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An Analysis of Magnetic Resonance Coupling Effects on Wireless Power Transfer by Coil Inductance and Placement

Authors
Hwang, HyeonseokMoon, JunilLee, BumsooJeong, Chan-HuiKim, Soo-Won
Issue Date
5월-2014
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Keywords
Wireless power transfer; magnetic resonance; mobile devices; coupling effect
Citation
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, v.60, no.2, pp.203 - 209
Indexed
SCIE
SCOPUS
Journal Title
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS
Volume
60
Number
2
Start Page
203
End Page
209
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/98658
DOI
10.1109/TCE.2014.6851995
ISSN
0098-3063
Abstract
This paper presents an analysis of magnetic resonance coupling effects that can be considered for realizing a wireless power transfer (WPT) system. In this study, numerical analysis is applied to investigate the power transfer characteristics affected by coil inductance and placement. The simulations and experiments, using various coils and positions, are conducted to find the optimum power transfer condition. The experiment shows that the frequency bandwidth of the wireless power transfer at the optimum coupling condition is enlarged to 0.73 MHz and the transfer efficiency is maintained at over 80%(1).
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