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JPS5637612A - Demagnetizing device - Google Patents

Demagnetizing device

Info

Publication number
JPS5637612A
JPS5637612A JP11327579A JP11327579A JPS5637612A JP S5637612 A JPS5637612 A JP S5637612A JP 11327579 A JP11327579 A JP 11327579A JP 11327579 A JP11327579 A JP 11327579A JP S5637612 A JPS5637612 A JP S5637612A
Authority
JP
Japan
Prior art keywords
converter
demagnetization
load
electricity
flow
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
JP11327579A
Other languages
Japanese (ja)
Other versions
JPS5826811B2 (en
Inventor
Yoshisada Hata
Yoshiaki Naruse
Hiroshi Kataoka
Hisao Hirata
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.)
FUJI JIKOU KK
Stanley Electric Co Ltd
JTEKT Column Systems Corp
Original Assignee
FUJI JIKOU KK
Fuji Kiko Co Ltd
Stanley 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 FUJI JIKOU KK, Fuji Kiko Co Ltd, Stanley Electric Co Ltd filed Critical FUJI JIKOU KK
Priority to JP11327579A priority Critical patent/JPS5826811B2/en
Publication of JPS5637612A publication Critical patent/JPS5637612A/en
Publication of JPS5826811B2 publication Critical patent/JPS5826811B2/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00—Apparatus or processes for magnetising or demagnetising
    • H01F13/006—Methods and devices for demagnetising of magnetic bodies, e.g. workpieces, sheet material

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To demagnetize without occurring the failure in demagnetization or the like by performing a flow of electricity to a load by a converter having no contacts wherein the switching of the polarity is done while the width of the flow of electricity is gradually decreased. CONSTITUTION:A converter 4 consisting of transistors Tr 4a-4d is connected to a load 1 trying magnetization or demagnetization and an output from a transformer 2 for setting supply voltage is supplied to the load 1. A control circuit 5 setting the operation condition such as the width of the flow of electricity of the converter 4 or the like is connected across the transformer 2 and the converter 4. And operation is performed so that a demagnetizing time by the timer circuit in the control circuit 5 and the supply voltage to the load 1 may gradually be decreased on the output voltage may gradually be increased at the time when the device works. Perfect demagnetization may perform without occurring the failure in demagnetization or the like by stopping the operation of the converter 4 at the time when the voltage reaches the maximum upper limit.
JP11327579A 1979-09-04 1979-09-04 Demagnetizing device Expired JPS5826811B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11327579A JPS5826811B2 (en) 1979-09-04 1979-09-04 Demagnetizing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11327579A JPS5826811B2 (en) 1979-09-04 1979-09-04 Demagnetizing device

Publications (2)

Publication Number Publication Date
JPS5637612A true JPS5637612A (en) 1981-04-11
JPS5826811B2 JPS5826811B2 (en) 1983-06-06

Family

ID=14608038

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11327579A Expired JPS5826811B2 (en) 1979-09-04 1979-09-04 Demagnetizing device

Country Status (1)

Country Link
JP (1) JPS5826811B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992432U (en) * 1982-12-14 1984-06-22 パイオニア株式会社 Tape recorder interlocking circuit
JPS6235432U (en) * 1985-08-09 1987-03-02
JPH01229482A (en) * 1988-03-09 1989-09-13 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPH0215483A (en) * 1988-07-01 1990-01-19 Pioneer Electron Corp Magazine-type compact disk player

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59172508U (en) * 1983-05-07 1984-11-17 株式会社久保田農機製作所 seedling transplanter

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5992432U (en) * 1982-12-14 1984-06-22 パイオニア株式会社 Tape recorder interlocking circuit
JPS6235432U (en) * 1985-08-09 1987-03-02
JPH01229482A (en) * 1988-03-09 1989-09-13 Mitsubishi Electric Corp Magnetic recording and reproducing device
JPH0215483A (en) * 1988-07-01 1990-01-19 Pioneer Electron Corp Magazine-type compact disk player

Also Published As

Publication number Publication date
JPS5826811B2 (en) 1983-06-06

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