Simple self-driven synchronous rectifier for resonant inductive coupling wireless power transfer

Takahiro Koyama, Toru Honjo, Masataka Ishihara, Kazuhiro Umetani, Eiji Hiraki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)

Abstract

Resonant inductive coupling wireless power transfer (RIC-WPT) is attracting attention as a convenient power supply method to small mobile apparatus. The efficiency and the power transfer capability of RIC-WPT has been known to be profoundly dependent on the quality factor of the receiving resonator. However, the quality factor of the receiving resonator tends to be deteriorated because of the conduction loss at the diode rectifier, particularly for low output voltage applications. In order to improve the efficiency and the power transfer capability, this paper propose a novel simple synchronous rectifier, which can reduce the conduction loss. The proposed rectifier has simple circuit configuration, which contributes to straightforward application to the wireless power transfer to small mobile apparatus with limited installation space. Experiment was carried out to verify the operation principle of the proposed rectifier. As a result, the proposed rectifier revealed successful suppression of the conduction loss. In addition, the experimental wireless power transfer system verified successful improvement in the rectification efficiency, supporting usefulness of the proposed rectifier for practical applications of the RIC-WPT for small mobile apparatus.

Original languageEnglish
Title of host publication2017 IEEE International Telecommunications Energy Conference
Subtitle of host publicationDriving Innovation in ICT Energy Infrastructure, INTELEC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages363-368
Number of pages6
ISBN (Electronic)9781538610183
DOIs
Publication statusPublished - 2017 Dec 14
Externally publishedYes
Event39th IEEE International Telecommunications Energy Conference, INTELEC 2017 - Broadbeach, Australia
Duration: 2017 Oct 222017 Oct 26

Publication series

NameINTELEC, International Telecommunications Energy Conference (Proceedings)
Volume2017-October
ISSN (Print)0275-0473

Conference

Conference39th IEEE International Telecommunications Energy Conference, INTELEC 2017
CountryAustralia
CityBroadbeach
Period17/10/2217/10/26

Keywords

  • resonant inductive coupling
  • self-driven synchronous rectifier
  • wireless power transfer

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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