Title:
NOISE FILTER
Document Type and Number:
Japanese Patent JP2011124553
Kind Code:
A
Abstract:
To provide a noise filter which does not require a middle leg and can be miniaturized, in a small filter for reducing normal mode noise and common mode noise.
The noise filter has two magnetic legs, a soft magnetic core having two flanges for connecting ends of the two magnetic legs, and coils prepared at each of the two magnetic legs. The peripheral part of the flange is extruded to the outside more than the outside exposed surface of the coil.
Inventors:
ITO TORU
SAWA MASAHIRO
SAWA MASAHIRO
Application Number:
JP2010248097A
Publication Date:
June 23, 2011
Filing Date:
November 05, 2010
Export Citation:
Assignee:
HITACHI METALS LTD
International Classes:
H01F37/00; H01F27/255; H03H7/01
Domestic Patent References:
JP2007324197A | 2007-12-13 | |||
JPH11297545A | 1999-10-29 | |||
JPH0221711U | 1990-02-14 | |||
JP2006344829A | 2006-12-21 | |||
JPH04355905A | 1992-12-09 | |||
JPS5887318U | 1983-06-14 | |||
JP2002158124A | 2002-05-31 | |||
JP2009158757A | 2009-07-16 | |||
JP2007324197A | 2007-12-13 | |||
JPH11297545A | 1999-10-29 | |||
JPH0221711U | 1990-02-14 | |||
JP2006344829A | 2006-12-21 |
Foreign References:
US20060139140A1 | 2006-06-29 | |||
US20060273873A1 | 2006-12-07 | |||
US20060139140A1 | 2006-06-29 | |||
US20060273873A1 | 2006-12-07 |