JPS5720905A - Recording amplifier for two-terminal thin-film magnetic head - Google Patents

Recording amplifier for two-terminal thin-film magnetic head

Info

Publication number
JPS5720905A
JPS5720905A JP9670580A JP9670580A JPS5720905A JP S5720905 A JPS5720905 A JP S5720905A JP 9670580 A JP9670580 A JP 9670580A JP 9670580 A JP9670580 A JP 9670580A JP S5720905 A JPS5720905 A JP S5720905A
Authority
JP
Japan
Prior art keywords
recording
overshoot
control circuit
level conversion
fet switches
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
JP9670580A
Other languages
Japanese (ja)
Other versions
JPS6363961B2 (en
Inventor
Hideo Tanaka
Takao Maruyama
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.)
NEC Corp
Original Assignee
NEC Corp
Nippon 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 NEC Corp, Nippon Electric Co Ltd filed Critical NEC Corp
Priority to JP9670580A priority Critical patent/JPS5720905A/en
Publication of JPS5720905A publication Critical patent/JPS5720905A/en
Publication of JPS6363961B2 publication Critical patent/JPS6363961B2/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
    • G11B5/02—Recording, reproducing, or erasing methods; Read, write or erase circuits therefor
    • G11B5/09—Digital recording

Landscapes

  • Digital Magnetic Recording (AREA)
  • Feedback Control In General (AREA)

Abstract

PURPOSE:To shorten a measurement time for recording and reproduction characteristics, and to reduce inspection cost greatly by providing an overshoot control circuit, which controls the amount of an overshoot to a small value, in front of the final stage of a recording and amplification part connected directly to a head. CONSTITUTION:An FF1 turned on and off with a clock signal 101, the 1st signal level conversion part 2 performing the level conversion of two digital signals 102 and 103 of the FF1, the 2nd signal level conversion part 3 turning on and off four transistors (TR) of a recording amplification part 4 according its output signals, and an overshoot control circuit part 6 controlling output signals 106-109 of the conversion part 3 and controlling the overshoot amount of a recording current are provided. In this control circuit part 6, combinations of series-connected resistances R and FET switches are wired to the bases of the TRs in parallel and one side is earthed; and the FET switches are operated coupling with a recording current setting switch 8, and the resistances R connected in parallel to those FET switches are selected.
JP9670580A 1980-07-15 1980-07-15 Recording amplifier for two-terminal thin-film magnetic head Granted JPS5720905A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9670580A JPS5720905A (en) 1980-07-15 1980-07-15 Recording amplifier for two-terminal thin-film magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9670580A JPS5720905A (en) 1980-07-15 1980-07-15 Recording amplifier for two-terminal thin-film magnetic head

Publications (2)

Publication Number Publication Date
JPS5720905A true JPS5720905A (en) 1982-02-03
JPS6363961B2 JPS6363961B2 (en) 1988-12-09

Family

ID=14172166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9670580A Granted JPS5720905A (en) 1980-07-15 1980-07-15 Recording amplifier for two-terminal thin-film magnetic head

Country Status (1)

Country Link
JP (1) JPS5720905A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02306401A (en) * 1989-05-19 1990-12-19 Fujitsu Ltd Recording circuit for 2-terminal thin film magnetic head
JPH0944807A (en) * 1995-07-27 1997-02-14 Nec Corp Magnetic recording device and method therefor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02306401A (en) * 1989-05-19 1990-12-19 Fujitsu Ltd Recording circuit for 2-terminal thin film magnetic head
JPH0944807A (en) * 1995-07-27 1997-02-14 Nec Corp Magnetic recording device and method therefor

Also Published As

Publication number Publication date
JPS6363961B2 (en) 1988-12-09

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