KIEE - The Transactions of the Korean Institute of Electrical Engineers

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The Transactions of the Korean Institute of Electrical Engineers

The Transactions of the Korean Institute of Electrical Engineers

ISO Journal TitleTrans. Korean. Inst. Elect. Eng.

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Title	Evaluation of Magnetic Field Safety in Wireless Power Transfer System via Magnetic Resonance according to the Number of Transmitters
Authors	안지수(Ji-Su An) ; 소평호(Pyung-Ho So) ; 신강인(Gang-In Shin) ; 이병희(Byoung-Hee Lee)
DOI	https://doi.org/10.5370/KIEE.2022.71.7.953
Page	pp.953-958
ISSN	1975-8359
Keywords	Magnetic field; Magnetic resonance; Multi transmitters; Safety evaluation; Wireless power transfer
Abstract	Various studies are being conducted to commercialize the magnetic resonance type wireless power transfer technology. In the magnetic resonance type wireless power transfer technology, a magnetic field is formed when power is transmitted. In addition, the range and strength of the generated magnetic field are varied according to the number of transmitters and the level of transmitted power. The generated magnetic field during power transmission may affect the human body. In this paper, the strength of the magnetic field according to the distance change was compared for the case of one transmitter and two transmitters with the same received power condition. Moreover, the safe range from magnetic fields generated during power transmission was confirmed based on international standards.

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