JPH01137506U - - Google Patents
Info
- Publication number
- JPH01137506U JPH01137506U JP3370588U JP3370588U JPH01137506U JP H01137506 U JPH01137506 U JP H01137506U JP 3370588 U JP3370588 U JP 3370588U JP 3370588 U JP3370588 U JP 3370588U JP H01137506 U JPH01137506 U JP H01137506U
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- comparator
- solenoids
- current detection
- detection resistor
- 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 6
- 239000003990 capacitor Substances 0.000 claims description 4
- 238000011017 operating method Methods 0.000 description 1
Landscapes
- Testing Electric Properties And Detecting Electric Faults (AREA)
Description
第１図は本考案の検出回路を付加したソレノイ
ドの駆動回路の一例、第２図はソレノイドの駆動
回路の一例、第３図は本考案の検出回路の操作手
順を示すフローチヤート、第４図は同じく各部の
動作とこれに対応する電圧・信号の変化を示すタ
イムチヤートである。
１……直流電源、２……コンパレータ、Ｓ１〜
Ｓｎ……ソレノイド、Ｒ１……電流検出抵抗、Ｓ
Ｗ……スイツチ、Ｃ……コンデンサ。
Fig. 1 is an example of a solenoid drive circuit to which the detection circuit of the present invention is added, Fig. 2 is an example of a solenoid drive circuit, Fig. 3 is a flow chart showing the operating procedure of the detection circuit of the present invention, and Fig. 4 Similarly, is a time chart showing the operation of each part and the corresponding changes in voltage and signals. 1...DC power supply, 2...Comparator, S1~
Sn... Solenoid, R1... Current detection resistor, S
W...Switch, C...Capacitor.
Claims (1)
数のソレノイドＳ１〜Ｓｎを互いに並列に接続し
、該並列回路の一端を直流電源１に接続すると共
に、他端を所定の抵抗値を有する電流検出抵抗Ｒ
１に接続し、該電流検出抵抗Ｒ１に生じる電圧を
記憶するコンデンサＣと、これを所定のタイミン
グで充放電させるスイツチＳＷと、前記コンデン
サＣに記憶された電圧と所定の基準電圧とを比較
するコンパレータ２とを設け、遂次に駆動される
べき前記ソレノイドＳ１〜Ｓｎの動作状態の良否
を該コンパレータ２の出力に応じて判定すること
を特徴とするソレノイド群の動作検出回路。 A plurality of solenoids S1 to Sn each having a drive circuit connected in series are connected in parallel to each other, one end of the parallel circuit is connected to the DC power supply 1, and the other end is connected to a current detection resistor R having a predetermined resistance value.
A capacitor C that is connected to the capacitor C and stores the voltage generated in the current detection resistor R1, a switch SW that charges and discharges it at a predetermined timing, and a voltage stored in the capacitor C and a predetermined reference voltage are compared. 1. A solenoid group operation detection circuit comprising a comparator 2, and determining whether the operating states of the solenoids S1 to Sn to be sequentially driven are good or bad according to the output of the comparator 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3370588U JPH01137506U (en) | 1988-03-16 | 1988-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3370588U JPH01137506U (en) | 1988-03-16 | 1988-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01137506U true JPH01137506U (en) | 1989-09-20 |
Family
ID=31260396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3370588U Pending JPH01137506U (en) | 1988-03-16 | 1988-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01137506U (en) |
-
1988
- 1988-03-16 JP JP3370588U patent/JPH01137506U/ja active Pending
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