A novel high step-down interleaved converter with coupled inductor

Wilmar Martinez, Jun Imaoka, Yuki Itoh, Masayoshi Yamamoto, Kazuhiro Umetani

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

抄録

Nowadays, high power density has become essential in networking, telecommunications and computing applications. Additionally, the electronic equipment used in these applications requires a very-low voltage feeding even when its power supply has a much higher voltage rating. Therefore, high step-down converters with high power density performance are required for these applications. Consequently, a novel two-phase interleaved high step-down converter is proposed in order to fulfill the requirements of high power density and high step-down conversion ratio of these applications. The proposed converter addresses the objective by a particular coupled inductor where three windings are only installed in one core. As a result, the proposed converter can achieve higher step-down ratio than the conventional topologies by adding a winding and two switches to the interleaved two phase buck converter, besides the coupled-inductor configuration. In this paper, the novel topology is introduced and analyzed in order to find its conversion ratio operation. Then, the proposed topology is compared to conventional topologies and some improved high step-down converters recently proposed. Finally, the proposed converter is experimentally validated and the results revealed that the proposed converter shows higher step-down conversion ratio than the conventional buck converter with a further increment of 40% in the conversion ratio when the converter is operating at a duty cycle of 30% and ratio of turns of 2.

本文言語英語
ホスト出版物のタイトル2015 IEEE International Telecommunications Energy Conference, INTELEC 2015
出版社Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781479965823
DOI
出版ステータス出版済み - 9 20 2016
イベント2015 IEEE International Telecommunications Energy Conference, INTELEC 2015 - Osaka, 日本
継続期間: 10 18 201510 22 2015

出版物シリーズ

名前INTELEC, International Telecommunications Energy Conference (Proceedings)
2016-September
ISSN(印刷版)0275-0473

その他

その他2015 IEEE International Telecommunications Energy Conference, INTELEC 2015
国/地域日本
CityOsaka
Period10/18/1510/22/15

All Science Journal Classification (ASJC) codes

  • エネルギー工学および電力技術
  • 電子工学および電気工学

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