JPS54110414A - Drive circuit of motor - Google Patents

Drive circuit of motor

Info

Publication number
JPS54110414A
JPS54110414A JP1827378A JP1827378A JPS54110414A JP S54110414 A JPS54110414 A JP S54110414A JP 1827378 A JP1827378 A JP 1827378A JP 1827378 A JP1827378 A JP 1827378A JP S54110414 A JPS54110414 A JP S54110414A
Authority
JP
Japan
Prior art keywords
coil
interlinkage flux
flux density
potential
motor 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.)
Granted
Application number
JP1827378A
Other languages
Japanese (ja)
Other versions
JPS6111555B2 (en
Inventor
Mitsuo Uzuka
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.)
Sony Corp
Original Assignee
Sony 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 Sony Corp filed Critical Sony Corp
Priority to JP1827378A priority Critical patent/JPS54110414A/en
Publication of JPS54110414A publication Critical patent/JPS54110414A/en
Publication of JPS6111555B2 publication Critical patent/JPS6111555B2/ja
Granted legal-status Critical Current

Links

Landscapes

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

Abstract

PURPOSE: To obtain constant rotating torque by detecting the interlinkage flux density of DC motor coil and performing an inversion operation of the detected signal to let the current flow in the motor coil corresponding to the output signal thereof.
CONSTITUTION: Hall effect elements 2a ∼ 2c detect the leakage magnet flux of a rotor magnet to obtain sine wave detecting signals Ea ∼ Ec proportional to the interlinkage flux densities of the motor coil 16a to 16c via differential amplifiers 17a ∼ 17c. Said signal potentials are given to logarithmic converter circuit 26 and are input to a substractor circuit 28 together with a referential potential Vs converted to logarithm and then given to a logarithmic reverse converter 29 and potential- current conversion circuit 30. A rotating torque is obtained from a current i and the interlinkage flux density of recpective coil which is determined by speed adjustment potential Vs independent of thd interlinkage flux density of the coil.
COPYRIGHT: (C)1979,JPO&Japio
JP1827378A 1978-02-20 1978-02-20 Drive circuit of motor Granted JPS54110414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1827378A JPS54110414A (en) 1978-02-20 1978-02-20 Drive circuit of motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1827378A JPS54110414A (en) 1978-02-20 1978-02-20 Drive circuit of motor

Publications (2)

Publication Number Publication Date
JPS54110414A true JPS54110414A (en) 1979-08-29
JPS6111555B2 JPS6111555B2 (en) 1986-04-03

Family

ID=11967034

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1827378A Granted JPS54110414A (en) 1978-02-20 1978-02-20 Drive circuit of motor

Country Status (1)

Country Link
JP (1) JPS54110414A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496886A (en) * 1982-11-08 1985-01-29 Hewlett-Packard Company Three state driver for inductive loads
JPH02158479A (en) * 1988-12-09 1990-06-18 Yamaha Motor Co Ltd Fuel cap device for scooter type vehicle

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4496886A (en) * 1982-11-08 1985-01-29 Hewlett-Packard Company Three state driver for inductive loads
JPH02158479A (en) * 1988-12-09 1990-06-18 Yamaha Motor Co Ltd Fuel cap device for scooter type vehicle

Also Published As

Publication number Publication date
JPS6111555B2 (en) 1986-04-03

Similar Documents

Publication Publication Date Title
JPS5740384A (en) Driving device for commutatorless dc motor
JPS5771017A (en) Generator for position detection signal
JPS54110414A (en) Drive circuit of motor
KR850008584A (en) Control system
JPS57180382A (en) Speed controller for 3-phase brushless motor
JPS5439843A (en) Ac power source
JPS5495208A (en) Magnetic recorder-reproducer
JPS5529869A (en) Electrostatic recorder
JPS5543963A (en) Motor controller
JPS54129418A (en) Motor driving circuit
JPS5612568A (en) Body detecting device
SU1075166A2 (en) Asynchronous dc tachogenerator
JPS55152415A (en) Detector for angle of rotation
JPS5592593A (en) Control circuit for speed of alternating current motor
SU1001382A1 (en) Full-wave rectifier
JPS54113842A (en) Anti-time eddy current relay
JPS54122172A (en) Speed detector
JPS5545180A (en) Inside force canceler of record player
JPS57158567A (en) Frequency and voltage converting circuit
SU1180796A1 (en) Device for determining rotational speed of direct current electromotor
JPS5489657A (en) Rotating angle detector
SU1247694A1 (en) Device for measuring electromagnetic torque of motor
JPS54120844A (en) Leakage detector
SU1365322A1 (en) Follow-up power drive
JPS54132715A (en) Control device of induction motor