Time-domain analysis of S/SP compensated contactless resonant converters

Jia Hou, Qianhong Chen, Xiaoyong Ren, Xinbo Ruan, Siu Chung Wong, Chi Kong Tse

Research output: Journal article publicationJournal articleAcademic researchpeer-review

16 Citations (Scopus)


Soc. for Elec. Eng. The series/series-parallel (S/SP) compensated contactless resonant converter has a desirable feature of being insensitive to variation of parameters including the transformer's coupling coefficient. However, the error resulting from the use of fundamental harmonic approximation is significant, which affects the design procedure and the effectiveness of the control. In this paper, a time-domain analysis of the S/SP converter was presented. A generalized equivalent circuit of the S/SP resonant tank was derived, and the cause of the waveform distortion was revealed. Then, more accurate expressions for the key variables of the resonant tank and the output voltage gain were given. Finally, a 1.5 kW contactless resonant converter with S/SP compensation was constructed. Experimental results are in good agreement with the calculated results.
Original languageChinese (Simplified)
Pages (from-to)1983-1992
Number of pages10
JournalZhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering
Issue number8
Publication statusPublished - 20 Apr 2015


  • Contactless power transmission (CPT)
  • Output voltage gain analysis
  • Resonant power converter
  • S/SP compensation
  • Time-domain analysis

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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