JPS5824410Y2 - pulse width control transformer - Google Patents
pulse width control transformerInfo
- Publication number
- JPS5824410Y2 JPS5824410Y2 JP1977085426U JP8542677U JPS5824410Y2 JP S5824410 Y2 JPS5824410 Y2 JP S5824410Y2 JP 1977085426 U JP1977085426 U JP 1977085426U JP 8542677 U JP8542677 U JP 8542677U JP S5824410 Y2 JPS5824410 Y2 JP S5824410Y2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- magnetic path
- path
- pulse width
- width control
- 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.)
- Expired
Links
Landscapes
- Coils Or Transformers For Communication (AREA)
Description
【考案の詳細な説明】
本考案はパルス幅制御トランスに係り、とくにスイッチ
ングレギュレータ等の安定化電源に用いるのに適したパ
ルス幅制御トランスに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pulse width control transformer, and particularly to a pulse width control transformer suitable for use in a stabilized power source such as a switching regulator.
パルス幅制御トランスは本考案者提案によるものであり
、第１コイルと２次コイルとを設けた主磁路の他にパス
磁路を設け、このパス磁路の磁化状態を制御コイルに流
す制御電流によって変化させて２次コイルに誘起される
電圧波形のパルス幅を可変制御するものである。The pulse width control transformer was proposed by the present inventor, and is a control system in which a pass magnetic path is provided in addition to a main magnetic path provided with a first coil and a secondary coil, and the magnetization state of this path magnetic path is passed through a control coil. The pulse width of the voltage waveform induced in the secondary coil is variably controlled by changing the current.
第１図はそのパルス幅制御トランスの基本構造を示す。FIG. 1 shows the basic structure of the pulse width control transformer.
この図において、主磁路とパス磁路とを一体に形成した
４本脚の磁心１の中央の脚１Ａには、１次コイル２が巻
回され、脚１Ｂには２次コイル３が巻回される。In this figure, a primary coil 2 is wound around a central leg 1A of a four-legged magnetic core 1 that integrally forms a main magnetic path and a pass magnetic path, and a secondary coil 3 is wound around a leg 1B. It is passed around.
また脚１Ａを挾む両側脚ＩＣ。１Ｄには夫々制御コイル
４Ａ、４Ｂが設けられる。There are also leg ICs on both sides that sandwich leg 1A. 1D is provided with control coils 4A and 4B, respectively.
ここで主磁路は脚ＩＡ、１Ｂを通る磁路で構成され、パ
ス磁路は脚１Ａと脚１Ｃ又は１Ｄを通る磁路で構成され
る。Here, the main magnetic path is composed of a magnetic path passing through the legs IA and 1B, and the path magnetic path is composed of a magnetic path passing through the legs 1A and 1C or 1D.
以上の構成によれば、制御コイル４Ａ、４Ｂに流す制御
電流Ｈによってパス磁路の磁化状態を変えることができ
る。According to the above configuration, the magnetization state of the path magnetic path can be changed by the control current H flowing through the control coils 4A and 4B.
すなわち、入力電圧Ｖｌｎとして矩形波を１次コイル２
に加えたとき、制御電流りが大きければ磁化の度合が強
くなり、入力電圧Ｖｌｎによって生じる磁束により単時
間で磁気飽和に達する。That is, a rectangular wave is input to the primary coil 2 as the input voltage Vln.
When the control current is increased, the degree of magnetization becomes stronger, and magnetic saturation is reached in a single time due to the magnetic flux generated by the input voltage Vln.
このため、２次コイル３に接続された負荷抵抗ＲＬ両端
に生じる出力電圧Ｖ。Therefore, the output voltage V generated across the load resistor RL connected to the secondary coil 3.
ｕｔのパルス幅は長くなる。The pulse width of ut becomes longer.
また、制御電流りが小さければ磁化の度合は弱くなり、
入力電圧■。Also, if the control current is small, the degree of magnetization will be weak.
Input voltage■.
によって生じる磁束によりパス磁路が磁気飽和に達する
までに時間がかかる。It takes time for the path magnetic path to reach magnetic saturation due to the magnetic flux generated by this.
このため、出力電圧■。Ｕ、のパルス幅は短くなる。Therefore, the output voltage ■. The pulse width of U becomes shorter.
ところで、上記基本構造であると、磁心１Ａと磁心１Ｂ
とが垂直になっているため、スペースファクタが悪く、
取付けに必要な面積が大きくなる不都合を生じる。By the way, in the above basic structure, the magnetic core 1A and the magnetic core 1B
Since the and are perpendicular, the space factor is bad,
This results in the inconvenience of increasing the area required for installation.
本考案は、上記の不都合を解消し、取付スペースの有効
利用が可能なパルス幅制御トランスを提供しようとする
ものである。The present invention aims to provide a pulse width control transformer that eliminates the above-mentioned disadvantages and allows effective use of installation space.
第２図乃至第４図において、主磁路はＵＩ磁心１０で、
パス磁路は２個のＵＩ磁心１１ Ａ、１１ Ｂで夫々構
成される。In FIGS. 2 to 4, the main magnetic path is the UI magnetic core 10,
The path magnetic path is composed of two UI magnetic cores 11A and 11B, respectively.
そして、１次コイル２は各磁心の一方の脚に共通に巻回
され、２次コイル３は磁心１０の他方の脚に巻回される
。The primary coil 2 is commonly wound around one leg of each magnetic core, and the secondary coil 3 is wound around the other leg of the magnetic core 10.
また磁心１１ Ａ、１１ Ｂの他方の脚には制御コイル
４Ａ、４Ｂが設けられる。Further, control coils 4A, 4B are provided on the other legs of the magnetic cores 11A, 11B.
それらのＵＩ磁心１０，１１ Ａ、１１ Ｂは、１次コ
イル２を巻回した脚を支点として自由に回動し、各磁心
間の角度を任意に調節できるようになっている。These UI magnetic cores 10, 11A, and 11B can freely rotate around the legs around which the primary coil 2 is wound, and the angle between the respective magnetic cores can be arbitrarily adjusted.
なお、制御コイル４Ａ、４Ｂは直列に接続される。Note that the control coils 4A and 4B are connected in series.
以上の構成において、パス磁路を２個のＵＩ磁心１１
Ａ、１１ Ｂで構成したが、第１図の基本構造のＥＩ磁
心１Ｂを用いた場合と磁気的に同様に作用する。In the above configuration, the path magnetic path is connected to the two UI magnetic cores 11
A, 11B, but it operates magnetically in the same way as when using the EI magnetic core 1B having the basic structure shown in FIG.
従って、入力電圧Ｖｌｎとして矩形波を１次コイル２に
加えたとき、制御コイル４Ａ、４Ｂに流す制御電流ＩＣ
によって２次コイル３の出力電圧Ｖｏｕｔのパルス幅を
制御できる。Therefore, when a rectangular wave is applied to the primary coil 2 as the input voltage Vln, the control current IC flowing through the control coils 4A and 4B
The pulse width of the output voltage Vout of the secondary coil 3 can be controlled by.
しかも、各磁心は回動自在であるから、第３図に示す如
＜ＵＩ磁心１１ Ａ、１１８間の開きを零にして全体の
形状を通常のトランスと同様な扁平なものにすることか
で゛きる。Moreover, since each magnetic core is rotatable, the gap between the UI magnetic cores 11A and 118 can be made zero to make the overall shape flat like a normal transformer, as shown in FIG. I can do it.
また、取付場所に応じて第４図に示す如きＴ型形状にし
たり、他の任意の形状にして使用することが可能である
。Further, depending on the mounting location, it can be used in a T-shape as shown in FIG. 4, or in any other arbitrary shape.
以上説明したように、上記実施例によれば、各磁心１０
，１１ Ａ、１１ Ｂが１次コイル２を巻回した脚を支
点として回動自在となっているので、取付場所の状況に
応じて形状を任意に変えることができる。As explained above, according to the above embodiment, each magnetic core 10
, 11A, and 11B are rotatable around the legs around which the primary coil 2 is wound, so that the shape can be arbitrarily changed depending on the situation of the mounting location.
この結果、取付スペースの有効利用が可能となる。As a result, the mounting space can be used effectively.
また、同一形状の磁心を３組用いればよいから、製造上
有利である。Further, since it is sufficient to use three sets of magnetic cores having the same shape, it is advantageous in manufacturing.
なお、上記実施例ではＵＩ磁心を例にとって説明したが
、ＵＵ磁心の如き閉磁路を或す磁心を３組用いてもよい
。In addition, although the above embodiment has been explained by taking the UI magnetic core as an example, three sets of magnetic cores having a closed magnetic path such as a UU magnetic core may be used.
斜上の様に、本考案によれば、取付スペースの有効利用
が可能なパルス幅制御トランスを得る。As shown above, according to the present invention, a pulse width control transformer is obtained that allows effective use of installation space.
第１図はパルス幅制御トランスの基本構造を示す斜視図
、第２図は本考案に係るパルス幅制御トランスの実施例
を示す斜視図、第３図及び第４図は形状を変えた場合を
示す平面図である。
２・・・・・・１次コイル、３・・・・・・２次コイル
、４Ａ、４Ｂ・・・・・・制御コイル、１０，１１ Ａ
、１１ Ｂ・・・・・・ＵＩ磁心。Fig. 1 is a perspective view showing the basic structure of a pulse width control transformer, Fig. 2 is a perspective view showing an embodiment of the pulse width control transformer according to the present invention, and Figs. 3 and 4 show cases where the shape is changed. FIG. 2...Primary coil, 3...Secondary coil, 4A, 4B...Control coil, 10, 11 A
, 11 B...UI magnetic core.
Claims (1)
に１次コイルを設け、その主磁路に２次コイルを、パス
磁路に制御コイルを夫々設けたパルス幅制御トランスで
あって、主磁路をそれ自体閉磁路を威す第１の磁心で構
成し、パス磁路を各々閉磁路を成す第２、第３の磁心で
構成し、該パス磁路となる第２、第３の磁心に前記制御
コイルを夫々設けかつ両制御コイルを直列に接続すると
ともに、各磁心の一方の脚に共通に各磁心が回動自在と
なるように前記１次コイルを設けたことを特徴とするパ
ルス幅制御トランス。A pulse that has a main magnetic path and a pass magnetic path, a primary coil is provided in common to the main magnetic path and the pass magnetic path, a secondary coil is provided in the main magnetic path, and a control coil is provided in the pass magnetic path. A width control transformer in which the main magnetic path is constituted by a first magnetic core which itself forms a closed magnetic path, and the path magnetic path is constituted by second and third magnetic cores each forming a closed magnetic path. The control coils are respectively provided on the second and third magnetic cores, and both control coils are connected in series, and the primary coil is connected to one leg of each magnetic core so that each magnetic core can rotate freely. A pulse width control transformer characterized by being provided with.
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977085426U JPS5824410Y2 (en) | 1977-06-30 | 1977-06-30 | pulse width control transformer |
| US05/884,953 US4213084A (en) | 1977-05-20 | 1978-03-09 | Variable leakage transformer |
| DE2811205A DE2811205C2 (en) | 1977-05-20 | 1978-03-15 | Transformer with variable output voltage |
| FR7808145A FR2391545A1 (en) | 1977-05-20 | 1978-03-21 | VARIABLE LEAKAGE TRANSFORMER |
| GB20778/78A GB1603386A (en) | 1977-05-20 | 1978-05-19 | Variable leakage transformer |
| GB2680980A GB1603387A (en) | 1977-05-20 | 1978-05-19 | Switched mode power supply |
| US06/081,339 US4327348A (en) | 1977-05-20 | 1979-10-03 | Variable leakage transformer |
| US06/100,011 US4328458A (en) | 1977-05-20 | 1979-12-04 | Variable leakage transformer and control circuit therefore |
| US06/134,113 US4342075A (en) | 1977-05-20 | 1980-03-26 | Switched mode DC to DC converter using variable leakage transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977085426U JPS5824410Y2 (en) | 1977-06-30 | 1977-06-30 | pulse width control transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5412818U JPS5412818U (en) | 1979-01-27 |
| JPS5824410Y2 true JPS5824410Y2 (en) | 1983-05-25 |
Family
ID=29009047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977085426U Expired JPS5824410Y2 (en) | 1977-05-20 | 1977-06-30 | pulse width control transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5824410Y2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6139854Y2 (en) * | 1980-01-14 | 1986-11-14 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4523852Y1 (en) * | 1965-02-22 | 1970-09-19 | ||
| JPS4831419A (en) * | 1971-08-30 | 1973-04-25 | ||
| JPS5147820B2 (en) * | 1972-07-10 | 1976-12-17 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5611382Y2 (en) * | 1974-10-07 | 1981-03-14 |
-
1977
- 1977-06-30 JP JP1977085426U patent/JPS5824410Y2/en not_active Expired
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4523852Y1 (en) * | 1965-02-22 | 1970-09-19 | ||
| JPS4831419A (en) * | 1971-08-30 | 1973-04-25 | ||
| JPS5147820B2 (en) * | 1972-07-10 | 1976-12-17 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5412818U (en) | 1979-01-27 |
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