JPS59138316A - Inductance element - Google Patents
Inductance elementInfo
- Publication number
- JPS59138316A JPS59138316A JP1221883A JP1221883A JPS59138316A JP S59138316 A JPS59138316 A JP S59138316A JP 1221883 A JP1221883 A JP 1221883A JP 1221883 A JP1221883 A JP 1221883A JP S59138316 A JPS59138316 A JP S59138316A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic material
- permeability
- common mode
- winding
- 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
- 239000000696 magnetic material Substances 0.000 claims abstract description 26
- 238000004804 winding Methods 0.000 claims abstract description 23
- 230000035699 permeability Effects 0.000 claims abstract description 19
- 230000000694 effects Effects 0.000 abstract description 8
- 239000007787 solid Substances 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 1
- 238000007796 conventional method Methods 0.000 description 6
- 239000011162 core material Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 238000009738 saturating Methods 0.000 description 1
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
- H01F17/04—Fixed inductances of the signal type with magnetic core
- H01F17/06—Fixed inductances of the signal type with magnetic core with core substantially closed in itself, e.g. toroid
- H01F17/062—Toroidal core with turns of coil around it
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Coils Or Transformers For Communication (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は磁性材料で構成されるコアにおいて、電流が流
れた場合に発生する磁界が互いに打消しあうように巻か
れた２つの巻線を有するコモンモード・チョークコイル
インダクタンス素子の改良に関するものである。゛
従来方法によるコモンモードチョークを第１図に示Ｔｏ
従来方法によるコモンモードチョークの磁性材料は高透
磁率磁性材料１のみで構成されており、巻線２と巻線３
は同じ巻線同構成に巻かれており、巻線２に流れる電流
１１によって発生する磁界Ｈ１と、巻線３に流れる電流
（２によって発生する磁界１」２とが互いに打消す向き
に生じる。Detailed Description of the Invention The present invention provides a common mode choke coil inductance having a core made of a magnetic material and having two windings wound so that the magnetic field generated when current flows cancels each other. This relates to the improvement of elements.゛The common mode choke according to the conventional method is shown in Fig. 1.
The magnetic material of the common mode choke according to the conventional method is composed only of high permeability magnetic material 1, and winding 2 and winding 3.
are wound with the same windings and the same configuration, and the magnetic field H1 generated by the current 11 flowing in the winding 2 and the magnetic field H1 generated by the current (2) flowing in the winding 3 are generated in directions that cancel each other out.
従来方法によるコモンモードフィルタの構成回路を第２
図に示す。この場合、Ｉ＋＝Ｉ２．ｌｌ＋＝Ｈ２が成り
たつ場合には、線間にインダクタンスを生じず、線一対
接地間に大きなインダクタンスを生じ、コモンモードノ
イズの除去に効果を生じる。しかし、高透磁率磁性キ４
料のみで磁性材料が構成されている従来方法では、各巻
線に流れる電流のわずかなアンバランスや巻線の片寄り
等のバラツキによって、［１１≠Ｈ２となり磁性材料が
飽和しやすく、線一対接地間のインダクタンス成分が消
滅しコモンモードノイズ除去効果がなくなってしまう欠
点を有する。The configuration circuit of the common mode filter according to the conventional method is shown in the second section.
As shown in the figure. In this case, I+=I2. When ll+=H2 holds true, no inductance is generated between the lines, but a large inductance is generated between a pair of lines and the ground, which is effective in removing common mode noise. However, high permeability magnetic key 4
In the conventional method, in which the magnetic material is composed only of wires, due to variations such as a slight imbalance in the current flowing through each winding or deviation of the windings, [11≠H2], the magnetic material tends to be saturated, and a pair of wires is grounded. This has the disadvantage that the inductance component between them disappears, and the common mode noise removal effect is lost.
本発明は従来方法の欠点を改良し、各巻線の電流アンバ
ランスおよび巻線のバランスにおいても、磁性材料が飽
和することなく安定かつ大きなコモンモードフィルタ効
果を有するコモンモードチョークコイルを提供すること
を目的とする。The present invention improves the shortcomings of the conventional method and provides a common mode choke coil that has a stable and large common mode filter effect without saturating the magnetic material even in the current unbalance of each winding and the balance of the windings. purpose.
