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Title:
INDUCTOR FOR COMMON-MODE FILTER, AND COMMON-MODE FILTER
Document Type and Number:
WIPO Patent Application WO/2011/114859
Kind Code:
A1
Abstract:
Provided is an inductor used for a common-mode filter which passes ultrafast differential signals and reduces common-mode noise. A first and a second inductor (11, 12) interpolatively wind with each other so as to be point-asymmetric on the same plane, and are connected in series so that both inductors (11, 12) are positively coupled. A third and a fourth inductor (13, 14) have the same shape as the first and second inductors (11, 12), interpolatively wind with each other so as to be point-asymmetric on the same plane that opposes the first and second inductors (11, 12), and are connected in series so that both inductors (13, 14) are positively coupled. The first and third inductors (11, 13) overlap with each other and the second and fourth inductors (12, 14) overlap with each other so as to face each other.

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Inventors:
KAMEYA Masaaki (Hisamoto 3-Chome Takatsu-Ku, Kawasaki-Sh, Kanagawa 11, 〒2130011, JP)
Application Number:
JP2011/054273
Publication Date:
September 22, 2011
Filing Date:
February 25, 2011
Export Citation:
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Assignee:
ELMEC CORPORATION (5-7 Hisamoto 3-Chome, Takatsu-Ku Kawasaki-Sh, Kanagawa 11, 〒2130011, JP)
エルメック株式会社 (〒11 神奈川県川崎市高津区久本三丁目5番7号 Kanagawa, 〒2130011, JP)
International Classes:
H01F27/00; H01F17/00; H03H7/09
Foreign References:
JP2008053613A
JP2000277354A
JP2007103896A
JPH07003125U
JPH06177692A
Attorney, Agent or Firm:
SAITO Yoshiharu (Urushizawa Building, 3F.2-14, Minami-Ohtsuka 3-chome, Toshima-ku Tokyo 05, 〒1700005, JP)
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Claims: