JPS596805U - Proportional solenoid drive circuit - Google Patents
Proportional solenoid drive circuitInfo
- Publication number
- JPS596805U JPS596805U JP10266482U JP10266482U JPS596805U JP S596805 U JPS596805 U JP S596805U JP 10266482 U JP10266482 U JP 10266482U JP 10266482 U JP10266482 U JP 10266482U JP S596805 U JPS596805 U JP S596805U
- Authority
- JP
- Japan
- Prior art keywords
- coil
- current detection
- current
- magnetic field
- transistor
- 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.)
- Granted
Links
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
図面は本願の実施例を示すもので、第１図は駆動回路の
ブロック図、第２図乃至第４図は第１図の回路の動作を
説明する為の波形図、第５図はソレノイドコイルの電流
検出部の構成を示す部分図、第６図はホニルＩＣの動作
を説明する為の図、第７図は指令信号電圧とソレノイド
コイルの電流との関係を示すグラフ、第８図は異なる実
施例を示す第５図と類型の図、第９図は従来の駆動回路
を示すブロック図。
１０・・・・・・電源、１１・・・・・・整流回路、１
３・・曲ソ −レノイドコイル、１４・・・・
・・制御回路、１９・・・・・・指令信号入力端子、１
６・・・・・・電流検出コイル、２９・・・・・・ホー
ルＩＣ，３８・・・・・・バイアス磁界付加用コイル。The drawings show an embodiment of the present application, and Fig. 1 is a block diagram of the drive circuit, Figs. 2 to 4 are waveform diagrams for explaining the operation of the circuit in Fig. 1, and Fig. 5 is a solenoid coil. Figure 6 is a diagram to explain the operation of the Honil IC, Figure 7 is a graph showing the relationship between the command signal voltage and the current of the solenoid coil, and Figure 8 is different. FIG. 5 is a diagram similar to that of the embodiment, and FIG. 9 is a block diagram showing a conventional drive circuit. 10... Power supply, 11... Rectifier circuit, 1
3...Curved solenoid coil, 14...
...Control circuit, 19...Command signal input terminal, 1
6... Current detection coil, 29... Hall IC, 38... Bias magnetic field addition coil.
Claims (1)
整流回路の直流側にはソレノイドコイルとそのコイルに
流れる電流を制御するようにしたトランジスタとを接続
し、しかも上記ソレノイドコイルにはそこに流れる電流
の大きさを検出してそれに応じた出力信号を生ずるよう
にした電流検出部材を付設し、−力指令信号を入力する
ようにした指令信号入力端子と上記トランジスタにおけ
る制御端子との間には、上記電流検出部材の出力信号を
受けて、上記ソレノイドコイルに流れる電流が上記指令
信号入力端子に加えられる指令信号に対応した値となる
ように上記トランジスタを制御するようにした制御回路
を接続している比例ソレノイド、駆動回路において、上
記電流検出部材は、上記ソレノイドコイルに直列に接続
した電流検出コイルと、その電流検出コイルに流れる電
流によって該コイルから生ずる磁界を検出し得るように
電流検出コイルに付勢すると共に、その磁界の強さに応
じた大きさの出力信号を上記制御回路に与えるようにし
たホールＩＣと、該ホールＩＣの出力゛信号の大きさが
上記電流検出コイルに生ずる磁界の強さと比例関係とな
るようにする為のバイアス磁界を上記ホールＩＣに付加
するようにしたバイアス磁界付加部材とから成り、一方
、上記制御回路と上記トランジスタとの間にはフォトア
イソレータを介設させたことを特徴とする比例ソレノイ
ド駆動回路。The AC side of the rectifier circuit is connected to the commercial power source, and the DC side of the rectifier circuit is connected to a solenoid coil and a transistor that controls the current flowing through the coil. A current detection member that detects the magnitude of the flowing current and generates an output signal corresponding to the magnitude of the flowing current is attached, and is connected between the command signal input terminal to which the force command signal is input and the control terminal of the transistor. is connected to a control circuit configured to receive an output signal from the current detection member and control the transistor so that the current flowing through the solenoid coil has a value corresponding to a command signal applied to the command signal input terminal. In the proportional solenoid and drive circuit, the current detection member includes a current detection coil connected in series with the solenoid coil, and a current detection member configured to detect a magnetic field generated from the coil by a current flowing through the current detection coil. A Hall IC that energizes the coil and provides the control circuit with an output signal of a magnitude corresponding to the strength of the magnetic field, and the magnitude of the output signal of the Hall IC is generated in the current detection coil. and a bias magnetic field adding member that applies a bias magnetic field to the Hall IC so as to have a proportional relationship with the strength of the magnetic field, while a photo-isolator is interposed between the control circuit and the transistor. A proportional solenoid drive circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10266482U JPS596805U (en) | 1982-07-07 | 1982-07-07 | Proportional solenoid drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10266482U JPS596805U (en) | 1982-07-07 | 1982-07-07 | Proportional solenoid drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS596805U true JPS596805U (en) | 1984-01-17 |
| JPS626660Y2 JPS626660Y2 (en) | 1987-02-16 |
Family
ID=30241879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10266482U Granted JPS596805U (en) | 1982-07-07 | 1982-07-07 | Proportional solenoid drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS596805U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0457303A (en) * | 1990-06-27 | 1992-02-25 | Komatsu Ltd | Inductance load driving circuit |
| JPH0518475A (en) * | 1991-07-12 | 1993-01-26 | Rinnai Corp | Proportional valve driving device |
-
1982
- 1982-07-07 JP JP10266482U patent/JPS596805U/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0457303A (en) * | 1990-06-27 | 1992-02-25 | Komatsu Ltd | Inductance load driving circuit |
| JPH0518475A (en) * | 1991-07-12 | 1993-01-26 | Rinnai Corp | Proportional valve driving device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS626660Y2 (en) | 1987-02-16 |
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