本発明によるコモンモードチョーク用コア材質を、高透
磁率磁性材料と比較的低い透磁率を有する磁性材料とを
磁路に対し平行に配置したことを特徴とする。］モンモ
ードノイズに対し、高透磁率磁性材料によって高いイン
ダクタンスを示し、各巻線の電流アンバランス、巻線の
アンバランスによっても容易に飽和しない磁性材料の２
種類を使用していることが特徴である。The core material for a common mode choke according to the present invention is characterized in that a magnetic material with high magnetic permeability and a magnetic material with relatively low magnetic permeability are arranged parallel to the magnetic path. ] Two types of magnetic materials that exhibit high inductance against Mon-mode noise due to high permeability magnetic materials and are not easily saturated even by current unbalance in each winding or winding unbalance.
It is characterized by the use of different types.
本発明の一実施例を第３図に示す。第３図においては高
透磁率磁性材料１と低透磁率磁性ｔｌＡ斜２か磁路に対
し、平行に配置され一体となっているリングコアに対し
、巻線３，４が巻かれている構造を右ターる。また、第
４図に他の本発明の一実施例を示す。第４図の場合には
、磁路を［Ｉコアによって構成される。第４図の場合に
おいても全く同様な効果を得ることができる。本発明に
よるコモンモードチョークを用いコモンモードフィルタ
を構成した場合の等価回路を第５図に示す。各巻線によ
る磁界がバランスしている場合には、各線間にはインダ
クタンス成分は生じず、高透磁率磁性材料によるインダ
クタンス成分Ｌ１、および低透磁率磁性材料によるイン
ダクタンス成分Ｌ２の直列接続されたものが線一対接地
間に生じ、大きなフィルタ効果を示す。さらに、各巻線
の発生する磁界のアンバランスによって、高透磁率磁性
材料が飽和した場合の等価回路を第６図に示す。An embodiment of the present invention is shown in FIG. In Fig. 3, a structure is shown in which windings 3 and 4 are wound around a ring core that is arranged parallel to the magnetic path of high permeability magnetic material 1 and low permeability magnetic tlA diagonal 2 and integrated. Turn right. Further, FIG. 4 shows another embodiment of the present invention. In the case of FIG. 4, the magnetic path is constituted by an I core. Exactly the same effect can be obtained in the case of FIG. 4 as well. FIG. 5 shows an equivalent circuit when a common mode filter is constructed using the common mode choke according to the present invention. When the magnetic fields from each winding are balanced, no inductance component occurs between each wire, and an inductance component L1 made of a high permeability magnetic material and an inductance component L2 made of a low permeability magnetic material are connected in series. It occurs between a pair of wires and ground, and exhibits a large filtering effect. Further, FIG. 6 shows an equivalent circuit when the high permeability magnetic material is saturated due to the unbalance of the magnetic fields generated by each winding.
この場合においては、低透磁率磁性材料のインダクタン
ス成分Ｌ２の線間および対接地間の両方に生じる。この
Ｌ２により、線間の電流アンバランスが補正されるよう
に働き、また、対接地間のインダクタンスはコモンモー
ドノイズのフィルタ効果を失うことはない。In this case, the inductance component L2 of the low permeability magnetic material occurs both between the lines and between the ground. This L2 works to correct the current imbalance between the lines, and the inductance between the lines and the ground does not lose its common mode noise filtering effect.
以上の各巻線の電流アンバランスに対するコモンモード
チョークのインダクタンス特性を第７図に示す。ａは従
来方式、ｂ、ｅ−は本発明による特性であり、大きなア
ンバランスにおいても充分なインダクタンスを有する。FIG. 7 shows the inductance characteristics of the common mode choke with respect to the current imbalance of each winding. Characteristics a is the conventional method, b and e- are the characteristics according to the present invention, and they have sufficient inductance even in a large unbalance.
ｂおよびＣは高透磁率磁性材料と低透磁率磁性材料の比
を示したものであり、必要に応じた特性を比を変化させ
ることにより容易に得ることができる。b and C indicate the ratio of the high magnetic permeability magnetic material to the low magnetic permeability magnetic material, and desired characteristics can be easily obtained by changing the ratio.
以上説明した通り、本発明によれば各巻線の電流アンバ
ランス、巻線のアンバランスにおいても充分なコモンモ
ードフィルタ効果を安定に得ることかもきる。As explained above, according to the present invention, it is possible to stably obtain a sufficient common mode filter effect even in the case of current unbalance in each winding and winding unbalance.
