JPS52137309A - Head runaway detection circuit - Google Patents

Head runaway detection circuit

Info

Publication number
JPS52137309A
JPS52137309A JP5326676A JP5326676A JPS52137309A JP S52137309 A JPS52137309 A JP S52137309A JP 5326676 A JP5326676 A JP 5326676A JP 5326676 A JP5326676 A JP 5326676A JP S52137309 A JPS52137309 A JP S52137309A
Authority
JP
Japan
Prior art keywords
head
detection circuit
runaway detection
runaway
voltage
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
JP5326676A
Other languages
Japanese (ja)
Inventor
Shinichi Kawada
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP5326676A priority Critical patent/JPS52137309A/en
Publication of JPS52137309A publication Critical patent/JPS52137309A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B21/00—Head arrangements not specific to the method of recording or reproducing
    • G11B21/02—Driving or moving of heads

Landscapes

  • Moving Of Head For Track Selection And Changing (AREA)

Abstract

PURPOSE:To prevent the runaway of a head by generating a signal when the both terminals voltage of resistance connected in series with the driving coil of head positioning mechanism exceeds fixed voltage.
JP5326676A 1976-05-12 1976-05-12 Head runaway detection circuit Pending JPS52137309A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5326676A JPS52137309A (en) 1976-05-12 1976-05-12 Head runaway detection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5326676A JPS52137309A (en) 1976-05-12 1976-05-12 Head runaway detection circuit

Publications (1)

Publication Number Publication Date
JPS52137309A true JPS52137309A (en) 1977-11-16

Family

ID=12937951

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5326676A Pending JPS52137309A (en) 1976-05-12 1976-05-12 Head runaway detection circuit

Country Status (1)

Country Link
JP (1) JPS52137309A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960764A (en) * 1982-09-29 1984-04-06 Toshiba Corp Head positioning device
JPS60182567A (en) * 1984-02-29 1985-09-18 Mitsubishi Electric Corp Linear motor control circuit
JPS62295280A (en) * 1986-06-16 1987-12-22 Canon Inc Information recording and reproducing device
JPH01500383A (en) * 1987-03-03 1989-02-09 ユニシス・コーポレーシヨン Preventing destruction of disk drive positioning systems
JPH0778429A (en) * 1993-09-10 1995-03-20 Nec Corp Magnetic head positioning device

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5960764A (en) * 1982-09-29 1984-04-06 Toshiba Corp Head positioning device
JPH0440793B2 (en) * 1982-09-29 1992-07-06 Tokyo Shibaura Electric Co
JPS60182567A (en) * 1984-02-29 1985-09-18 Mitsubishi Electric Corp Linear motor control circuit
JPH0243274B2 (en) * 1984-02-29 1990-09-27
JPS62295280A (en) * 1986-06-16 1987-12-22 Canon Inc Information recording and reproducing device
JPH01500383A (en) * 1987-03-03 1989-02-09 ユニシス・コーポレーシヨン Preventing destruction of disk drive positioning systems
JPH0778429A (en) * 1993-09-10 1995-03-20 Nec Corp Magnetic head positioning device

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