Characteristic, Design and Implementation of Double-Sided LC Compensation with Flexible Constant-Current Outputs for Inductive Power Transfer Applications

Xiaohui Qu, Haijun Chu, Siu Chung Wong, Chi K. Tse

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

1 Citation (Scopus)


Compensation is indispensable in inductive-power-transfer (IPT) converters, facilitating the characteristics of nearly zero reactive circulating power, soft switching realization and the required load-independent constant-voltage (CV) or constant-current (CC) output to improve the transfer efficiency and decrease the component ratings. However, the load-independent output relies on the IPT parameters greatly. The space-constrained IPT transformer poses a limitation on the design of the IPT converter transfer function and makes the IPT converter hard to optimize. This paper will analyze the design freedom of the double-sided LC compensation circuit from the points of load-independent constant output and zero reactive power. A thorough derivation is given for the double-sided LC compensation with CC output not constrained by the transformer parameters. The output CC design boundary is also stated. Then an LC-CC compensation topology is proposed to generate the flexible CC output compensating the output current amplitude limitation of double-sided LC compensation.

Original languageEnglish
Title of host publication2018 IEEE PELS Workshop on Emerging Technologies
Subtitle of host publicationWireless Power Transfer, Wow 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781538624654
Publication statusPublished - 3 Jul 2018
Event2018 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, Wow 2018 - Montreal, Canada
Duration: 3 Jul 20187 Jul 2018

Publication series

Name2018 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, Wow 2018


Conference2018 IEEE PELS Workshop on Emerging Technologies: Wireless Power Transfer, Wow 2018


  • Double-sided LC compensation
  • Inductive power transfer
  • Soft switching
  • Unconstrained transformer
  • Zero reactive power

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Control and Optimization
  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering

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