WO2009008253A1 - Common-mode choke coil - Google Patents

Common-mode choke coil Download PDF

Info

Publication number
WO2009008253A1
WO2009008253A1 PCT/JP2008/061216 JP2008061216W WO2009008253A1 WO 2009008253 A1 WO2009008253 A1 WO 2009008253A1 JP 2008061216 W JP2008061216 W JP 2008061216W WO 2009008253 A1 WO2009008253 A1 WO 2009008253A1
Authority
WO
WIPO (PCT)
Prior art keywords
coil
magnetic
common
mode choke
insulator
Prior art date
Application number
PCT/JP2008/061216
Other languages
French (fr)
Japanese (ja)
Inventor
Kazuhide Kudo
Ko Yamanaga
Original Assignee
Murata Manufacturing Co., Ltd.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Murata Manufacturing Co., Ltd. filed Critical Murata Manufacturing Co., Ltd.
Publication of WO2009008253A1 publication Critical patent/WO2009008253A1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/0006—Printed inductances
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F17/04—Fixed inductances of the signal type  with magnetic core
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F17/00—Fixed inductances of the signal type 
    • H01F2017/0093—Common mode choke coil

Abstract

Provided is a common-mode choke coil, which is intended to improve the Scd21 characteristics by making the inductance difference between a first coil element and a second coil element as small as possible. The common-mode choke coil comprises a magnetic substrate (2-1), an insulator (3), coil elements (4 and 5) involved in the insulator (3), a magnetic particle containing resin (6), a magnetic substrate (2-2) and external electrodes (7-1 to 7-4). The coil element (4) has its lead wires (41 and 42) led from the outer end and inner end of a coil body portion (40), respectively, and then bent backward of the winding direction. On the other hand, the coil element (5) has its lead wires (51 and 52) led from the outer end and inner end of a coil body portion (50), respectively, in the same direction as the winding direction. Moreover, the magnetic particle containing resin (6) fills the filling holes (30A and 30B) of the insulator (3), thereby to form a magnetic portion (61) in the clearance between the lead wire (41) and the outermost circumference electrode wire (40A) and to form a magnetic portion (62) in the clearance between the lead wire (42) and the outermost circumference electrode wire (40A).
PCT/JP2008/061216 2007-07-10 2008-06-19 Common-mode choke coil WO2009008253A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2007181472 2007-07-10
JP2007-181472 2007-07-10

Publications (1)

Publication Number Publication Date
WO2009008253A1 true WO2009008253A1 (en) 2009-01-15

Family

ID=40228432

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/061216 WO2009008253A1 (en) 2007-07-10 2008-06-19 Common-mode choke coil

Country Status (2)

Country Link
TW (1) TW200921721A (en)
WO (1) WO2009008253A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014096588A (en) * 2012-11-07 2014-05-22 Samsung Electro-Mechanics Co Ltd Common mode filter and method of manufacturing the same
JP2014154869A (en) * 2013-02-14 2014-08-25 Murata Mfg Co Ltd Transformer
US9834615B2 (en) 2010-08-16 2017-12-05 Novimmune Sa Methods for the generation of multispecific and multivalent antibodies

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1154326A (en) * 1997-08-04 1999-02-26 Murata Mfg Co Ltd Coil parts
JP2002373810A (en) * 2001-06-14 2002-12-26 Tdk Corp Chip type common mode choke coil
JP2006245369A (en) * 2005-03-04 2006-09-14 Matsushita Electric Ind Co Ltd Common-mode noise filter
JP2007027444A (en) * 2005-07-15 2007-02-01 Fdk Corp Laminated common-mode choke coil and its manufacturing method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1154326A (en) * 1997-08-04 1999-02-26 Murata Mfg Co Ltd Coil parts
JP2002373810A (en) * 2001-06-14 2002-12-26 Tdk Corp Chip type common mode choke coil
JP2006245369A (en) * 2005-03-04 2006-09-14 Matsushita Electric Ind Co Ltd Common-mode noise filter
JP2007027444A (en) * 2005-07-15 2007-02-01 Fdk Corp Laminated common-mode choke coil and its manufacturing method

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9834615B2 (en) 2010-08-16 2017-12-05 Novimmune Sa Methods for the generation of multispecific and multivalent antibodies
US9926382B2 (en) 2010-08-16 2018-03-27 Novimmune S.A. Methods for the generation of multispecific and multivalent antibodies
US10597465B2 (en) 2010-08-16 2020-03-24 Novimmune Sa Methods for the generation of multispecific and multivalent antibodies
JP2014096588A (en) * 2012-11-07 2014-05-22 Samsung Electro-Mechanics Co Ltd Common mode filter and method of manufacturing the same
JP2017050556A (en) * 2012-11-07 2017-03-09 サムソン エレクトロ−メカニックス カンパニーリミテッド． Common mode filter and method of manufacturing the same
JP2014154869A (en) * 2013-02-14 2014-08-25 Murata Mfg Co Ltd Transformer
US9431163B2 (en) 2013-02-14 2016-08-30 Murata Manufacturing Co., Ltd. Transformer

Also Published As

Publication number Publication date
TW200921721A (en) 2009-05-16

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