发明名称 Variable reluctance ferrite core
摘要 A device, system, and method for suppressing electromagnetic interference (EMI). In one embodiment, an EMI suppression device includes a compound ferrite core having an inner ferrite core and an outer ferrite core. The inner core includes a through hole in which a conductor may be mounted, and the outer core includes a hole in which said inner core is mounted in a concentrically offset manner. The outer core is rotatably adjustable with respect to the inner core in a manner such that the ferrite circuit cross-section area may be varied. The magnetic reluctance of the compound core is controlled in accordance with EMI suppression requirements by adjusting the circuit cross-section area.
申请公布号 US7221235(B2) 申请公布日期 2007.05.22
申请号 US20050106005 申请日期 2005.04.14
申请人 INTERNATIONAL BUSINESS MACHINES CORPORATION 发明人 GILLILAND DON ALAN
分类号 H04B3/28;H01F27/02;H01F27/24 主分类号 H04B3/28
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