JPS5775405A - Electromagnet driving circuit - Google Patents

Electromagnet driving circuit

Info

Publication number
JPS5775405A
JPS5775405A JP15190280A JP15190280A JPS5775405A JP S5775405 A JPS5775405 A JP S5775405A JP 15190280 A JP15190280 A JP 15190280A JP 15190280 A JP15190280 A JP 15190280A JP S5775405 A JPS5775405 A JP S5775405A
Authority
JP
Japan
Prior art keywords
signal
electromagnet
circuit
outputted
period
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
JP15190280A
Other languages
Japanese (ja)
Inventor
Isao Tamura
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.)
Tokyo Sanyo Electric Co Ltd
Toshiba TEC Corp
Original Assignee
Tokyo Sanyo Electric Co Ltd
Tokyo Electric 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 Tokyo Sanyo Electric Co Ltd, Tokyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP15190280A priority Critical patent/JPS5775405A/en
Publication of JPS5775405A publication Critical patent/JPS5775405A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/06—Electromagnets; Actuators including electromagnets
    • H01F7/08—Electromagnets; Actuators including electromagnets with armatures
    • H01F7/18—Circuit arrangements for obtaining desired operating characteristics, e.g. for slow operation, for sequential energisation of windings, for high-speed energisation of windings

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Control Of Stepping Motors (AREA)

Abstract

PURPOSE:To obstruct flowing of more current than necessary in an electromagnet and to prevent burning down of the electromagnet and destruction of an electromagnet driving circuit by a method wherein a driving signal is supplied to the electromagnet being limited only for the allowable driving period, and a reset signal is made to be generated when the signal is supplied exceeding the period thereof. CONSTITUTION:When the driving signal AS is outputted from an I/O circuit 3, the signal AS is supplied to a switching transistor 7 passing through an NAND circuit 5, and the electromagnet 8 is driven by flowing of current only for the prescribed period to be decided by an output pulse length TAS. When the signal AS is normal, because output action of the signal AS finishes surely within the allowable driving period TBS set by a monostable multivibrator 9, an abnormal signal DS is not outputted from an NAND circuit 11. When the signal AS is outputted continuously after the lapse of the period TBS, the signal DS is outputted from the circuit 11, a reset signal ES is generated consequently from a monostable multivibrator 12 to reset a CPU2. Accordingly putting out of the signal AS from the circuit 3 is made to stop.
JP15190280A 1980-10-29 1980-10-29 Electromagnet driving circuit Pending JPS5775405A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15190280A JPS5775405A (en) 1980-10-29 1980-10-29 Electromagnet driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15190280A JPS5775405A (en) 1980-10-29 1980-10-29 Electromagnet driving circuit

Publications (1)

Publication Number Publication Date
JPS5775405A true JPS5775405A (en) 1982-05-12

Family

ID=15528683

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15190280A Pending JPS5775405A (en) 1980-10-29 1980-10-29 Electromagnet driving circuit

Country Status (1)

Country Link
JP (1) JPS5775405A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158708U (en) * 1984-03-31 1985-10-22 アンリツ株式会社 Intermittent drive solenoid burnout prevention circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60158708U (en) * 1984-03-31 1985-10-22 アンリツ株式会社 Intermittent drive solenoid burnout prevention circuit

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