
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