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JPS5646509A - Circuit for driving electromagnet - Google Patents

Circuit for driving electromagnet

Info

Publication number
JPS5646509A
JPS5646509A JP12208979A JP12208979A JPS5646509A JP S5646509 A JPS5646509 A JP S5646509A JP 12208979 A JP12208979 A JP 12208979A JP 12208979 A JP12208979 A JP 12208979A JP S5646509 A JPS5646509 A JP S5646509A
Authority
JP
Japan
Prior art keywords
electromagnet
current
inductor
switch
generated
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
JP12208979A
Other languages
Japanese (ja)
Inventor
Shunsaku Nakauchi
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.)
Kokusai Gijutsu Kaihatsu Co Ltd
Original Assignee
Kokusai Gijutsu Kaihatsu 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 Kokusai Gijutsu Kaihatsu Co Ltd filed Critical Kokusai Gijutsu Kaihatsu Co Ltd
Priority to JP12208979A priority Critical patent/JPS5646509A/en
Publication of JPS5646509A publication Critical patent/JPS5646509A/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
    • H01F7/1805—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current
    • H01F7/1816—Circuit arrangements for holding the operation of electromagnets or for holding the armature in attracted position with reduced energising current making use of an energy accumulator

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Electromagnets (AREA)

Abstract

PURPOSE:To remarkably reduce the operating time of an electromagnet by flowing a current through an inductor, storing electromagnetic energy in said inductor, and applying said energy to the electromagnet in consonance with the operation of a switch. CONSTITUTION:A switch 1 is normally closed, and a current flows from a power supply 4 to an inductor 2 via a switch 3. The current is denoted as i0. In order to open the electromagnet 1, the switch 3 is opened. Then, a large counter electromotive force is generated in the inductor 2. The current whose magnitude is approximately the same as the current i0 begins to flow in the electromagnet 1 by said counter electromotive force. At the same time, the attracting force is generated in the electromagnet 1 by the magnetomotive force caused by said current. By utilizing the electromagnetic energy stored in the inductor 2 in this way, the current can be quickly flowed in the electromagnet 1 having an inductance, the operation of the electromagnet can be remarkably improved.
JP12208979A 1979-09-25 1979-09-25 Circuit for driving electromagnet Pending JPS5646509A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12208979A JPS5646509A (en) 1979-09-25 1979-09-25 Circuit for driving electromagnet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12208979A JPS5646509A (en) 1979-09-25 1979-09-25 Circuit for driving electromagnet

Publications (1)

Publication Number Publication Date
JPS5646509A true JPS5646509A (en) 1981-04-27

Family

ID=14827370

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12208979A Pending JPS5646509A (en) 1979-09-25 1979-09-25 Circuit for driving electromagnet

Country Status (1)

Country Link
JP (1) JPS5646509A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5049660A (en) * 1973-09-05 1975-05-02

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5049660A (en) * 1973-09-05 1975-05-02

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