第１図は従来方式によるコモンモードチョーク、第２図
はコモンモードフィルタの等価回路、第３図、第４図は
本発明によるコモンモードチョークの一実施例、第５図
は本実施例によるコモンモードフィルタの電流アンバラ
ンスのない場合の等何回路、第６図は本発明によるコモ
ンモードフィルタの電流アンバランスのある場合の等価
回路、第７図は従来方式と本発明によるコモンモードチ
ョークのインタフタンス特性図である。
第１図
１．４２
第 ７ 図
第２図
悴 ５ 図
第６図
第 ３ 図
卒 ４ 図Fig. 1 shows a conventional common mode choke, Fig. 2 shows an equivalent circuit of a common mode filter, Figs. 3 and 4 show an example of a common mode choke according to the present invention, and Fig. 5 shows a common mode choke according to this embodiment. Figure 6 is an equivalent circuit for a mode filter with no current imbalance; Figure 6 is an equivalent circuit for a common mode filter according to the present invention when there is a current imbalance; Figure 7 is an interface between a conventional system and a common mode choke according to the present invention. FIG. Figure 1 1.42 Figure 7 Figure 2 Figure 5 Figure 6 Figure 3 Graduation 4 Figure
Claims (1)
路に対し、平行に磁界が発生するように巻かれた巻線３
と、かつ前記磁界と逆方向に同じ大きさの磁界が発生す
るように巻かれた巻線４を有するインダクタンス素子に
おいて、前記磁性材料が初透磁率が５０〜２ 、０００
の磁性材料と、初透磁率が３，０００以上の磁性材料が
前記磁路に対し、平行に配置され、かつ一体となってい
る構造を有することを特徴どするインダクタンス素子。A winding 3 whose magnetic path is made of a magnetic material and is wound so as to generate a magnetic field parallel to the magnetic path of the magnetic material.
and an inductance element having a winding 4 wound so as to generate a magnetic field of the same magnitude in a direction opposite to the magnetic field, wherein the magnetic material has an initial magnetic permeability of 50 to 2,000.
An inductance element characterized in that it has a structure in which a magnetic material having an initial magnetic permeability of 3,000 or more is arranged parallel to the magnetic path and is integral with the magnetic path.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1221883A JPS59138316A (en) | 1983-01-29 | 1983-01-29 | Inductance element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1221883A JPS59138316A (en) | 1983-01-29 | 1983-01-29 | Inductance element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59138316A true JPS59138316A (en) | 1984-08-08 |
Family
ID=11799235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1221883A Pending JPS59138316A (en) | 1983-01-29 | 1983-01-29 | Inductance element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59138316A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0476008U (en) * | 1990-11-13 | 1992-07-02 | ||
| WO1996019867A1 (en) * | 1994-12-19 | 1996-06-27 | B H Electronics | Coupling device connecting an unbalanced signal line to a balanced signal line |
| WO2012134859A3 (en) * | 2011-03-31 | 2013-05-30 | Bose Corporation | Power converter using soft composite magnetic structure |
-
1983
- 1983-01-29 JP JP1221883A patent/JPS59138316A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0476008U (en) * | 1990-11-13 | 1992-07-02 | ||
| WO1996019867A1 (en) * | 1994-12-19 | 1996-06-27 | B H Electronics | Coupling device connecting an unbalanced signal line to a balanced signal line |
| WO2012134859A3 (en) * | 2011-03-31 | 2013-05-30 | Bose Corporation | Power converter using soft composite magnetic structure |
| US8610533B2 (en) | 2011-03-31 | 2013-12-17 | Bose Corporation | Power converter using soft composite magnetic structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6617950B2 (en) | Common mode/differential mode choke | |
| JP3509436B2 (en) | Noise filter | |
| JPS59138316A (en) | Inductance element | |
| JP2585303Y2 (en) | Noise prevention choke coil | |
| US2463778A (en) | Magnetic shielding | |
| US2811699A (en) | Transformer | |
| JPH0362607A (en) | Filter | |
| US3195039A (en) | Electromagnetic transducer | |
| JPH07240319A (en) | Choke coil for both normal mode and common mode | |
| JP7171026B2 (en) | Noise filter | |
| JPH02277203A (en) | Choke coil for common mode use | |
| JP2004288882A (en) | Noise filter | |
| JP2957629B2 (en) | Common mode claw coil | |
| JPS6347909A (en) | Shell type common mode choke coil | |
| JPH03227506A (en) | Normal mode choke coil | |
| US2384819A (en) | Flux valve | |
| US2347584A (en) | Marine sound system | |
| JP2017084943A (en) | choke coil | |
| JPS5881320A (en) | Noise filter | |
| JPS5820129B2 (en) | noise filter | |
| JPS59182514A (en) | Magnetic core for choke coil | |
| JPS58173810A (en) | Inductance element | |
| JPH0133967B2 (en) | ||
| JPS611260A (en) | Noise protecting composite transformer | |
| JPS6213013A (en) | Choke coil |