Design of a current-source-output inductive power transfer LED lighting system

Xiaohui Qu, Wei Zhang, Siu Chung Wong, Chi Kong Tse

Research output: Journal article publicationJournal articleAcademic researchpeer-review

81 Citations (Scopus)


Inductive power transfer (IPT) light-emitting diode (LED) lighting systems have many advantages in commercial, industrial, and domestic applications. Due to the large leakage inductance, primary and secondary capacitor compensations are necessary to improve the power transfer capability. To offer a direct current source output for LED driving, topology with series-series (SS) compensation is chosen and analyzed in this paper. Using a properly designed operating frequency, the SS compensation can be the best topology for the voltage-source-input and current-source-output applications. To design an efficient IPT system, the loosely coupled transformer is the key component whose design and interaction with other system components can be difficult to formulate. In this paper, a systematic design methodology for an efficient IPT LED lighting system is proposed. The analysis, implementation, and verification are detailed.
Original languageEnglish
Article number6800083
Pages (from-to)306-314
Number of pages9
JournalIEEE Journal of Emerging and Selected Topics in Power Electronics
Issue number1
Publication statusPublished - 1 Jan 2015


  • Current source output
  • inductive power transfer (IPT)
  • light-emitting diode (LED) lighting
  • loosely coupled transformer
  • series-series (SS) compensation

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Electrical and Electronic Engineering


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