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Comparative study on power conversion methods for wireless battery charging platform

  • W. P. Choi
  • , W. C. Ho
  • , X. Liu
  • , S.Y.R. Hui*
  • *Corresponding author for this work

Research output: Chapters, Conference Papers, Creative and Literary WorksRGC 32 - Refereed conference paper (with host publication)peer-review

Abstract

In this paper, four different power conversion methods (voltage control, duty-cycle control, frequency control and phase-shift control) are compared for wireless power transfer applications by considering the energy transfer efficiency, electromagnetic interference, stability, and implementation complexity. The phase-shift control is found to be the optimal scheme with good efficiency and low electromagnetic interference. Its constant frequency feature is also within the framework of the new international wireless charging standard called 'Qi'. A high system efficiency of 72% for 5W wireless charging applications has been achieved practically. © 2010 IEEE.
Original languageEnglish
Title of host publicationProceedings of EPE-PEMC 2010 - 14th International Power Electronics and Motion Control Conference
PagesS159-S1516
DOIs
Publication statusPublished - 2010
Event14th International Power Electronics and Motion Control Conference, EPE-PEMC 2010 - Ohrid, Macedonia, The Former Yugoslav Republic of
Duration: 6 Sept 20108 Sept 2010

Publication series

NameProceedings of EPE-PEMC - International Power Electronics and Motion Control Conference

Conference

Conference14th International Power Electronics and Motion Control Conference, EPE-PEMC 2010
PlaceMacedonia, The Former Yugoslav Republic of
CityOhrid
Period6/09/108/09/10

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

The support from Convenientpower HK Ltd. and the Hong Kong Research Grant Council for this project (CityU 114708) is gratefully acknowledged.

Research Keywords

  • Battery charger
  • Contactless charging
  • Electromagnetic interference
  • Wireless power transmission

RGC Funding Information

  • RGC-funded

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