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