JPS54151324A - Demagnetizer - Google Patents

Demagnetizer

Info

Publication number
JPS54151324A
JPS54151324A JP6013178A JP6013178A JPS54151324A JP S54151324 A JPS54151324 A JP S54151324A JP 6013178 A JP6013178 A JP 6013178A JP 6013178 A JP6013178 A JP 6013178A JP S54151324 A JPS54151324 A JP S54151324A
Authority
JP
Japan
Prior art keywords
voltage
conductive
power supply
immediately
low
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
JP6013178A
Other languages
Japanese (ja)
Inventor
Michio Furuhashi
Toshiaki Hosoki
Masaru 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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP6013178A priority Critical patent/JPS54151324A/en
Publication of JPS54151324A publication Critical patent/JPS54151324A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To enable to automatically select power supply voltage depending on AC voltage and to enable to supply to attenuation current sufficiently required for the demagnetizing coil.
CONSTITUTION: Be selecting the Zener voltage of the Zener diode 96 at a higher value than the low voltage division voltage, this Zener voltage diode 96 is conductive only when the AC power supply voltage is higher, and it causes the transistor 97 to be conductive, but when the AC power supply voltage is low, it is non- conductive. Thus, the transistor 98 is non-conductive when it is high and conductive, when it is low conversely. Immediately after the power supply switch 2 is applied, the B side of the contact 9b of the relay is closed and the relay is selected to the contact A side when it is operated. Since the current flowing to the demagnetizing coil 8 flows to the positive characteristics thermistor 5b immediately after the application of the switch 2 and flows to the positive characteristics thermistor 5a immediately with selection, the attenuating current in time aging can flow.
COPYRIGHT: (C)1979,JPO&Japio
JP6013178A 1978-05-19 1978-05-19 Demagnetizer Pending JPS54151324A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6013178A JPS54151324A (en) 1978-05-19 1978-05-19 Demagnetizer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6013178A JPS54151324A (en) 1978-05-19 1978-05-19 Demagnetizer

Publications (1)

Publication Number Publication Date
JPS54151324A true JPS54151324A (en) 1979-11-28

Family

ID=13133265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP6013178A Pending JPS54151324A (en) 1978-05-19 1978-05-19 Demagnetizer

Country Status (1)

Country Link
JP (1) JPS54151324A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59195881U (en) * 1983-06-10 1984-12-26 三菱電機株式会社 Degaussing circuit
JPS6188387U (en) * 1984-11-13 1986-06-09
JPH0186788U (en) * 1987-11-30 1989-06-08

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59195881U (en) * 1983-06-10 1984-12-26 三菱電機株式会社 Degaussing circuit
JPS6188387U (en) * 1984-11-13 1986-06-09
JPH0186788U (en) * 1987-11-30 1989-06-08

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