JPS5610093A - Driving device for reel - Google Patents

Driving device for reel

Info

Publication number
JPS5610093A
JPS5610093A JP8301779A JP8301779A JPS5610093A JP S5610093 A JPS5610093 A JP S5610093A JP 8301779 A JP8301779 A JP 8301779A JP 8301779 A JP8301779 A JP 8301779A JP S5610093 A JPS5610093 A JP S5610093A
Authority
JP
Japan
Prior art keywords
time
voltage
during
supplied
output 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.)
Granted
Application number
JP8301779A
Other languages
Japanese (ja)
Other versions
JPS648554B2 (en
Inventor
Makoto Goto
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial 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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP8301779A priority Critical patent/JPS5610093A/en
Publication of JPS5610093A publication Critical patent/JPS5610093A/en
Publication of JPS648554B2 publication Critical patent/JPS648554B2/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
    • G11B15/44—Speed-changing arrangements; Reversing arrangements; Drive transfer means therefor

Landscapes

  • Control Of Motors That Do Not Use Commutators (AREA)

Abstract

PURPOSE:To improve the electric power efficiency at the time of play by using a switching-type voltage converter capable of taking out DC current of variable output and reducing supplied voltage at the time of play through comparison with voltage supplied to the electric motor when rapid wind-up is effected. CONSTITUTION:A switching controller 12 controls a transistor 15's ''on'' time duty according to the command signal 9 and output voltage of a voltage converter 11. During ''on'' period, electric current is supplied to the electric motor 14 through an inductor 17 and a capacitor 18. While during ''off'' period, electric current is supplied to the electric motor 14 by an inductor 17's energy through a flywheel diode 16. Consequently, the output voltage of the voltage converter 11 varies proportional to the transistor 15's duty during ''on'' period, becoming a value corresponding to the command signal 9. Therefore, even if the output voltage during play time were minimized as compared to the output voltage at the time of rapid wind-up, power loss during play time can be minimized.
JP8301779A 1979-06-29 1979-06-29 Driving device for reel Granted JPS5610093A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8301779A JPS5610093A (en) 1979-06-29 1979-06-29 Driving device for reel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8301779A JPS5610093A (en) 1979-06-29 1979-06-29 Driving device for reel

Publications (2)

Publication Number Publication Date
JPS5610093A true JPS5610093A (en) 1981-02-02
JPS648554B2 JPS648554B2 (en) 1989-02-14

Family

ID=13790466

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8301779A Granted JPS5610093A (en) 1979-06-29 1979-06-29 Driving device for reel

Country Status (1)

Country Link
JP (1) JPS5610093A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149783A (en) * 1983-02-09 1984-08-27 Toshiba Corp Drive device for motor
JPS6055885A (en) * 1983-09-06 1985-04-01 Matsushita Electric Ind Co Ltd Magnetic recorder/reproducer
JPS6055886A (en) * 1983-09-06 1985-04-01 Matsushita Electric Ind Co Ltd Magnetic recorder/reproducer
JPH0538453A (en) * 1991-08-02 1993-02-19 Seiichi Watanabe Catalyst for purifying exhaust gas from diesel engine

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04362336A (en) * 1991-06-07 1992-12-15 Kubota Corp Vibration reducing device for engine

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848941A (en) * 1971-10-25 1973-07-11
JPS4932624A (en) * 1972-07-21 1974-03-25
JPS526919A (en) * 1975-07-07 1977-01-19 Hitachi Ltd Brushless motor
JPS55120387A (en) * 1979-03-06 1980-09-16 Matsushita Electric Ind Co Ltd Motor

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4848941A (en) * 1971-10-25 1973-07-11
JPS4932624A (en) * 1972-07-21 1974-03-25
JPS526919A (en) * 1975-07-07 1977-01-19 Hitachi Ltd Brushless motor
JPS55120387A (en) * 1979-03-06 1980-09-16 Matsushita Electric Ind Co Ltd Motor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59149783A (en) * 1983-02-09 1984-08-27 Toshiba Corp Drive device for motor
JPS6055885A (en) * 1983-09-06 1985-04-01 Matsushita Electric Ind Co Ltd Magnetic recorder/reproducer
JPS6055886A (en) * 1983-09-06 1985-04-01 Matsushita Electric Ind Co Ltd Magnetic recorder/reproducer
JPH0538453A (en) * 1991-08-02 1993-02-19 Seiichi Watanabe Catalyst for purifying exhaust gas from diesel engine

Also Published As

Publication number Publication date
JPS648554B2 (en) 1989-02-14

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