JPS55132513A - Magnetic disc unit - Google Patents

Magnetic disc unit

Info

Publication number
JPS55132513A
JPS55132513A JP4009179A JP4009179A JPS55132513A JP S55132513 A JPS55132513 A JP S55132513A JP 4009179 A JP4009179 A JP 4009179A JP 4009179 A JP4009179 A JP 4009179A JP S55132513 A JPS55132513 A JP S55132513A
Authority
JP
Japan
Prior art keywords
power supply
magnetic head
magnetic disc
linear motor
disc unit
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
JP4009179A
Other languages
Japanese (ja)
Other versions
JPH0115953B2 (en
Inventor
Hiroshi Baba
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP4009179A priority Critical patent/JPS55132513A/en
Publication of JPS55132513A publication Critical patent/JPS55132513A/en
Publication of JPH0115953B2 publication Critical patent/JPH0115953B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
    • G11B5/54—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head into or out of its operative position or across tracks

Landscapes

  • Recording Or Reproducing By Magnetic Means (AREA)

Abstract

PURPOSE:To quicken the recovery after emergency shunt and to avoid useless power consumption, by providing the output current limit type constant voltage power supply as the emergency shunt power supply for magnetic head, in the magnetic disc unit of linear motor drive system such as electronic computers. CONSTITUTION:The magnetic disc unit with floating magnetic head consists of the magnetic disc 1, magnetic head 7 provided on the carriage 8, linear motor 11, linear motor drive control circuit 15, emergency shunt power supply 16, and selection relay K1 for failure selection. When a failure is taken place, the relay 17 is slected, negative voltage is fed to the coil 14 from the emergence power supply 16, the carriage 8 is drawn backward, and the magnetic head 7 is shunted. In such case, first, the energy in the capacitor C3 of emergence power supply is output and constant current determined with the transistor D1, and resistors R4, R5 is output after that. Thus, useless power consumption is avoided and the recovery of power supply is faster.
JP4009179A 1979-04-03 1979-04-03 Magnetic disc unit Granted JPS55132513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4009179A JPS55132513A (en) 1979-04-03 1979-04-03 Magnetic disc unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4009179A JPS55132513A (en) 1979-04-03 1979-04-03 Magnetic disc unit

Publications (2)

Publication Number Publication Date
JPS55132513A true JPS55132513A (en) 1980-10-15
JPH0115953B2 JPH0115953B2 (en) 1989-03-22

Family

ID=12571209

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4009179A Granted JPS55132513A (en) 1979-04-03 1979-04-03 Magnetic disc unit

Country Status (1)

Country Link
JP (1) JPS55132513A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106576U (en) * 1980-01-16 1981-08-19

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102581043B1 (en) 2021-01-25 2023-09-22 한국과학기술연구원 Mesh type atomizer using porous thin film and method for manufacturing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5335509A (en) * 1976-09-13 1978-04-03 Mitsubishi Electric Corp Magnetic disk driver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5335509A (en) * 1976-09-13 1978-04-03 Mitsubishi Electric Corp Magnetic disk driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56106576U (en) * 1980-01-16 1981-08-19

Also Published As

Publication number Publication date
JPH0115953B2 (en) 1989-03-22

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