JPS5778610A - Recording circuit for two-terminal magnetic head - Google Patents

Recording circuit for two-terminal magnetic head

Info

Publication number
JPS5778610A
JPS5778610A JP15180180A JP15180180A JPS5778610A JP S5778610 A JPS5778610 A JP S5778610A JP 15180180 A JP15180180 A JP 15180180A JP 15180180 A JP15180180 A JP 15180180A JP S5778610 A JPS5778610 A JP S5778610A
Authority
JP
Japan
Prior art keywords
kinds
controlled
magnetic head
signals
current
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
JP15180180A
Other languages
Japanese (ja)
Other versions
JPS6353606B2 (en
Inventor
Morishige Aoyama
Hideo Tanaka
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 JP15180180A priority Critical patent/JPS5778610A/en
Publication of JPS5778610A publication Critical patent/JPS5778610A/en
Publication of JPS6353606B2 publication Critical patent/JPS6353606B2/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)
  • Electronic Switches (AREA)

Abstract

PURPOSE:To decrease the number of component elements, and also to obtain the satisfactory transient characteristics of a recording current waveform, by fetching a signal for controlling 4 transistors (TR) of a recording amplifier connected to a magnetic head, from the collector of a TR of the prestage circuit. CONSTITUTION:2 kinds of opposed digital signals of an FF1 are supplied to the base of two TR1, TR2 constituting a singal level transducer 2', they are turned on and off, and the output of each collector is level-converted to 4 kinds of output signals by the potential defference between resistances R14-R17 .Also, by these kinds of output signals, TR5-TR8 constituting a recording amplifier 4 are controlled to on and off, and the direction of a current flowing to a two-terminal thin film magnetic head 5 is controlled. Furthermore, a current value setting switch group 9 connected to a constant-current source 8 and an overshooting circuit 10 are interlocked, the base potential of TR9 is controlled and a current flowing in the transducer 2' is controlled. In this way, the number of component elements is decreased, the interference between circuits is removed, also delay time characteristics of 4 kinds of signals are made uniform, and the transient characteristics are made satisfactory.
JP15180180A 1980-10-29 1980-10-29 Recording circuit for two-terminal magnetic head Granted JPS5778610A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15180180A JPS5778610A (en) 1980-10-29 1980-10-29 Recording circuit for two-terminal magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15180180A JPS5778610A (en) 1980-10-29 1980-10-29 Recording circuit for two-terminal magnetic head

Publications (2)

Publication Number Publication Date
JPS5778610A true JPS5778610A (en) 1982-05-17
JPS6353606B2 JPS6353606B2 (en) 1988-10-25

Family

ID=15526589

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15180180A Granted JPS5778610A (en) 1980-10-29 1980-10-29 Recording circuit for two-terminal magnetic head

Country Status (1)

Country Link
JP (1) JPS5778610A (en)

Also Published As

Publication number Publication date
JPS6353606B2 (en) 1988-10-25

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