JPS5627530A - Contactless inductive load driver - Google Patents

Contactless inductive load driver

Info

Publication number
JPS5627530A
JPS5627530A JP10206779A JP10206779A JPS5627530A JP S5627530 A JPS5627530 A JP S5627530A JP 10206779 A JP10206779 A JP 10206779A JP 10206779 A JP10206779 A JP 10206779A JP S5627530 A JPS5627530 A JP S5627530A
Authority
JP
Japan
Prior art keywords
diode
electric current
inductive load
time
transistor
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
JP10206779A
Other languages
Japanese (ja)
Inventor
Yoshishi Nomura
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.)
Shibaura Machine Co Ltd
Original Assignee
Toshiba Machine 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 Toshiba Machine Co Ltd filed Critical Toshiba Machine Co Ltd
Priority to JP10206779A priority Critical patent/JPS5627530A/en
Publication of JPS5627530A publication Critical patent/JPS5627530A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads

Landscapes

  • Feedback Control In General (AREA)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To increase the speed of clutch operation by detecting an induced voltage generated when electric current to an inductive load is cut off and by negatively feeding it back to the base of the transistor of a controller. CONSTITUTION:Input signal IN turns on transistor TR8 and turns off TR12. At this time, an induced voltage is developed across the clutch coil and the potential at point (a) is to rise to thousands V. Once the potential at point (a) exceeds the Zener voltage of constant voltage diode 15, electric current flows to the base of TR12 by way of diode 15, resistance 16 and diode 17, turning on TR12 again. As a result, the relay circuit cuts off the coil current and an arc between contacts can, therefore, cut off the electric current in a time nearly equal to a time lag when energy is consumed, so that the time lag due to various causes can be prevented.
JP10206779A 1979-08-11 1979-08-11 Contactless inductive load driver Pending JPS5627530A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10206779A JPS5627530A (en) 1979-08-11 1979-08-11 Contactless inductive load driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10206779A JPS5627530A (en) 1979-08-11 1979-08-11 Contactless inductive load driver

Publications (1)

Publication Number Publication Date
JPS5627530A true JPS5627530A (en) 1981-03-17

Family

ID=14317411

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10206779A Pending JPS5627530A (en) 1979-08-11 1979-08-11 Contactless inductive load driver

Country Status (1)

Country Link
JP (1) JPS5627530A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631628A (en) * 1983-06-08 1986-12-23 Chrysler Motors Corporation Electronic fuel injector driver circuit
JPH0354913A (en) * 1989-07-24 1991-03-08 Meiji Natl Ind Co Ltd Transistor driving circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4631628A (en) * 1983-06-08 1986-12-23 Chrysler Motors Corporation Electronic fuel injector driver circuit
JPH0354913A (en) * 1989-07-24 1991-03-08 Meiji Natl Ind Co Ltd Transistor driving circuit

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