Hybrid IPT Topologies with Constant Current or Constant Voltage Output for Battery Charging Applications

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

303 Scopus Citations
View graph of relations

Author(s)

  • Xiaohui Qu
  • Hongdou Han
  • Siu-Chung Wong
  • Chi K. Tse
  • Wu Chen

Detail(s)

Original languageEnglish
Article number7018969
Pages (from-to)6329-6337
Journal / PublicationIEEE Transactions on Power Electronics
Volume30
Issue number11
Online published23 Jan 2015
Publication statusPublished - Nov 2015
Externally publishedYes

Abstract

The inductive power transfer (IPT) technique in battery charging applications has many advantages compared to conventional plug-in systems. Due to the dependencies on transformer characteristics, loading profile, and operating frequency of an IPT system, it is not a trivial design task to provide the battery the required constant charging current (CC) or constant battery charging voltage (CV) efficiently under the condition of a wide load range possibly defined by the charging profile. This paper analyzes four basic IPT circuits with series-series (SS), series-parallel (SP), parallel-series (PS), and parallel-parallel (PP) compensations systematically to identify conditions for realizing load-independent output current or voltage, as well as resistive input impedance. Specifically, one load-independent current output circuit and one load-independent voltage output circuit having the same transformer, compensating capacitors, and operating frequency can be readily combined into a hybrid topology with fewest additional switches to facilitate the transition from CC to CV. Finally, hybrid topologies using either SS and PS compensation or SP and PP compensation are proposed for battery charging. Fixed-frequency duty cycle control can be easily implemented for the converters.

Research Area(s)

  • battery charing, constant-current output, constant-voltage output, Inductive power transfer, resistive input impedance.

Citation Format(s)

Hybrid IPT Topologies with Constant Current or Constant Voltage Output for Battery Charging Applications. / Qu, Xiaohui; Han, Hongdou; Wong, Siu-Chung et al.

In: IEEE Transactions on Power Electronics, Vol. 30, No. 11, 7018969, 11.2015, p. 6329-6337.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review