JPS55120111A - Current limiter for electromagnetic switch - Google Patents

Current limiter for electromagnetic switch

Info

Publication number
JPS55120111A
JPS55120111A JP2795379A JP2795379A JPS55120111A JP S55120111 A JPS55120111 A JP S55120111A JP 2795379 A JP2795379 A JP 2795379A JP 2795379 A JP2795379 A JP 2795379A JP S55120111 A JPS55120111 A JP S55120111A
Authority
JP
Japan
Prior art keywords
pulse
circuit
depending
terminal
potential
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
Application number
JP2795379A
Other languages
Japanese (ja)
Inventor
Naomi Tomizawa
Hiroshi Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Unisia Automotive Ltd
Original Assignee
Japan Electronic Control Systems Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Japan Electronic Control Systems Co Ltd filed Critical Japan Electronic Control Systems Co Ltd
Priority to JP2795379A priority Critical patent/JPS55120111A/en
Publication of JPS55120111A publication Critical patent/JPS55120111A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)

Abstract

PURPOSE:To perform secure current control depending on a pulse width in a simple circuit by improving the linearity of the operation time of a device even in the region wherein the width of the control pulse is small. CONSTITUTION:A control pulse t1 is input to a terminal 3 and amplified. Then, the phase of the pulse is inverted (4), and the pulse is applied to a driver 2 via an NOR circuit 5. At this time, a voltage 6 is generated depending on the current from an electromagnetic valve 1. This potential is given to one terminal of an operation amplifier OP2 by way of a resistor R12 and capacitor C, and a positive potential 10 is given to the output terminal. A reference potential divided at a point P3 is given to the + terminal. At this time, the potential at the point P3 is varied DELTAI by a resistor R15 depending on 2 reference potentials which determin the minimum value I2 and the maximum value I3 of the current of the electromagnetic valve 1. The phase of the output of the operation amplifier OP2 is inverted 12 and is input to the NOR circuit 5. When a circuit 9 which operates depending on the control pulse ti is at a low level, a circuit 8 is turned on, and the counter emf of the electromagnetic vlave 1 is absorbed. The number of the adjusting portions of this curcuit is few, and secure current control depending on the width of the control pulse is performed.
JP2795379A 1979-03-09 1979-03-09 Current limiter for electromagnetic switch Pending JPS55120111A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2795379A JPS55120111A (en) 1979-03-09 1979-03-09 Current limiter for electromagnetic switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2795379A JPS55120111A (en) 1979-03-09 1979-03-09 Current limiter for electromagnetic switch

Publications (1)

Publication Number Publication Date
JPS55120111A true JPS55120111A (en) 1980-09-16

Family

ID=12235249

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2795379A Pending JPS55120111A (en) 1979-03-09 1979-03-09 Current limiter for electromagnetic switch

Country Status (1)

Country Link
JP (1) JPS55120111A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195827A (en) * 1981-05-26 1982-12-01 Japan Electronic Control Syst Co Ltd Solenoid valve driver circuit
JPS57195826A (en) * 1981-05-26 1982-12-01 Japan Electronic Control Syst Co Ltd Solenoid valve driver circuit
JPS63232065A (en) * 1987-03-20 1988-09-28 Akebono Brake Ind Co Ltd Drive method and circuit for valve device
WO2000044007A1 (en) * 1999-01-20 2000-07-27 Unisia Jecs Corporation Solenoid valve control apparatus and brake control apparatus
WO2007085500A1 (en) * 2006-01-20 2007-08-02 Continental Automotive Gmbh Method and apparatus for operating an injection valve

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57195827A (en) * 1981-05-26 1982-12-01 Japan Electronic Control Syst Co Ltd Solenoid valve driver circuit
JPS57195826A (en) * 1981-05-26 1982-12-01 Japan Electronic Control Syst Co Ltd Solenoid valve driver circuit
JPH0137630B2 (en) * 1981-05-26 1989-08-08 Nippon Denshi Kiki Kk
JPS63232065A (en) * 1987-03-20 1988-09-28 Akebono Brake Ind Co Ltd Drive method and circuit for valve device
WO2000044007A1 (en) * 1999-01-20 2000-07-27 Unisia Jecs Corporation Solenoid valve control apparatus and brake control apparatus
US6322166B1 (en) 1999-01-20 2001-11-27 Unisia Jecs Corporation Solenoid valve control apparatus and brake control apparatus
WO2007085500A1 (en) * 2006-01-20 2007-08-02 Continental Automotive Gmbh Method and apparatus for operating an injection valve
US8128004B2 (en) 2006-01-20 2012-03-06 Continental Automotive Gmbh Method and apparatus for operating an injection valve

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