JPS54119611A - Controller for dc motor - Google Patents

Controller for dc motor

Info

Publication number
JPS54119611A
JPS54119611A JP2543878A JP2543878A JPS54119611A JP S54119611 A JPS54119611 A JP S54119611A JP 2543878 A JP2543878 A JP 2543878A JP 2543878 A JP2543878 A JP 2543878A JP S54119611 A JPS54119611 A JP S54119611A
Authority
JP
Japan
Prior art keywords
motor
voltage
speed signal
feedbacked
shunt
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
JP2543878A
Other languages
Japanese (ja)
Inventor
Juichi Ninomiya
Taiji Tamuro
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2543878A priority Critical patent/JPS54119611A/en
Publication of JPS54119611A publication Critical patent/JPS54119611A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To simplify a control system for obtaining a constant output and stably drive a shunt-wound-field DC motor, by feedbacking the speed signal of the motor to produce a constant torque at the time of slow motion of the motor and control the field system of the motor when its rotational frequency is higher than a predetermined value.
CONSTITUTION: The speed signal VSF generated by a speed signal generator 7 directly coupled to the rotor 2 of the DC motor 1 having a shunt-wound field system 3 is feedbacked. A voltage command amplifier 6 for changing the voltage supplied to the motor and a means 4 for supplying a DC voltage to the rotor 2 are provided to compare the feedbacked speed signal with a speed command signal VS to reduce the difference between them. A difference amplifier 12 reduces a direct current applied to the shunt-wound field winding 3 depending on the difference and a voltage instructing amplifier 9 instructs the output voltage of a DC voltage supply means 8 when the feedbacked signal VSF has exceeded a predetermined value VF. Thus, the control system is simplified and the motor is stably driven.
COPYRIGHT: (C)1979,JPO&Japio
JP2543878A 1978-03-08 1978-03-08 Controller for dc motor Pending JPS54119611A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2543878A JPS54119611A (en) 1978-03-08 1978-03-08 Controller for dc motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2543878A JPS54119611A (en) 1978-03-08 1978-03-08 Controller for dc motor

Publications (1)

Publication Number Publication Date
JPS54119611A true JPS54119611A (en) 1979-09-17

Family

ID=12165988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2543878A Pending JPS54119611A (en) 1978-03-08 1978-03-08 Controller for dc motor

Country Status (1)

Country Link
JP (1) JPS54119611A (en)

Similar Documents

Publication Publication Date Title
CA2068591A1 (en) Variable speed hydromassage pump control
JPS57129198A (en) Controlling method and device for ac motor
EP0137248A3 (en) Method and circuit for dc motor field regulation with speed feedback
JPS54119611A (en) Controller for dc motor
JPS55150788A (en) Induction motor starting system by variable frequency power source
JPS5592589A (en) Controller for operation of induction motor
JPS5583402A (en) Mobile power supply car
FR2422281A1 (en) Variable ratio drive system for constant speed IC engine - uses three=phase generator with controlled shunt winding and squirrel-cage motor
SU726643A1 (en) Device for regulating induction motor r.p.m.
GB807065A (en) Improvements relating to controlling the speed of alternating current electric motors for driving gyroscopes
JPS5574377A (en) Modulator for pulse width modulation inverter
FR2431218A1 (en) DC motor control and rotation sensing circuit - uses dual polarity pulse width modulated fixed frequency supply with pulse width controlled from sawtooth generator via two comparators
JPS56150991A (en) Brushless direct current motor
JPS55160366A (en) Conveyance drive system for reproducing element of video disk reproducing device
JPS5783102A (en) Control system of dual mode vehicle
JPS56112892A (en) Controlling method for pole change type induction motor
JPS5442607A (en) D. c. motor
JPS55136894A (en) Method for controlling rotating speed in screw-tightening machine
JPS5395221A (en) Control circuit induction motor
GB1533502A (en) Battery/mains generator set for the production of interruption-free current
JPS5698385A (en) Constant output control device for thyristor motor
JPS57170100A (en) Load controlling system using synchronous phase modifier for use with shaft generating device
JPS56107711A (en) Controller for electric vehicle
JPS558222A (en) Dc motor drive controller
JPS5789112A (en) Direct current speed servomotor of pulse conduction system