JPS56135910A - Driving method for magnet coil - Google Patents

Driving method for magnet coil

Info

Publication number
JPS56135910A
JPS56135910A JP3901280A JP3901280A JPS56135910A JP S56135910 A JPS56135910 A JP S56135910A JP 3901280 A JP3901280 A JP 3901280A JP 3901280 A JP3901280 A JP 3901280A JP S56135910 A JPS56135910 A JP S56135910A
Authority
JP
Japan
Prior art keywords
voltage
power source
magnet coil
driving
driving power
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.)
Granted
Application number
JP3901280A
Other languages
Japanese (ja)
Other versions
JPS6159647B2 (en
Inventor
Hideo Takakusaki
Eiji Ishikawa
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.)
Oki Electric Industry Co Ltd
Original Assignee
Oki Electric Industry 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 Oki Electric Industry Co Ltd filed Critical Oki Electric Industry Co Ltd
Priority to JP3901280A priority Critical patent/JPS56135910A/en
Publication of JPS56135910A publication Critical patent/JPS56135910A/en
Publication of JPS6159647B2 publication Critical patent/JPS6159647B2/ja
Granted 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)
  • Impact Printers (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To stabilize the current of the magnet coil irrespective of the fluctuation of the voltage of a driving power source by turning a transistor ON and OFF by a pulse having a duty inversely proportional to the change in the voltage of the driving power source. CONSTITUTION:Supply of current to the magnet coil 1 is placed under ON-OFF control by driving transistors 2 and 3. A comparator performs control in such a manner that the duty of the pulse turning the driving transistor 3 ON and OFF falls when the voltage VD of the driving power source rises, while, on the contrary, the duty of the pulse turning the driving transistor 3 ON and OFF rises when the voltage VD of the driving power source falls.
JP3901280A 1980-03-28 1980-03-28 Driving method for magnet coil Granted JPS56135910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3901280A JPS56135910A (en) 1980-03-28 1980-03-28 Driving method for magnet coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3901280A JPS56135910A (en) 1980-03-28 1980-03-28 Driving method for magnet coil

Publications (2)

Publication Number Publication Date
JPS56135910A true JPS56135910A (en) 1981-10-23
JPS6159647B2 JPS6159647B2 (en) 1986-12-17

Family

ID=12541183

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3901280A Granted JPS56135910A (en) 1980-03-28 1980-03-28 Driving method for magnet coil

Country Status (1)

Country Link
JP (1) JPS56135910A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01243889A (en) * 1988-03-25 1989-09-28 Janome Sewing Mach Co Ltd Step motor controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01243889A (en) * 1988-03-25 1989-09-28 Janome Sewing Mach Co Ltd Step motor controller

Also Published As

Publication number Publication date
JPS6159647B2 (en) 1986-12-17

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