JPS54105715A - Motor driving device - Google Patents

Motor driving device

Info

Publication number
JPS54105715A
JPS54105715A JP1230378A JP1230378A JPS54105715A JP S54105715 A JPS54105715 A JP S54105715A JP 1230378 A JP1230378 A JP 1230378A JP 1230378 A JP1230378 A JP 1230378A JP S54105715 A JPS54105715 A JP S54105715A
Authority
JP
Japan
Prior art keywords
signal
motor
capstan
shift
center
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.)
Pending
Application number
JP1230378A
Other languages
Japanese (ja)
Inventor
Kazutaka Ashida
Hiroyuki Umeda
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.)
Victor Company of Japan Ltd
Original Assignee
Victor Company of Japan 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 Victor Company of Japan Ltd filed Critical Victor Company of Japan Ltd
Priority to JP1230378A priority Critical patent/JPS54105715A/en
Publication of JPS54105715A publication Critical patent/JPS54105715A/en
Pending legal-status Critical Current

Links

Landscapes

  • Control Of Electric Motors In General (AREA)

Abstract

PURPOSE: To run the tape with constant speed irrespective of the shift of the center of capstan, by regulating the phase and the level of the signal corresponding with the rotary period of motor and adding to the drive signal of motor.
CONSTITUTION: The flywheel 4 associcated with the capstan 5 rotates integrally with the magnet 3 and the pulse from the head 6 is provided through a mono-stable multivibrator 7 having variable time constant to another mono-stable multivibrator 8 triggered by the falling of said signal, then added through the gain regulator 9 and lowpass filter 10 with the signal of motor drive circuit 11 to drive the motor 1. Consequently when regulating the time constant of mono-stable multivibrator 7 and providing a signal having the phase opposite with that of variation due to the shift of center of the capstan 5, the tape can be run with constant speed irrespective of said shift of center.
COPYRIGHT: (C)1979,JPO&Japio
JP1230378A 1978-02-08 1978-02-08 Motor driving device Pending JPS54105715A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1230378A JPS54105715A (en) 1978-02-08 1978-02-08 Motor driving device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1230378A JPS54105715A (en) 1978-02-08 1978-02-08 Motor driving device

Publications (1)

Publication Number Publication Date
JPS54105715A true JPS54105715A (en) 1979-08-20

Family

ID=11801546

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1230378A Pending JPS54105715A (en) 1978-02-08 1978-02-08 Motor driving device

Country Status (1)

Country Link
JP (1) JPS54105715A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01303085A (en) * 1988-05-27 1989-12-06 Tokyo Electric Co Ltd Rotation controlling circuit for scanner motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926365A (en) * 1972-07-04 1974-03-08

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926365A (en) * 1972-07-04 1974-03-08

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01303085A (en) * 1988-05-27 1989-12-06 Tokyo Electric Co Ltd Rotation controlling circuit for scanner motor

Similar Documents

Publication Publication Date Title
JPS535607A (en) Magnetic reproduction device
JPS5336208A (en) Magnetic reproducer
JPS54105715A (en) Motor driving device
FR2292981A1 (en) DEVICE FOR TRANSMITTING THE ROTATION OF A SHAFT TO A SECOND SHAFT
JPS5319814A (en) Control signal generating circuit
JPS52109909A (en) Magnetic recording and reproducing apparatus
JPS53146528A (en) Automatic tracking device
JPS5354728A (en) Motor speed controlling device
JPS5446016A (en) Magnetic recorder-reproducer
JPS5425414A (en) Commutatorless motor
JPS5740776A (en) Run controller for endless tape
JPS5694534A (en) Tape driving device
JPS5350806A (en) Power transmission device of tape recorder
JPS5320521A (en) Motor control device
JPS55106091A (en) Motor drive circuit
JPS51137177A (en) Air filter of automatic coil type
JPS5352404A (en) Pause device of tape recorder
JPS5442123A (en) Display device of tape recorders
JPS5671842A (en) Magnetic recording and playback device
JPS52104206A (en) Reel drive motor control circuit in tape recorder
JPS52101010A (en) Magnetic recorder
JPS53121609A (en) Magnetic recording and reproducing device
JPS5374407A (en) Tape recorder
JPS51143305A (en) Servo circuit
JPS6443841A (en) Method and device for controlling reel