Relationship between Leakage Magnetic Field Reduction and Coil Shape for Wireless Power Transfer
Technology for wireless power transmission via electromagnetic induction is expected to be useful for many kinds of electric equipment. In this technology, an alternating magnetic field shared between the primary and secondary coils is necessary. However, the leakage magnetic field caused by this li...
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| Veröffentlicht in: | Journal of the Magnetics Society of Japan 2014/01/01, Vol.38(1), pp.11-14 |
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| container_title | Journal of the Magnetics Society of Japan |
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| creator | Ota, Y. Takura, T. Sato, F. Matsuki, H. Sato, T. Yuyama, A. Sasaki, S. Kato, T. |
| description | Technology for wireless power transmission via electromagnetic induction is expected to be useful for many kinds of electric equipment. In this technology, an alternating magnetic field shared between the primary and secondary coils is necessary. However, the leakage magnetic field caused by this linkage may negatively affect electronic circuits and other devices near the wireless power transmission unit. This paper describes a wireless power transmission coil shape that has high efficiency and a restraining leakage magnetic field. The main result is that a figure-8 coil with a ferrite plate reduces leakage magnetic field strength while maintaining efficiency of wireless power transmission. |
| doi_str_mv | 10.3379/msjmag.1312R003 |
| format | Article |
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In this technology, an alternating magnetic field shared between the primary and secondary coils is necessary. However, the leakage magnetic field caused by this linkage may negatively affect electronic circuits and other devices near the wireless power transmission unit. This paper describes a wireless power transmission coil shape that has high efficiency and a restraining leakage magnetic field. The main result is that a figure-8 coil with a ferrite plate reduces leakage magnetic field strength while maintaining efficiency of wireless power transmission.</description><identifier>ISSN: 1882-2924</identifier><identifier>EISSN: 1882-2932</identifier><identifier>DOI: 10.3379/msjmag.1312R003</identifier><language>eng</language><publisher>Tokyo: The Magnetics Society of Japan</publisher><subject>coil ; electromagnetic induction ; ICNIRP guideline ; magnetic field simulation ; wireless power transmission</subject><ispartof>Journal of the Magnetics Society of Japan, 2014/01/01, Vol.38(1), pp.11-14</ispartof><rights>2014 The Magnetics Society of Japan</rights><rights>Copyright Japan Science and Technology Agency 2014</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4133-3a21764185c4975ae86d12c759394d26221e2247e9772d27b035ac6cb600438d3</citedby><cites>FETCH-LOGICAL-c4133-3a21764185c4975ae86d12c759394d26221e2247e9772d27b035ac6cb600438d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,1883,4024,27923,27924,27925</link.rule.ids></links><search><creatorcontrib>Ota, Y.</creatorcontrib><creatorcontrib>Takura, T.</creatorcontrib><creatorcontrib>Sato, F.</creatorcontrib><creatorcontrib>Matsuki, H.</creatorcontrib><creatorcontrib>Sato, T.</creatorcontrib><creatorcontrib>Yuyama, A.</creatorcontrib><creatorcontrib>Sasaki, S.</creatorcontrib><creatorcontrib>Kato, T.</creatorcontrib><title>Relationship between Leakage Magnetic Field Reduction and Coil Shape for Wireless Power Transfer</title><title>Journal of the Magnetics Society of Japan</title><addtitle>J. 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The main result is that a figure-8 coil with a ferrite plate reduces leakage magnetic field strength while maintaining efficiency of wireless power transmission.</description><subject>coil</subject><subject>electromagnetic induction</subject><subject>ICNIRP guideline</subject><subject>magnetic field simulation</subject><subject>wireless power transmission</subject><issn>1882-2924</issn><issn>1882-2932</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNo9kNFPwjAQhxejiYg--9rE50nb69bu0RBQE4wGMT7W0t1gc2yzHSH-9w4HvNxdct_vLvmC4JbRewCZjDa-2JjVPQPG55TCWTBgSvGQJ8DPTzMXl8GV9wWlsQQVD4KvOZamzevKr_OGLLHdIVZkhubbrJC8mFWFbW7JNMcyJXNMt3YPE1OlZFznJXlfmwZJVjvymTss0XvyVu_QkYUzlc_QXQcXmSk93hz6MPiYThbjp3D2-vg8fpiFVjCAEAxnMhZMRVYkMjKo4pRxK6MEEpHymHOGnAuJiZQ85XJJITI2tsuYUgEqhWFw199tXP2zRd_qot66qnupmZCKMh4BdNSop6yrvXeY6cblG-N-NaN6r1H3GvVRY5eY9InCt52SE29c56XEIw9Ks_9yyJ32dm2cxgr-AIUQfkc</recordid><startdate>20140101</startdate><enddate>20140101</enddate><creator>Ota, Y.</creator><creator>Takura, T.</creator><creator>Sato, F.</creator><creator>Matsuki, H.</creator><creator>Sato, T.</creator><creator>Yuyama, A.</creator><creator>Sasaki, S.</creator><creator>Kato, T.</creator><general>The Magnetics Society of Japan</general><general>Japan Science and Technology Agency</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20140101</creationdate><title>Relationship between Leakage Magnetic Field Reduction and Coil Shape for Wireless Power Transfer</title><author>Ota, Y. ; Takura, T. ; Sato, F. ; Matsuki, H. ; Sato, T. ; Yuyama, A. ; Sasaki, S. ; Kato, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c4133-3a21764185c4975ae86d12c759394d26221e2247e9772d27b035ac6cb600438d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2014</creationdate><topic>coil</topic><topic>electromagnetic induction</topic><topic>ICNIRP guideline</topic><topic>magnetic field simulation</topic><topic>wireless power transmission</topic><toplevel>online_resources</toplevel><creatorcontrib>Ota, Y.</creatorcontrib><creatorcontrib>Takura, T.</creatorcontrib><creatorcontrib>Sato, F.</creatorcontrib><creatorcontrib>Matsuki, H.</creatorcontrib><creatorcontrib>Sato, T.</creatorcontrib><creatorcontrib>Yuyama, A.</creatorcontrib><creatorcontrib>Sasaki, S.</creatorcontrib><creatorcontrib>Kato, T.</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of the Magnetics Society of Japan</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ota, Y.</au><au>Takura, T.</au><au>Sato, F.</au><au>Matsuki, H.</au><au>Sato, T.</au><au>Yuyama, A.</au><au>Sasaki, S.</au><au>Kato, T.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Relationship between Leakage Magnetic Field Reduction and Coil Shape for Wireless Power Transfer</atitle><jtitle>Journal of the Magnetics Society of Japan</jtitle><addtitle>J. Magn. Soc. Jpn.</addtitle><date>2014-01-01</date><risdate>2014</risdate><volume>38</volume><issue>1</issue><spage>11</spage><epage>14</epage><pages>11-14</pages><issn>1882-2924</issn><eissn>1882-2932</eissn><abstract>Technology for wireless power transmission via electromagnetic induction is expected to be useful for many kinds of electric equipment. In this technology, an alternating magnetic field shared between the primary and secondary coils is necessary. However, the leakage magnetic field caused by this linkage may negatively affect electronic circuits and other devices near the wireless power transmission unit. This paper describes a wireless power transmission coil shape that has high efficiency and a restraining leakage magnetic field. 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| language | eng |
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| source | J-STAGE Free; EZB-FREE-00999 freely available EZB journals |
| subjects | coil electromagnetic induction ICNIRP guideline magnetic field simulation wireless power transmission |
| title | Relationship between Leakage Magnetic Field Reduction and Coil Shape for Wireless Power Transfer |
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