发明公开
- 专利标题： Magnetic core including bias magnet and inductor component using the same
- 专利标题（中）： 磁芯极化和磁性感应器组件
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申请号： EP01125566.8申请日： 2001-10-25
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公开(公告)号： EP1202295A3公开(公告)日： 2003-10-15
- 发明人: Fujiwara, Teruhiko , Ishii, Masayoshi , Hoshi, Haruki , Isogai, Keita , Ito, Toru , Ambo, Tamiko
- 申请人： NEC TOKIN Corporation
- 申请人地址： 7-1, Koriyama 6-chome, Taihaku-ku Sendai-shi, Miyagi JP
- 专利权人： NEC TOKIN Corporation
- 当前专利权人： NEC TOKIN Corporation
- 当前专利权人地址： 7-1, Koriyama 6-chome, Taihaku-ku Sendai-shi, Miyagi JP
- 代理机构： Prüfer, Lutz H., Dipl.-Phys.
- 优先权： JP2000325859 20001025; JP2001023120 20010131; JP2001117665 20010417
- 主分类号： H01F3/14
- IPC分类号： H01F3/14
摘要：
A low-profile magnetic core capable of reducing the thickness of an inductor component is provided. The magnetic core includes at least one gap in a magnetic path, and a permanent magnet is inserted in the gap. The magnetic core has an alternating current magnetic permeability at 20 kHz of 45 or more in a magnetic field of 120 Oe under application of direct current, and has a core loss characteristic of 100 kW/m 3 or less under the conditions of 20 kHz and the maximum magnetic flux density of 0.1 T. An inductor component is produced by applying at least one turn of coil to the aforementioned magnetic core.
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