JPS5937476U - Proportional solenoid valve drive circuit - Google Patents
Proportional solenoid valve drive circuitInfo
- Publication number
- JPS5937476U JPS5937476U JP13301682U JP13301682U JPS5937476U JP S5937476 U JPS5937476 U JP S5937476U JP 13301682 U JP13301682 U JP 13301682U JP 13301682 U JP13301682 U JP 13301682U JP S5937476 U JPS5937476 U JP S5937476U
- Authority
- JP
- Japan
- Prior art keywords
- switching element
- solenoid coil
- drive circuit
- solenoid valve
- input voltage
- 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
第１図は本考案の一実施例を示す回路図、第２図はその
動作説明用の各部波形を示すタイムチャート図、第３図
は本考案のもうひとつの実施例を示す回路図である。
１：ソレノイドコイル、２：第１のスイッチング素子（
トランジスタ）１．８：基準発振器、１０：ダイオード
、１１：第２のスイッチング素子（トランジスタ）、１
３：抵抗、１４：コンデンサ、１５：時定数回路、１６
：ツェナーダイオード、１８：制御回路、１９：コンパ
レータ。Fig. 1 is a circuit diagram showing one embodiment of the present invention, Fig. 2 is a time chart showing waveforms of various parts for explaining its operation, and Fig. 3 is a circuit diagram showing another embodiment of the present invention. . 1: Solenoid coil, 2: First switching element (
Transistor) 1.8: Reference oscillator, 10: Diode, 11: Second switching element (transistor), 1
3: Resistor, 14: Capacitor, 15: Time constant circuit, 16
: Zener diode, 18: Control circuit, 19: Comparator.
Claims (1)
スイッチング素子を、設定入力電圧とソレノイドコイル
に流れる負荷電流の帰還信号との偏差信号を基準発振器
の発振出力と比較して得た駆動パルス信号によって制御
することにより、前記ソレノイドコイルをパルス駆動す
るようにした駆動回路において、前記ソレノイドコイル
に並列に、前記第１のスイッチング素子のターンオフ時
の逆起電力をソレノイドコイルに回生ずるためのダイオ
ードと第２のスイッチング素子との直列回路を接続し、
前記第２のスイッチング素子のスイッチング制御のため
に、前記設定入力電圧が一定の間は前記第２のスイッチ
ング素子を導通可能状態にすると共に前記設定入力電圧
がステップ状に変化して前記偏差信号が逆極性になって
いる間は前記第２のスイッチング素子を遮断状態に保持
す□ る制御回路を設けてなることを特徴とする比例電
磁弁の駆動回路。A drive pulse signal obtained by driving the first switching element connected in series to the solenoid coil of the proportional solenoid valve by comparing the deviation signal between the set input voltage and the feedback signal of the load current flowing through the solenoid coil with the oscillation output of the reference oscillator. In the drive circuit, the solenoid coil is pulse-driven by controlling the solenoid coil, and the drive circuit includes a diode in parallel with the solenoid coil for regenerating back electromotive force when the first switching element is turned off to the solenoid coil. Connect a series circuit with a second switching element,
In order to control the switching of the second switching element, while the set input voltage is constant, the second switching element is made conductive, and the set input voltage is changed in a stepwise manner so that the deviation signal is A driving circuit for a proportional solenoid valve, characterized in that a control circuit is provided to maintain the second switching element in a cut-off state while the polarity is reversed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13301682U JPS5937476U (en) | 1982-09-03 | 1982-09-03 | Proportional solenoid valve drive circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13301682U JPS5937476U (en) | 1982-09-03 | 1982-09-03 | Proportional solenoid valve drive circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5937476U true JPS5937476U (en) | 1984-03-09 |
| JPH0212365Y2 JPH0212365Y2 (en) | 1990-04-06 |
Family
ID=30300195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13301682U Granted JPS5937476U (en) | 1982-09-03 | 1982-09-03 | Proportional solenoid valve drive circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937476U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5597601A (en) * | 1979-01-18 | 1980-07-25 | Nippon Denso Co Ltd | Driving circuit for electromagnetic valve |
| JPS5614668A (en) * | 1979-07-17 | 1981-02-12 | Japan Electronic Control Syst Co Ltd | Current controller for solenoid valve |
-
1982
- 1982-09-03 JP JP13301682U patent/JPS5937476U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5597601A (en) * | 1979-01-18 | 1980-07-25 | Nippon Denso Co Ltd | Driving circuit for electromagnetic valve |
| JPS5614668A (en) * | 1979-07-17 | 1981-02-12 | Japan Electronic Control Syst Co Ltd | Current controller for solenoid valve |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0212365Y2 (en) | 1990-04-06 |
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