JPS61162017U - - Google Patents
Info
- Publication number
- JPS61162017U JPS61162017U JP4384085U JP4384085U JPS61162017U JP S61162017 U JPS61162017 U JP S61162017U JP 4384085 U JP4384085 U JP 4384085U JP 4384085 U JP4384085 U JP 4384085U JP S61162017 U JPS61162017 U JP S61162017U
- Authority
- JP
- Japan
- Prior art keywords
- solenoid
- voltage
- series
- transistor
- interposed
- 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
- 238000001514 detection method Methods 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000013256 coordination polymer Substances 0.000 description 1
Description
第１図は本考案によるソレノイド駆動回路の一
実施例を示す回路図、第２図はその動作例を示す
波形チヤート、第３図は従来のソレノイド駆動回
路の構成を示す回路図、第４図はリニアソレノイ
ドの電気―機械変換特性を示す図、第５図はリニ
アソレノイドの好適な駆動電流波形を示す図、第
６図は指令電圧と端子電圧のそれぞれの波形を互
いに対比させて示す図である。
Ａ２……差動増幅回路、ＣＰ……比較回路、Ｌ
……リニアソレノイド、Ｄ１……第１のダイオー
ド、Ｄ２……第２のダイオード、Ｑ１，Ｑ２……
トランジスタ、Ｒｓ……電流検出用抵抗、Ｖｉｎ
……指令電圧、Ｖ１……ソレノイドＬからのフイ
ードバツク電圧、Ｖ３……差動増幅回路Ａ２に実
際に入力される電圧、ＶＢ……電源となる車載バ
ツテリ。
Fig. 1 is a circuit diagram showing an embodiment of the solenoid drive circuit according to the present invention, Fig. 2 is a waveform chart showing an example of its operation, Fig. 3 is a circuit diagram showing the configuration of a conventional solenoid drive circuit, and Fig. 4 Figure 5 is a diagram showing the electric-mechanical conversion characteristics of a linear solenoid, Figure 5 is a diagram showing a suitable drive current waveform for a linear solenoid, and Figure 6 is a diagram showing the respective waveforms of command voltage and terminal voltage in comparison with each other. be. A2...differential amplifier circuit, CP...comparison circuit, L
... Linear solenoid, D1 ... First diode, D2 ... Second diode, Q1, Q2 ...
Transistor, Rs... Resistor for current detection, Vin
...Command voltage, V1...Feedback voltage from solenoid L, V3...Voltage actually input to differential amplifier circuit A2, VB...Vehicle battery that serves as a power source.
Claims (1)
ノイドの駆動電流を制御するトランジスタと、こ
のトランジスタとソレノイドの間に直列に介在さ
せられた電流検出用抵抗と、この電流検出用抵抗
の両端に現れる分圧電圧を検出する差動増幅回路
と、この差動増幅回路の出力電圧を指令電圧と比
較する比較回路とを備え、この比較回路の比較出
力によつて上記トランジスタの導通状態をフイー
ドバツク制御するようにしたソレノイド駆動回路
において、上記指令電圧に交流電圧を重畳させる
と共に、上記ソレノイドに並列に接続して該ソレ
ノイドからの自己誘導電圧をバイパスする第１の
ダイオードと、上記電流検出用抵抗と上記ソレノ
イドの間に直列に介在して該ソレノイドからの自
己誘導電圧を阻止する第２のダイオードとを設け
たことを特徴とするソレノイド駆動回路。 A transistor that controls the drive current of the solenoid is interposed in series between the power supply and the solenoid, a current detection resistor is interposed in series between the transistor and the solenoid, and a component appearing across the current detection resistor is connected in series to the solenoid. The device includes a differential amplifier circuit for detecting piezoelectric voltage, and a comparison circuit for comparing the output voltage of the differential amplifier circuit with a command voltage, and the conduction state of the transistor is feedback-controlled by the comparison output of the comparison circuit. In the solenoid drive circuit, the first diode superimposes an alternating current voltage on the command voltage and is connected in parallel to the solenoid to bypass the self-induced voltage from the solenoid, the current detection resistor, and the solenoid. and a second diode interposed in series between the solenoid and the solenoid to block self-induced voltage from the solenoid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4384085U JPS61162017U (en) | 1985-03-28 | 1985-03-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4384085U JPS61162017U (en) | 1985-03-28 | 1985-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61162017U true JPS61162017U (en) | 1986-10-07 |
Family
ID=30555875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4384085U Pending JPS61162017U (en) | 1985-03-28 | 1985-03-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61162017U (en) |
-
1985
- 1985-03-28 JP JP4384085U patent/JPS61162017U/ja active Pending
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