JPS5647810A - Electromagnetic valve driving circuit - Google Patents
Electromagnetic valve driving circuitInfo
- Publication number
- JPS5647810A JPS5647810A JP12389379A JP12389379A JPS5647810A JP S5647810 A JPS5647810 A JP S5647810A JP 12389379 A JP12389379 A JP 12389379A JP 12389379 A JP12389379 A JP 12389379A JP S5647810 A JPS5647810 A JP S5647810A
- Authority
- JP
- Japan
- Prior art keywords
- icoil
- electromagnetic valve
- switch
- level
- valve
- 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
Landscapes
- Magnetically Actuated Valves (AREA)
- Flow Control (AREA)
Abstract
PURPOSE: To get rid of answer delay of an electromagnetic valve and perform precise control, by detecting and feeding back the value of a current flowing in a coil of the electromagnetic valve, and controlling a driving current of the electromagnetic valve.
CONSTITUTION: The switch is turned on in accordance with a signal Ti which instructs the open-valve, and a current Icoil flows in a driving coil of the electromagnetic valve. When Icoil reaches the level A, the comparator opertes, opens said switch and closes other switch. As a result, Icoil is reduced. When Icoil is reduced and reaches the level C, the comaprator operates once again, makes the switch operate so that Icoil is increased. After that, when Icoil reaches the level B, the switch is made to operate once again so as to reduce Icoil. Subsequently, the electromagnetic valve is driven in accordance with Icoil between the level A and the level B, which is set by utilizing the hysteresis of the open-valve and the close-valve.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12389379A JPS5647810A (en) | 1979-09-28 | 1979-09-28 | Electromagnetic valve driving circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12389379A JPS5647810A (en) | 1979-09-28 | 1979-09-28 | Electromagnetic valve driving circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5647810A true JPS5647810A (en) | 1981-04-30 |
Family
ID=14871945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12389379A Pending JPS5647810A (en) | 1979-09-28 | 1979-09-28 | Electromagnetic valve driving circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647810A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6239823U (en) * | 1985-08-26 | 1987-03-10 | ||
CN103291384A (en) * | 2013-06-06 | 2013-09-11 | 杭州和利时自动化有限公司 | Driving circuit of electromagnetic valve |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317833A (en) * | 1976-07-31 | 1978-02-18 | Japan Electronic Control Syst | Device for actuating fuel injection electromagnetic valve |
-
1979
- 1979-09-28 JP JP12389379A patent/JPS5647810A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5317833A (en) * | 1976-07-31 | 1978-02-18 | Japan Electronic Control Syst | Device for actuating fuel injection electromagnetic valve |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6239823U (en) * | 1985-08-26 | 1987-03-10 | ||
CN103291384A (en) * | 2013-06-06 | 2013-09-11 | 杭州和利时自动化有限公司 | Driving circuit of electromagnetic valve |
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