发明授权
- 专利标题： Inductance variable device
- 专利标题（中）： 电感变量装置
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申请号： US11252751申请日： 2005-10-19
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公开(公告)号： US07336147B2公开(公告)日： 2008-02-26
- 发明人: Daisuke Watanabe , Takuo Hino
- 申请人： Daisuke Watanabe , Takuo Hino
- 申请人地址： JP Osaka
- 专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人： Matsushita Electric Industrial Co., Ltd.
- 当前专利权人地址： JP Osaka
- 代理机构： Wenderoth, Lind & Ponack, L.L.P.
- 优先权： JP2004-304716 20041019
- 主分类号： H01F5/00
- IPC分类号： H01F5/00
摘要：
A inductance variable device includes a first inductor, a second inductor magnetically coupled to the first inductor, a current source whose current is variable, electrically connected to the first inductor, and a current control unit. The current control unit controls a current flowing from the current source to the first inductor according to a feedback signal having frequency information in a current flowing in the second inductor to vary a combined inductance of the second inductor.
公开/授权文献
- US20060139138A1 Inductance variable device 公开/授权日：2006-06-29
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