Self-oscillating contactless resonant converter with power transfer and current sensing integrated transformer

Ligang Xu, Qianhong Chen, Xiaoyong Ren, Shen Ping, Siu Chung Wong

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

4 Citations (Scopus)


A contactless transformer with a shorted current sensing winding in the primary side is proposed to provide a passive current phase detection solution for a self-oscillating contactless resonant converter (SOCRC). It can detect the phase of the secondary current and feedback to the primary side rapidly and accurately regardless of the variable air gap. To guarantee the operation of the SOCRC, the influence of the coupling coefficient between the shorted current sensing winding and the secondary windings is analyzed in detail. Some experimental results on an 80W SOCRC are used to verify the analytical results of the proposed structure.
Original languageEnglish
Title of host publication2015 IEEE Energy Conversion Congress and Exposition, ECCE 2015
Number of pages5
ISBN (Electronic)9781467371506
Publication statusPublished - 27 Oct 2015
Event7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015 - Palais des Congres de Montreal (Montreal Convention Centre), Montreal, Canada
Duration: 20 Sep 201524 Sep 2015


Conference7th Annual IEEE Energy Conversion Congress and Exposition, ECCE 2015


  • Contactless Resonant Converter
  • Self-Oscillating
  • Transformer

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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