JPS61157306U - - Google Patents
Info
- Publication number
- JPS61157306U JPS61157306U JP4108885U JP4108885U JPS61157306U JP S61157306 U JPS61157306 U JP S61157306U JP 4108885 U JP4108885 U JP 4108885U JP 4108885 U JP4108885 U JP 4108885U JP S61157306 U JPS61157306 U JP S61157306U
- Authority
- JP
- Japan
- Prior art keywords
- electromagnetic actuator
- voltage
- drive circuit
- actuator drive
- current
- 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
- 230000003321 amplification Effects 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 3
- 238000009499 grossing Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案の一実施例の回路図、第２図は
従来の電磁作動器駆動回路の一例を示す回路図、
第３図は従来の電磁作動器駆動回路の他の例を示
す回路図である。
１……ソレノイド、２……トランジスタ、３…
…抵抗、４……差動増幅回路、１０……可変デユ
ーテイ発振器、１１……増幅回路、１２……ロー
パスフイルタ。
Fig. 1 is a circuit diagram of an embodiment of the present invention, Fig. 2 is a circuit diagram showing an example of a conventional electromagnetic actuator drive circuit,
FIG. 3 is a circuit diagram showing another example of a conventional electromagnetic actuator drive circuit. 1...Solenoid, 2...Transistor, 3...
...Resistor, 4...Differential amplifier circuit, 10...Variable duty oscillator, 11...Amplification circuit, 12...Low pass filter.
Claims (1)
子電圧として検出する電流検出用抵抗と、 前記端子電圧と前記脈流電圧とを二入力とする
差動増幅回路と、 前記ソレノイドおよび電流検出用抵抗に直列に
接続され、前記差動増幅回路の出力に応じて前記
ソレノイドに供給する電流を制御する電流制御手
段と を具備したことを特徴とする電磁作動器駆動回路
。 (2) 前記脈流電圧発生手段が、電磁弁の開度を
制御する可変デユーテイ比のパルス状制御入力電
圧を出力するパルス発生手段と、前記パルス発生
手段の出力パルスを平滑化して脈流電圧に変換す
るフイルタとから形成されていることを特徴とす
る前記実用新案登録請求の範囲第１項記載の電磁
作動器駆動回路。 (3) 前記フイルタのしや断周波数が、前記電磁
弁の追従あるいは応答周波数以下であることを特
徴とする前記実用新案登録請求の範囲第１項また
は第２項記載の電磁作動器駆動回路。 (4) 前記電流検出用抵抗の端子電圧を増幅して
前記差動増幅回路に入力するようにしたことを特
徴とする前記実用新案登録請求の範囲第１項、第
２項または第３項記載の電磁作動器駆動回路。[Claims for Utility Model Registration] (1) A means for generating pulsating voltage, a current detection resistor for detecting the current supplied to the solenoid of the electromagnetic actuator as a terminal voltage, and the terminal voltage and the pulsating voltage. and a current control means connected in series to the solenoid and a current detection resistor to control the current supplied to the solenoid according to the output of the differential amplification circuit. An electromagnetic actuator drive circuit characterized by: (2) The pulsating current voltage generating means includes a pulse generating means that outputs a pulsed control input voltage with a variable duty ratio that controls the opening degree of the solenoid valve, and a pulsating current voltage by smoothing the output pulse of the pulse generating means. 2. The electromagnetic actuator drive circuit according to claim 1, characterized in that the electromagnetic actuator drive circuit is formed of a filter for converting into . (3) The electromagnetic actuator drive circuit according to claim 1 or 2, wherein the cut-off frequency of the filter is lower than the tracking or response frequency of the electromagnetic valve. (4) Claims 1, 2, or 3 of the utility model registration claim, characterized in that the terminal voltage of the current detection resistor is amplified and input to the differential amplifier circuit. electromagnetic actuator drive circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4108885U JPS61157306U (en) | 1985-03-22 | 1985-03-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4108885U JPS61157306U (en) | 1985-03-22 | 1985-03-22 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61157306U true JPS61157306U (en) | 1986-09-30 |
Family
ID=30550582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4108885U Pending JPS61157306U (en) | 1985-03-22 | 1985-03-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61157306U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE42669E1 (en) | 1995-08-11 | 2011-09-06 | Zenon Technology Partnership | Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |
-
1985
- 1985-03-22 JP JP4108885U patent/JPS61157306U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USRE42669E1 (en) | 1995-08-11 | 2011-09-06 | Zenon Technology Partnership | Vertical cylindrical skein of hollow fiber membranes and method of maintaining clean fiber surfaces |