NOISE FILTER AND ELECTRONIC DEVICE USING THE SAME

Title:

NOISE FILTER AND ELECTRONIC DEVICE USING THE SAME

Document Type and Number:

Japanese Patent JP2009302580

Kind Code:

A

Abstract:

To provide a noise filter capable of increasing an impedance value in a common mode and a normal mode.

The noise filter includes a magnetic body 130, a first coil 121 comprising a plurality of first internal conductors 121a to 121f, and a second coil 122 comprising a plurality of second internal conductors 122a to 122f, and further has a first laminate portion 123 comprising the first internal conductors 121a to 121c, a second laminate portion 124 formed on an upper surface of the first laminate portion 123 and having the first internal conductors 121d to 121f and second internal conductors 122a to 122c laminated alternately, and a third laminate portion 125 formed on an upper surface of the second laminate portion 124 and comprising the second internal conductors 122d to 122f.

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Inventors:

NAKAYAMA SHOGO
ODA TAKESHI
URYU HIDEKAZU
OISHI KAZUO
WASHISAKI TOMOYUKI
NISHIMURA HIROHARU
MATSUMURA KAZUTOSHI

Application Number:

JP2009222238A

Publication Date:

December 24, 2009

Filing Date:

September 28, 2009

Export Citation:

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Assignee:

PANASONIC CORP

International Classes:

H01F17/00; H03H1/00; H03H7/09

Domestic Patent References:

JPH0669038A	1994-03-11
JPH08335517A	1996-12-17

Attorney, Agent or Firm:

Hiroki Naito
Daisuke Nagano
Kentaro Fujii

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