Optimal design of a hybrid winding structure for planar contactless battery charging platform

Xun Liu; S. Y. (Ron) Hui

doi:10.1109/IAS.2006.256900

Optimal design of a hybrid winding structure for planar contactless battery charging platform

Xun Liu
, S. Y. (Ron) Hui^*

^*Corresponding author for this work

Department of Electrical Engineering

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

17 Citations (Scopus)

Abstract

Planar contactless battery charging platform is an emerging technology that has the potential of unifying the charging protocols of portable consumer electronic products. In this paper, a new hybrid structure which consists of a coil and a spiral winding is proposed for improving the uniform magnetic field distribution over the charging surface. An analysis into an optimal design of the number of turns and the dimension of the spiral winding is presented for a given concentrated coil. The uniform magnetic field distribution of the designed prototype is measured by an EMC scanner and by an energy-receiving coil. Based on circuit modeling and analysis, the inverter circuit topology and particularly the resonant compensation tank is designed for maximizing power transfer for multi-load applications. A design procedure is proposed and verified by the experiments. An efficiency of about 80% has been achieved for the coupling structure itself when four loads are charged on the platform simultaneously. © 2006 IEEE.

Original language	English
Title of host publication	Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting
Publisher	IEEE
Pages	2568-2575
Volume	5
ISBN (Electronic)	1-4244-0365-0
ISBN (Print)	1424403642, 9781424403646
DOIs	https://doi.org/10.1109/IAS.2006.256900
Publication status	Published - 2006
Event	41st Industry Applications Society (IAS) Annual Meeting (IAS 2006) - Marriott Waterside Hotel, Tampa, FL, United States Duration: 8 Oct 2006 → 12 Oct 2006 https://ewh.ieee.org/soc/ias/ias2006/

Publication series

Name	Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)
ISSN (Print)	0197-2618

Conference

Conference	41st Industry Applications Society (IAS) Annual Meeting (IAS 2006)
Place	United States
City	Tampa, FL
Period	8/10/06 → 12/10/06
Internet address	https://ewh.ieee.org/soc/ias/ias2006/

Funding

The authors would like to thank Mr. Pakwing Chan for his help in making the platform and the inverter circuit for the experiments. They also thank the Hong Kong Research Grant Council for its support for Project (CityU 1141/05) and City University of Hong Kong for its support for Project 7001761.

Research Keywords

Coreless transformer
Multi-load application
Planar contactless battery charger

RGC Funding Information

RGC-funded

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10.1109/IAS.2006.256900

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Liu, X., & Hui, S. Y. (2006). Optimal design of a hybrid winding structure for planar contactless battery charging platform. In Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting (Vol. 5, pp. 2568-2575). (Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)). IEEE. https://doi.org/10.1109/IAS.2006.256900

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title = "Optimal design of a hybrid winding structure for planar contactless battery charging platform",

abstract = "Planar contactless battery charging platform is an emerging technology that has the potential of unifying the charging protocols of portable consumer electronic products. In this paper, a new hybrid structure which consists of a coil and a spiral winding is proposed for improving the uniform magnetic field distribution over the charging surface. An analysis into an optimal design of the number of turns and the dimension of the spiral winding is presented for a given concentrated coil. The uniform magnetic field distribution of the designed prototype is measured by an EMC scanner and by an energy-receiving coil. Based on circuit modeling and analysis, the inverter circuit topology and particularly the resonant compensation tank is designed for maximizing power transfer for multi-load applications. A design procedure is proposed and verified by the experiments. An efficiency of about 80\% has been achieved for the coupling structure itself when four loads are charged on the platform simultaneously. {\textcopyright} 2006 IEEE.",

keywords = "Coreless transformer, Multi-load application, Planar contactless battery charger",

author = "Xun Liu and Hui, \{S. Y. (Ron)\}",

year = "2006",

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address = "United States",

note = "41st Industry Applications Society (IAS) Annual Meeting (IAS 2006) ; Conference date: 08-10-2006 Through 12-10-2006",

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}

Liu, X & Hui, SY 2006, Optimal design of a hybrid winding structure for planar contactless battery charging platform. in Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting. vol. 5, Conference Record - IAS Annual Meeting (IEEE Industry Applications Society), IEEE, pp. 2568-2575, 41st Industry Applications Society (IAS) Annual Meeting (IAS 2006), Tampa, FL, United States, 8/10/06. https://doi.org/10.1109/IAS.2006.256900

Optimal design of a hybrid winding structure for planar contactless battery charging platform. / Liu, Xun; Hui, S. Y. (Ron).
Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting. Vol. 5 IEEE, 2006. p. 2568-2575 (Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)).

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

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AU - Liu, Xun

AU - Hui, S. Y. (Ron)

PY - 2006

Y1 - 2006

N2 - Planar contactless battery charging platform is an emerging technology that has the potential of unifying the charging protocols of portable consumer electronic products. In this paper, a new hybrid structure which consists of a coil and a spiral winding is proposed for improving the uniform magnetic field distribution over the charging surface. An analysis into an optimal design of the number of turns and the dimension of the spiral winding is presented for a given concentrated coil. The uniform magnetic field distribution of the designed prototype is measured by an EMC scanner and by an energy-receiving coil. Based on circuit modeling and analysis, the inverter circuit topology and particularly the resonant compensation tank is designed for maximizing power transfer for multi-load applications. A design procedure is proposed and verified by the experiments. An efficiency of about 80% has been achieved for the coupling structure itself when four loads are charged on the platform simultaneously. © 2006 IEEE.

AB - Planar contactless battery charging platform is an emerging technology that has the potential of unifying the charging protocols of portable consumer electronic products. In this paper, a new hybrid structure which consists of a coil and a spiral winding is proposed for improving the uniform magnetic field distribution over the charging surface. An analysis into an optimal design of the number of turns and the dimension of the spiral winding is presented for a given concentrated coil. The uniform magnetic field distribution of the designed prototype is measured by an EMC scanner and by an energy-receiving coil. Based on circuit modeling and analysis, the inverter circuit topology and particularly the resonant compensation tank is designed for maximizing power transfer for multi-load applications. A design procedure is proposed and verified by the experiments. An efficiency of about 80% has been achieved for the coupling structure itself when four loads are charged on the platform simultaneously. © 2006 IEEE.

KW - Coreless transformer

KW - Multi-load application

KW - Planar contactless battery charger

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DO - 10.1109/IAS.2006.256900

M3 - RGC 32 - Refereed conference paper (with host publication)

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SN - 9781424403646

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Liu X, Hui SY. Optimal design of a hybrid winding structure for planar contactless battery charging platform. In Conference Record of the 2006 IEEE Industry Applications Conference Forty-First IAS Annual Meeting. Vol. 5. IEEE. 2006. p. 2568-2575. (Conference Record - IAS Annual Meeting (IEEE Industry Applications Society)). Epub 2006 Dec 11. doi: 10.1109/IAS.2006.256900

Optimal design of a hybrid winding structure for planar contactless battery charging platform

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Research Keywords

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