发明名称 |
MAGNETIC CORE, COIL COMPONENT COMPRISING IT, AND POWER SOURCE CIRCUIT |
摘要 |
A magnetic core is used for an open magnetic path, and this open magnetic core has a permanent magnet disposed on at least one magnetic path end of a magnetic body having soft magnetic characteristics which forms a magnetic path A coil component comprises this magnetic core and has at least one or more windings of one or more turns around the magnetic core where a permanent magnet is disposed on at least one magnetic path end of a magnetic body having soft magnetic characteristics. A power source circuit comprises the coil component and is so constituted that the polarity of a field impressed on the magnetic body of the soft magnetic characteristics generated by an excitation current flowing by the impressing of an input voltage on the windings mounted around the coil component may be opposite to the polarity of a field impressed on the magnetic body of the soft magnetic characteristics by the permanent magnet.
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申请公布号 |
WO0235691(A1) |
申请公布日期 |
2002.05.02 |
申请号 |
WO2001JP09324 |
申请日期 |
2001.10.24 |
申请人 |
TOKIN CORPORATION |
发明人 |
MATSUMOTO, HATSUO;FUJIWARA, TERUHIKO;NISHINO, HISAO;ITO, TORU;YAMADA, TAKAO;KONDO, MASAHIRO |
分类号 |
H01F3/10;H01F3/14;H01F27/255;H02M1/00;H02M3/155;H02M3/28;(IPC1-7):H02M3/155 |
主分类号 |
H01F3/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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