Title:
NOISE FILTER AND NOISE FILTER CIRCUIT
Document Type and Number:
Japanese Patent JP2007129291
Kind Code:
A
Abstract:
To provide a noise filter and a noise filter circuit capable of reducing common mode noises.
The noise filter is configured such that a third coil 14 is connected to a first coil 12 via a first output external electrode 18, a fourth coil 15 is connected to a second coil 13 via a second output external electrode 19, when signals are received from a pair of input external electrodes 16, 17 in the same direction, a current flowing through the first coil 12 and a current flowing through the second coil 13 are caused to flow in the same direction, and a current flowing through the third coil 14 and a current flowing through the fourth coil 15 are caused to flow in opposite directions.
Inventors:
NAKAYAMA SHOGO
SHIBATA OSAMU
SUENAGA HIROSHI
TAGUCHI YUTAKA
SHIBATA OSAMU
SUENAGA HIROSHI
TAGUCHI YUTAKA
Application Number:
JP2005317918A
Publication Date:
May 24, 2007
Filing Date:
November 01, 2005
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
H03H7/09; H01F17/00; H01F27/00
Domestic Patent References:
| JPH0380708A | 1991-04-05 | |||
| JPH1168497A | 1999-03-09 | |||
| JPH11220349A | 1999-08-10 | |||
| JP2004311826A | 2004-11-04 | |||
| JPH08115820A | 1996-05-07 |
Attorney, Agent or Firm:
Fumio Iwahashi
Hiroki Naito
Daisuke Nagano
Hiroki Naito
Daisuke Nagano
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