An Improved Wireless Battery Charging System

Woo-Seok Lee, Jin-Hak Kim, Shin-Young Cho and Il-Oun Lee
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Woo-Seok Lee: Department of Electrical Engineering, Myongji University, Yongin 17058, Korea
Jin-Hak Kim: Department of Electrical Engineering, Myongji University, Yongin 17058, Korea
Shin-Young Cho: Agency for Defense Development, Daejeon 34186, Korea
Il-Oun Lee: Department of Electrical Engineering, Myongji University, Yongin 17058, Korea

Energies, 2018, vol. 11, issue 4, 1-12

Abstract: This paper presents a direct wireless battery charging system. The output current of the series-series compensated wireless power transfer (SS-WPT) system is used as a current source, and the output voltage of AC-DC converter controls the current source. Therefore, the proposed wireless battery charging system needs no battery charging circuit to carry out charging profiles, and can solve space constraints and thermal problems in many battery applications. In addition, the proposed wireless battery charging system can implement easily most other charging profiles. In this paper, the proposed wireless battery charging system is implemented and the feasibility is verified experimentally according to constant-current constant-voltage charging profile or multi-step current charging profile.

Keywords: wireless battery charging system; wireless power transfer; series-series compensated circuit (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2018
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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