JPS62110665U - - Google Patents
Info
- Publication number
- JPS62110665U JPS62110665U JP20468685U JP20468685U JPS62110665U JP S62110665 U JPS62110665 U JP S62110665U JP 20468685 U JP20468685 U JP 20468685U JP 20468685 U JP20468685 U JP 20468685U JP S62110665 U JPS62110665 U JP S62110665U
- Authority
- JP
- Japan
- Prior art keywords
- signal
- outputs
- circuit
- output
- 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
- 230000005284 excitation Effects 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims description 2
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Description
図面は本考案の一実施例を示したもので、第１
図は電磁比例弁制御装置の一部回路図で示したブ
ロツク図、第２図は各信号を示した説明図である
。
１……安定化電源回路、２……直流電圧源、３
……ポテンシヨメータ、４……誤差増幅回路、５
……発振回路、６……比較回路、７……スイツチ
ングトランジスタ、８……励磁コイル、９……電
流検出回路。
The drawing shows one embodiment of the present invention.
The figure is a block diagram showing a partial circuit diagram of the electromagnetic proportional valve control device, and FIG. 2 is an explanatory diagram showing each signal. 1... Stabilized power supply circuit, 2... DC voltage source, 3
... Potentiometer, 4 ... Error amplification circuit, 5
... Oscillator circuit, 6 ... Comparison circuit, 7 ... Switching transistor, 8 ... Excitation coil, 9 ... Current detection circuit.
Claims (1)
御して出力する安定化電源回路と、安定化電源回
路より出力される一定電圧を所望の入力信号に変
更自在に設定して出力するポテンシヨメータと、
ポテンシヨメータより出力される入力信号をフイ
ードバツク信号と比較しその差を出力信号として
出力する誤差増幅回路と、発振回路より出力され
る一定周期の鋸波信号を誤差増幅回路より出力さ
れる出力信号と比較し鋸波信号を出力信号に応じ
てデユーテイフアクタを規定した方形パルス信号
に変換して出力する比較回路と、比較回路より出
力される方形パルス信号に応じて直流電圧源より
電磁比例弁の励磁コイルへ電流を流す通電路を開
閉するスイツチングトランジスタと、励磁コイル
へ流れる電流を検出し平滑したフイードバツク信
号に変換して誤差増幅回路へ出力する電流検出回
路とを具備して成と電磁比例弁制御装置。 A stabilized power supply circuit that controls and outputs the voltage output from the DC voltage source to a constant voltage, and a potentiometer that freely sets and outputs the constant voltage output from the stabilized power supply circuit to a desired input signal. and,
An error amplifier circuit that compares the input signal output from the potentiometer with a feedback signal and outputs the difference as an output signal, and an output signal that outputs a sawtooth wave signal of a constant period from the oscillation circuit from the error amplifier circuit. A comparator circuit that converts the sawtooth signal into a rectangular pulse signal with a defined duty factor according to the output signal and outputs it, and an electromagnetic proportional signal from a DC voltage source according to the rectangular pulse signal output from the comparator circuit. It is equipped with a switching transistor that opens and closes a current flow path that allows current to flow to the excitation coil of the valve, and a current detection circuit that detects the current flowing to the excitation coil, converts it into a smoothed feedback signal, and outputs it to the error amplification circuit. Electromagnetic proportional valve control device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20468685U JPS62110665U (en) | 1985-12-27 | 1985-12-27 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20468685U JPS62110665U (en) | 1985-12-27 | 1985-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62110665U true JPS62110665U (en) | 1987-07-14 |
Family
ID=31170684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20468685U Pending JPS62110665U (en) | 1985-12-27 | 1985-12-27 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62110665U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990008914A1 (en) * | 1989-01-30 | 1990-08-09 | Hitachi Construction Machinery Co., Ltd. | Device for controlling electromagnetic device having a proportional solenoid |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5932708A (en) * | 1982-08-18 | 1984-02-22 | Matsushita Electric Ind Co Ltd | Combustion device |
| JPS5949219B2 (en) * | 1980-03-28 | 1984-12-01 | 昭和電工株式会社 | Production method of β-chloroalanine |
-
1985
- 1985-12-27 JP JP20468685U patent/JPS62110665U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5949219B2 (en) * | 1980-03-28 | 1984-12-01 | 昭和電工株式会社 | Production method of β-chloroalanine |
| JPS5932708A (en) * | 1982-08-18 | 1984-02-22 | Matsushita Electric Ind Co Ltd | Combustion device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1990008914A1 (en) * | 1989-01-30 | 1990-08-09 | Hitachi Construction Machinery Co., Ltd. | Device for controlling electromagnetic device having a proportional solenoid |
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