GB1426231A - Motor speed control system - Google Patents

Motor speed control system

Info

Publication number
GB1426231A
GB1426231A GB2528173A GB2528173A GB1426231A GB 1426231 A GB1426231 A GB 1426231A GB 2528173 A GB2528173 A GB 2528173A GB 2528173 A GB2528173 A GB 2528173A GB 1426231 A GB1426231 A GB 1426231A
Authority
GB
United Kingdom
Prior art keywords
speed
motor
error signal
differential amplifier
controlled
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.)
Expired
Application number
GB2528173A
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Publication of GB1426231A publication Critical patent/GB1426231A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
    • H02P7/00—Arrangements for regulating or controlling the speed or torque of electric DC motors
    • H02P7/06—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current
    • H02P7/18—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power
    • H02P7/24—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices
    • H02P7/28—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices
    • H02P7/285—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only
    • H02P7/29—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation
    • H02P7/291—Arrangements for regulating or controlling the speed or torque of electric DC motors for regulating or controlling an individual dc dynamo-electric motor by varying field or armature current by master control with auxiliary power using discharge tubes or semiconductor devices using semiconductor devices controlling armature supply only using pulse modulation with on-off control between two set points, e.g. controlling by hysteresis

Abstract

1426231 Automatic control of speed CANON KK 25 May 1973 [25 May 1972] 25281/73 Heading G3R The speed of a D.C. motor 1 is controlled by varying the duration of pulses produced in response to a speed error signal derived from a comparison made in differential amplifier 7 of the voltage generated by tacho-generator 2 and a temperature compensated reference voltage at point F. A switchable potential divider chain 10 allows the controlled speed of the motor to be changed. The error signal produced at the collector of transistor 45 in differential amplifier 7 is applied to the base of a further differential amplifier 5 so that the saw-tooth waveform generated by unijunction transistor oscillator 6 can be sampled to produce constant amplitude pulses whose width is proportional to the error signal. In alternative constructions a triangular or sine wave oscillator can be used. The motor is used to drive the film in a cine camera.
GB2528173A 1972-05-25 1973-05-25 Motor speed control system Expired GB1426231A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5205072A JPS5320083B2 (en) 1972-05-25 1972-05-25

Publications (1)

Publication Number Publication Date
GB1426231A true GB1426231A (en) 1976-02-25

Family

ID=12903972

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2528173A Expired GB1426231A (en) 1972-05-25 1973-05-25 Motor speed control system

Country Status (4)

Country Link
JP (1) JPS5320083B2 (en)
FR (1) FR2185889B1 (en)
GB (1) GB1426231A (en)
NL (1) NL7307135A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9093573B2 (en) 2013-09-09 2015-07-28 Semiconductor Components Industries, Llc Image sensor including temperature sensor and electronic shutter function
US9574951B2 (en) 2013-09-09 2017-02-21 Semiconductor Components Industries, Llc Image sensor including temperature sensor and electronic shutter function

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5673193U (en) * 1979-11-07 1981-06-16
JPS5716590A (en) * 1980-06-30 1982-01-28 Matsushita Electric Ind Co Ltd Motor driving circuit for controlling device of rotary body
JPS645237Y2 (en) * 1981-01-07 1989-02-09
FR2499782A1 (en) * 1981-02-11 1982-08-13 Faiveley Sa METHOD FOR ADJUSTING THE POWER SUPPLY OF A DC MOTOR AND DEVICE FOR IMPLEMENTING SAID METHOD
JPS5837796U (en) * 1981-09-04 1983-03-11 キヤノン株式会社 Control circuit for small DC motor
JPS599624A (en) * 1982-07-08 1984-01-19 Canon Inc Picture recording device

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1021025B (en) * 1954-08-03 1957-12-19 Siemens Ag Device for generating square pulses with changeable duty cycle
US3108212A (en) * 1960-02-29 1963-10-22 Singer Inc H R B Duty-factor controlled motor
BE696125A (en) * 1967-03-24 1967-09-24
US3559008A (en) * 1967-06-09 1971-01-26 Siemens Ag Voltage proportional speed control of the output of a differential gear connected to two motors utilizing a pulse width modulator control

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9093573B2 (en) 2013-09-09 2015-07-28 Semiconductor Components Industries, Llc Image sensor including temperature sensor and electronic shutter function
US9574951B2 (en) 2013-09-09 2017-02-21 Semiconductor Components Industries, Llc Image sensor including temperature sensor and electronic shutter function
US9835504B2 (en) 2013-09-09 2017-12-05 Semiconductor Components Industries, Llc Image sensor including temperature sensor and electronic shutter function

Also Published As

Publication number Publication date
DE2326796A1 (en) 1973-12-13
JPS498709A (en) 1974-01-25
DE2326796B2 (en) 1977-05-05
NL7307135A (en) 1973-11-27
FR2185889A1 (en) 1974-01-04
FR2185889B1 (en) 1977-12-30
JPS5320083B2 (en) 1978-06-24

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19930524