JPH0572646B2 - - Google Patents

Info

Publication number
JPH0572646B2
JPH0572646B2 JP58243888A JP24388883A JPH0572646B2 JP H0572646 B2 JPH0572646 B2 JP H0572646B2 JP 58243888 A JP58243888 A JP 58243888A JP 24388883 A JP24388883 A JP 24388883A JP H0572646 B2 JPH0572646 B2 JP H0572646B2
Authority
JP
Japan
Prior art keywords
transistor
magnetic head
circuit
disconnection
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.)
Expired - Lifetime
Application number
JP58243888A
Other languages
English (en)
Japanese (ja)
Other versions
JPS60136910A (ja
Inventor
Maki Yoshinaga
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 JP24388883A priority Critical patent/JPS60136910A/ja
Publication of JPS60136910A publication Critical patent/JPS60136910A/ja
Publication of JPH0572646B2 publication Critical patent/JPH0572646B2/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
    • G11B33/00—Constructional parts, details or accessories not provided for in the other groups of this subclass
    • G11B33/10—Indicating arrangements; Warning arrangements
    • 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
    • G11B5/455—Arrangements for functional testing of heads; Measuring arrangements for heads
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B19/00—Driving, starting, stopping record carriers not specifically of filamentary or web form, or of supports therefor; Control thereof; Control of operating function ; Driving both disc and head
    • G11B19/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B19/04—Arrangements for preventing, inhibiting, or warning against double recording on the same blank or against other recording or reproducing malfunctions

Landscapes

  • Digital Magnetic Recording (AREA)
JP24388883A 1983-12-26 1983-12-26 磁気ヘツドの断線異常検出回路 Granted JPS60136910A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24388883A JPS60136910A (ja) 1983-12-26 1983-12-26 磁気ヘツドの断線異常検出回路

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24388883A JPS60136910A (ja) 1983-12-26 1983-12-26 磁気ヘツドの断線異常検出回路

Publications (2)

Publication Number Publication Date
JPS60136910A JPS60136910A (ja) 1985-07-20
JPH0572646B2 true JPH0572646B2 (en]) 1993-10-12

Family

ID=17110479

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24388883A Granted JPS60136910A (ja) 1983-12-26 1983-12-26 磁気ヘツドの断線異常検出回路

Country Status (1)

Country Link
JP (1) JPS60136910A (en])

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3109889B2 (ja) * 1992-01-30 2000-11-20 株式会社日立製作所 磁気ヘッド用回路
JPH06274805A (ja) * 1993-03-19 1994-09-30 Hitachi Ltd リード／ライト集積回路
JP2003502788A (ja) * 1999-06-22 2003-01-21 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 書き込み駆動装置
US6952316B2 (en) 2002-11-08 2005-10-04 International Business Machines Corporation Open head detection circuit and method in a voltage or current mode driver

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57172516A (en) * 1981-04-16 1982-10-23 Fujitsu Ltd Detection system for fault of magnetic head

Also Published As

Publication number Publication date
JPS60136910A (ja) 1985-07-20

Similar Documents

Publication Publication Date Title
US6297921B1 (en) Write driver circuit having programmable overshoot and undershoot
US5457391A (en) Load short-circuit detection using AWH-bridge driving circuit and an exclusive-OR gate
US7190541B2 (en) Hi-speed preamplifier write driver for hard drive with improved symmetry
EP0055551A2 (en) Output buffer circuit
JPH0572646B2 (en])
US5193177A (en) Fault indicating microcomputer interface units
US5550501A (en) Current buffer circuit with enhanced response speed to input signal
JPH11134623A (ja) ヘッドショート検出回路
US5379208A (en) High speed driving circuit for magnetic head effective against flyback pulse
JP2814303B2 (ja) 磁気ヘッド異常検出回路
JP2579425B2 (ja) 論理回路のテスト装置
JPS6125055Y2 (en])
JP2004241043A (ja) 磁気ディスクメモリ装置と書き込み方法
JP2953805B2 (ja) データ保持ラッチ回路
JP2870014B2 (ja) Ｅｃｌ回路
JPH0775046B2 (ja) 磁気記憶装置の書込回路
JPH05325143A (ja) ヘッドオープン検出回路
JPH07121841A (ja) 磁気ヘッド断線検出回路
JP2672664B2 (ja) 記録再生切換回路
JPH11142462A (ja) オープン検出回路
JPH02203405A (ja) 磁気ヘッドドライブ装置
JPH08254563A (ja) 入力ピンのオープンエラー検出回路
JPH08160092A (ja) 半導体集積回路
JPS6336071B2 (en])
JPS61217906A (ja) 磁気記憶装置の書込回路