JPS57143754A - Reel driving circuit - Google Patents

Reel driving circuit

Info

Publication number
JPS57143754A
JPS57143754A JP56030959A JP3095981A JPS57143754A JP S57143754 A JPS57143754 A JP S57143754A JP 56030959 A JP56030959 A JP 56030959A JP 3095981 A JP3095981 A JP 3095981A JP S57143754 A JPS57143754 A JP S57143754A
Authority
JP
Japan
Prior art keywords
fluctuation
motor
revolutions
voltage
collector
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
JP56030959A
Other languages
Japanese (ja)
Other versions
JPS6350776B2 (en
Inventor
Yasushi Nawata
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP56030959A priority Critical patent/JPS57143754A/en
Publication of JPS57143754A publication Critical patent/JPS57143754A/en
Publication of JPS6350776B2 publication Critical patent/JPS6350776B2/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
    • 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
    • G11B15/18—Driving; Starting; Stopping; Arrangements for control or regulation thereof
    • G11B15/46—Controlling, regulating, or indicating speed

Abstract

PURPOSE:To reduce the fluctuation of winding speed and to achieve stabilization against external disturbance, by providing a reel driving circuit which decreases the ratio of fluctuation of number of revolutions of a winding motor to the fluctuation of number of revolutions of a motor to be wound at a high speed. CONSTITUTION:A base emitter voltage of a transistor 12 (TR) and a forward voltage of a diode are denoted as 0.6 volt in this case. If the collector and the emitter of the TR12 are shortened and a counter electromotive force of a motor 2 is increased, the collector voltage of the TR12 is lowered and a voltage between the collector and the emitter is saturated. The ratio of the fluctuation of revolutions of a winding motor to the fluctuation of revolutions of a motor 2 to be driven is (580-500)/(500-380)=0.67. Thus, the ratio of fluctuations can be reduced to about 1/10, allowing to achieve stabilization against external disturbance.
JP56030959A 1981-03-02 1981-03-02 Reel driving circuit Granted JPS57143754A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56030959A JPS57143754A (en) 1981-03-02 1981-03-02 Reel driving circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56030959A JPS57143754A (en) 1981-03-02 1981-03-02 Reel driving circuit

Publications (2)

Publication Number Publication Date
JPS57143754A true JPS57143754A (en) 1982-09-06
JPS6350776B2 JPS6350776B2 (en) 1988-10-11

Family

ID=12318208

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56030959A Granted JPS57143754A (en) 1981-03-02 1981-03-02 Reel driving circuit

Country Status (1)

Country Link
JP (1) JPS57143754A (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131508U (en) * 1974-08-30 1976-03-08
JPS5175406A (en) * 1974-12-25 1976-06-30 Akai Electric Kasetsutoteepuno hayamakitorisochi

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5131508U (en) * 1974-08-30 1976-03-08
JPS5175406A (en) * 1974-12-25 1976-06-30 Akai Electric Kasetsutoteepuno hayamakitorisochi

Also Published As

Publication number Publication date
JPS6350776B2 (en) 1988-10-11

Similar Documents

Publication Publication Date Title
JPS5357415A (en) Solid commutator motor device
ES406977A1 (en) Plural motor tension controlled tape drive
JPS5383733A (en) Drive motor controller
JPS545408A (en) Magnetic recorder-reproducer
JPS52154383A (en) Semiconductor integrated circuit device
JPS53135309A (en) Reel controller
JPS57143753A (en) Reel driving circuit
SU372576A1 (en) TAPE MECHANISM ^^^^^ yyy- ^ y / ^ s -'.- ^ •• - •; , §И5Л | / 0-П ^ д ^ '"'!
JPS5350807A (en) Driving system of cassette tape recorder
JPS5480710A (en) Tape drive device
JPS52146587A (en) Driving system of thin film el display device
JPS52104206A (en) Reel drive motor control circuit in tape recorder
JPS51140070A (en) Controlling method of tension in rewinding machine
JPS524809A (en) Motor drive control system for automatic tape winding device
JPS5288311A (en) Tape driving device
JPS5221572A (en) Winder tension controller
JPS5294060A (en) Integrated injection logic circuit
JPS5613555A (en) Driving circuit for reel motor of tape recorder
JPS5446014A (en) Tape position retrieval system of tape driving device
GB1525714A (en) Constant voltage transformer drive
JPS51130829A (en) Highper tension power supply device
JPS5277705A (en) Tension controller for tapes
JPS52140308A (en) Control system for reel motor
FR2280259A1 (en) Electronic switching circuit for stepping motor - has power transistor and diode connected to transistor base
JPS5282312A (en) Tension control device for magnetic tapes