Load-independent current output of inductive power transfer converters with optimized efficiency

Wei Zhang, Siu Chung Wong, Chi Kong Tse, Qianhong Chen

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

12 Citations (Scopus)

Abstract

Inductive power transfer (IPT) systems are resonant converters whose output characteristics are mostly load dependent. Conditions for ensuring a load-independent voltage-transfer ratio of an IPT system have been studied. However, load-independent current output can be more desirable for applications such as battery charging and LED driving. This paper studies the characteristics of IPT systems operating at different frequencies as transconductance converters. Operating frequencies for load-independent transconductance are explored, looking for optimal efficiency. The frequencies interested are found to facilitate the design of a current-output IPT converter with efficient power conversion. The analysis is supported by experimental results.
Original languageEnglish
Title of host publication2014 International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
PublisherIEEE Computer Society
Pages1425-1429
Number of pages5
ISBN (Print)9781479927050
DOIs
Publication statusPublished - 1 Jan 2014
Event7th International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014 - Hiroshima, Japan
Duration: 18 May 201421 May 2014

Conference

Conference7th International Power Electronics Conference, IPEC-Hiroshima - ECCE Asia 2014
Country/TerritoryJapan
CityHiroshima
Period18/05/1421/05/14

Keywords

  • compensation topology
  • efficiency
  • Inductive power transfer
  • load-independent transconductance
  • wireless power transmission

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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