| 简介 |
PROBLEM TO BE SOLVED : To provide a magnetic core having a magnet for DC magnetic biasing having excellent core loss characteristics and DC superimposing characteristics, and to provide an inductance component using the core.
SOLUTION : The magnetic core has gaps at, at least, one or more spots of a magnetic path and magnets for DC magnetic biasing which perform sputtering or vapor deposition on rare-earth magnet thin films having a characteristic coercive force of ≥5K×103/4πA/m and a Tc of ≥300°C in the gap sections. The rare-earth magnet thin films are formed on ferrite-based substrates arranged in the gaps. The inductance component 10 is constituted of the magnetic core having the magnet for DC magnetic biasing and at least one turn or more of winding 4 provided in the magnetic path of the magnetic core.
COPYRIGHT : (C)2006, JPO&NCIPI |
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