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2022-12-14T04:07:04Z
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Improvement in Efficiency of Wireless Power Transfer of Magnetic Resonant Coupling Using Magnetoplated Wire
Mizuno, Tsutomu
Yachi, Shintaro
Kamiya, Akira
Yamamoto, Daisuke
Copyright© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Efficiency
litz wire
magnetic resonant coupling
magnetoplated wire (MPW)
quality factor
wireless power transfer
Wireless power transfer is expected in the use of an electric vehicle and a chip card. However, it requires a high efficiency and takes a long distance. In this paper, we propose the use of a magnetoplated wire (MPW), which is a copper wire (COW) whose circumference is plated with a magnetic thin film to improve transmission efficiency. The MPW can reduce resistances due to the proximity effect comparison with the COW. The inner diameter of COW and MPW coils is d(i) = 37 mm and their number of turns is n = 10. As a result, the resistances of the COW and MPW at the frequency f = 12 MHz are 6.8 and 4.1 Omega, respectively, which show a reduction of 40%. The quality factors of the COW and MPW at the frequency f = 12 MHz are 83 and 138, respectively, which show an increase of 66%. The efficiencies of the COW and MPW at a transmission distance of 10 mm are 69.8% and 77.7%, respectively, which show an increase of 7.9%.
Article
IEEE TRANSACTIONS ON MAGNETICS. 47(10):4445-4448 (2011)
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
2011-10
eng
journal article
AM
http://hdl.handle.net/10091/16109
https://soar-ir.repo.nii.ac.jp/records/12384
https://doi.org/10.1109/TMAG.2011.2158525
10.1109/TMAG.2011.2158525
0018-9464
AA00667933
IEEE TRANSACTIONS ON MAGNETICS
47
10
4445
4448
https://soar-ir.repo.nii.ac.jp/record/12384/files/Improvement_Efficiency_Wireless_Power_Transfer.pdf
application/pdf
692.4 kB
2015-09-28