DE3546146C2 - - Google Patents

Info

Publication number
DE3546146C2
DE3546146C2 DE19853546146 DE3546146A DE3546146C2 DE 3546146 C2 DE3546146 C2 DE 3546146C2 DE 19853546146 DE19853546146 DE 19853546146 DE 3546146 A DE3546146 A DE 3546146A DE 3546146 C2 DE3546146 C2 DE 3546146C2
Authority
DE
Germany
Prior art keywords
transistor
current
transistors
magnetic head
coil
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
Application number
DE19853546146
Other languages
German (de)
English (en)
Other versions
DE3546146A1 (de
Inventor
Joichiro Saku Nagano Jp Ezaki
Katsuhiko Narashino Chiba Jp Tomita
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Publication of DE3546146A1 publication Critical patent/DE3546146A1/de
Application granted granted Critical
Publication of DE3546146C2 publication Critical patent/DE3546146C2/de
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
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B15/00—Driving, starting or stopping record carriers of filamentary or web form; Driving both such record carriers and heads; Guiding such record carriers or containers therefor; Control thereof; Control of operating function
    • G11B15/02—Control of operating function, e.g. switching from recording to reproducing
    • G11B15/12—Masking of heads; circuits for Selecting or switching of heads between operative and inoperative functions or between different operative functions or for selection between operative heads; Masking of beams, e.g. of light beams
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/66—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will
    • H03K17/661—Switching arrangements for passing the current in either direction at will; Switching arrangements for reversing the current at will connected to both load terminals
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K3/00—Circuits for generating electric pulses; Monostable, bistable or multistable circuits
    • H03K3/02—Generators characterised by the type of circuit or by the means used for producing pulses
    • H03K3/26—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback
    • H03K3/28—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback
    • H03K3/281—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator
    • H03K3/286—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable
    • H03K3/288—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable using additional transistors in the input circuit
    • H03K3/2885—Generators characterised by the type of circuit or by the means used for producing pulses by the use, as active elements, of bipolar transistors with internal or external positive feedback using means other than a transformer for feedback using at least two transistors so coupled that the input of one is derived from the output of another, e.g. multivibrator bistable using additional transistors in the input circuit the input circuit having a differential configuration

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Digital Magnetic Recording (AREA)
DE19853546146 1984-12-28 1985-12-27 Schaltkreis fuer einen duennfilm-magnetkopf Granted DE3546146A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP27931884A JPS61158010A (ja) 1984-12-28 1984-12-28 磁気ヘツド回路

Publications (2)

Publication Number Publication Date
DE3546146A1 DE3546146A1 (de) 1986-07-03
DE3546146C2 true DE3546146C2 (ja) 1988-09-01

Family

ID=17609497

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19853546146 Granted DE3546146A1 (de) 1984-12-28 1985-12-27 Schaltkreis fuer einen duennfilm-magnetkopf

Country Status (2)

Country Link
JP (1) JPS61158010A (ja)
DE (1) DE3546146A1 (ja)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02158903A (ja) * 1988-12-09 1990-06-19 Mitsubishi Electric Corp ヘッドドライバー

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3678292A (en) * 1970-08-06 1972-07-18 Rca Corp Multi-function logic gate circuits
US3763383A (en) * 1972-08-21 1973-10-02 Ibm Drive circuit for inductive device

Also Published As

Publication number Publication date
DE3546146A1 (de) 1986-07-03
JPS61158010A (ja) 1986-07-17

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Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8364 No opposition during term of opposition
8328 Change in the person/name/address of the agent

Free format text: VOGESER, W., DIPL.-ING., PAT.-ANW., 8000 MUENCHEN BOECKER, J., DIPL.-ING. DR.-ING., PAT.- U. RECHTSANW., 6000 FRANKFURT ALBER, N., DIPL.-ING. UNIV. DIPL.-WIRTSCH.-ING.UNIV STRYCH, W., DR.RER.NAT., PAT.-ANWAELTE, 8000 MUENCHEN

8339 Ceased/non-payment of the annual fee