JPH02251107A - Choke coil - Google Patents
Choke coilInfo
- Publication number
- JPH02251107A JPH02251107A JP7361689A JP7361689A JPH02251107A JP H02251107 A JPH02251107 A JP H02251107A JP 7361689 A JP7361689 A JP 7361689A JP 7361689 A JP7361689 A JP 7361689A JP H02251107 A JPH02251107 A JP H02251107A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- permeability
- core
- choke coil
- magnetic flux
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 230000035699 permeability Effects 0.000 abstract 6
- 239000011162 core materials Substances 0.000 abstract 5
- 230000004907 flux Effects 0.000 abstract 5
- 239000000696 magnetic materials Substances 0.000 abstract 4
- 239000004020 conductors Substances 0.000 abstract 2
- 101710077014 GAS2 Proteins 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound data:image/svg+xml;base64,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 data:image/svg+xml;base64,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 [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000000463 materials Substances 0.000 abstract 1
- 239000004814 polyurethane Substances 0.000 abstract 1
- 229920002635 polyurethanes Polymers 0.000 abstract 1
- 230000001629 suppression Effects 0.000 abstract 1
Abstract
PURPOSE: To obtain a choke coil characterized by high saturation magnetomotive force, less magnetic flux leakage and high permeability by inserting a spacer which is formed with a magnetic material whose permeability is lower than that of a core material and whose saturation magnetic flux density is higher than that of the core material into a gap.
CONSTITUTION: In a choke coil A, a part of a toroidal core 1 which is formed with a high permeability magnetic material such as an amorphous material is cut out, and a gap 2 is provided. A spacer 3 comprising a magnetic material characterized by low permeability and high saturation magnetic flux density is inserted into the gas 2. A conductor wire 4 such as polyurethane coated copper wire and the like is wound around the core 1 many number of turns, and the coil is formed. When a large current is made to flow through the conductor wire 4 until the magnetic flux density in the core 1 is saturated, the choke coil having highly saturated magnetomotive force is obtained. As the gap 2, the magnetic material whose permeability is relatively low is used. In this way, the saturation magnetomotive force of the choke coil having the high permeability can be made high, and the leaking magnetic flux at the gap part is made less. Magnetic interference with surrounding electric parts can be suppressed.
COPYRIGHT: (C)1990,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7361689A JPH02251107A (en) | 1989-03-24 | 1989-03-24 | Choke coil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7361689A JPH02251107A (en) | 1989-03-24 | 1989-03-24 | Choke coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02251107A true JPH02251107A (en) | 1990-10-08 |
Family
ID=13523443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7361689A Pending JPH02251107A (en) | 1989-03-24 | 1989-03-24 | Choke coil |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02251107A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6346336B1 (en) | 1998-05-27 | 2002-02-12 | Matsushita Electrical Industrial Co., Ltd. | Soft magnetic film soft magnetic multilayer film method of manufacturing the same and magnetic device |
| EP1498915A1 (en) * | 2003-07-16 | 2005-01-19 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US7023313B2 (en) | 2003-07-16 | 2006-04-04 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US7218197B2 (en) | 2003-07-16 | 2007-05-15 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| JP2008099713A (en) * | 2006-10-17 | 2008-05-01 | Nipro Corp | Medical tube and medical device set |
| JP2008140838A (en) * | 2006-11-30 | 2008-06-19 | Matsushita Electric Ind Co Ltd | Inductor component and electronic apparatus using the same |
| US7760525B2 (en) | 2003-08-21 | 2010-07-20 | Marvell World Trade Ltd. | Voltage regulator |
| US7872454B2 (en) | 2003-08-21 | 2011-01-18 | Marvell World Trade Ltd. | Digital low dropout regulator |
| JP2012253264A (en) * | 2011-06-06 | 2012-12-20 | Toyota Industries Corp | Magnetic core |
| WO2015098579A1 (en) * | 2013-12-25 | 2015-07-02 | アイシン精機株式会社 | Reactor |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934610A (en) * | 1982-08-20 | 1984-02-25 | Nippon Kinzoku Kk | Iron core |
| JPS6124211A (en) * | 1984-07-13 | 1986-02-01 | Hitachi Metals Ltd | Magnetic core for polarized choke coil |
-
1989
- 1989-03-24 JP JP7361689A patent/JPH02251107A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5934610A (en) * | 1982-08-20 | 1984-02-25 | Nippon Kinzoku Kk | Iron core |
| JPS6124211A (en) * | 1984-07-13 | 1986-02-01 | Hitachi Metals Ltd | Magnetic core for polarized choke coil |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6346336B1 (en) | 1998-05-27 | 2002-02-12 | Matsushita Electrical Industrial Co., Ltd. | Soft magnetic film soft magnetic multilayer film method of manufacturing the same and magnetic device |
| US7868725B2 (en) | 2003-07-16 | 2011-01-11 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| EP1498915A1 (en) * | 2003-07-16 | 2005-01-19 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| JP2005039229A (en) * | 2003-07-16 | 2005-02-10 | Marvell World Trade Ltd | Power inductor reduced in dc current saturation |
| US7023313B2 (en) | 2003-07-16 | 2006-04-04 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US7307502B2 (en) | 2003-07-16 | 2007-12-11 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US8028401B2 (en) | 2003-07-16 | 2011-10-04 | Marvell World Trade Ltd. | Method of fabricating a conducting crossover structure for a power inductor |
| US7987580B2 (en) | 2003-07-16 | 2011-08-02 | Marvell World Trade Ltd. | Method of fabricating conductor crossover structure for power inductor |
| US7489219B2 (en) | 2003-07-16 | 2009-02-10 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US7882614B2 (en) | 2003-07-16 | 2011-02-08 | Marvell World Trade Ltd. | Method for providing a power inductor |
| US7218197B2 (en) | 2003-07-16 | 2007-05-15 | Marvell World Trade Ltd. | Power inductor with reduced DC current saturation |
| US7849586B2 (en) | 2003-07-16 | 2010-12-14 | Marvell World Trade Ltd. | Method of making a power inductor with reduced DC current saturation |
| US7872454B2 (en) | 2003-08-21 | 2011-01-18 | Marvell World Trade Ltd. | Digital low dropout regulator |
| US7760525B2 (en) | 2003-08-21 | 2010-07-20 | Marvell World Trade Ltd. | Voltage regulator |
| JP2008099713A (en) * | 2006-10-17 | 2008-05-01 | Nipro Corp | Medical tube and medical device set |
| JP2008140838A (en) * | 2006-11-30 | 2008-06-19 | Matsushita Electric Ind Co Ltd | Inductor component and electronic apparatus using the same |
| JP2012253264A (en) * | 2011-06-06 | 2012-12-20 | Toyota Industries Corp | Magnetic core |
| US9041500B2 (en) | 2011-06-06 | 2015-05-26 | Kabushiki Kaisha Toyota Jidoshokki | Magnetic core |
| WO2015098579A1 (en) * | 2013-12-25 | 2015-07-02 | アイシン精機株式会社 | Reactor |
| JP2015122456A (en) * | 2013-12-25 | 2015-07-02 | アイシン精機株式会社 | Reactor |
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