GB1175096A – Improvements in or relating to an Electronic Speed Regulator for Electric Motors
– Google Patents
GB1175096A – Improvements in or relating to an Electronic Speed Regulator for Electric Motors
– Google Patents
Improvements in or relating to an Electronic Speed Regulator for Electric Motors
Info
Publication number
GB1175096A
GB1175096A
GB02532/67A
GB1253267A
GB1175096A
GB 1175096 A
GB1175096 A
GB 1175096A
GB 02532/67 A
GB02532/67 A
GB 02532/67A
GB 1253267 A
GB1253267 A
GB 1253267A
GB 1175096 A
GB1175096 A
GB 1175096A
Authority
GB
United Kingdom
Prior art keywords
pulses
vibrator
transistor
motor
conduction
Prior art date
1966-04-04
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
GB02532/67A
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.)
Paillard SA
Original Assignee
Paillard SA
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.)
1966-04-04
Filing date
1967-03-17
Publication date
1969-12-23
1967-03-17
Application filed by Paillard SA
filed
Critical
Paillard SA
1969-12-23
Publication of GB1175096A
publication
Critical
patent/GB1175096A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
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
1,175,096. Automatic control of speed. PAILLARD S.A. March 17, 1967 [April 4, 1966], No. 12532/67. Heading G3R. [Also in Division H3] The speed of a motor M is controlled by regulating the on/off periods of an electronic switch (a transistor 1) in response to the amplified difference in duration of pulses generated by a motor driven device e and that of reference pulses. As shown, the reference pulses are generated by a monostable multi-vibrator 8, 9 triggered by the output 6 of a Schmitt trigger 4, 5 which squares the pulses from generator e. The output 6 is also applied to the base of a transistor 12, the emitter of which is connected at 11 to the multivibrator so that 12 conducts only when a pulse is present at 6 and absent at 11, i.e. for a time equal to the difference in duration of the respective pulses. This difference is amplified by the circuit comprising capacitor 17; this is charged during the conduction of 12 (and 15, 16) and discharged through 19 for the remainder of the time, and a transistor 21 is conductive whenever the charge is above a low level. 21 is connected to amplifier stages 22, 23, 24 to directly control the conduction of transistor 1. Desired speed is adjusted by varying the time constant of the multi-vibrator 8, 9. Circuit 27, 29, 30 ensures conduction of 1 at starting, when pulses from e are absent. A further monostable multi-vibrator 33, 34 positively switches the first back to its stable state at the end of each pulse from the Schmitt trigger to prevent the motor being controlled at a multiple of the desired speed. The motor may drive a cine camera, and it is stated that the action of the multi-vibrator 8, 9 could be controlled by a separate signal source, e.g. to synchronize sound and vision.
GB02532/67A
1966-04-04
1967-03-17
Improvements in or relating to an Electronic Speed Regulator for Electric Motors
Expired
GB1175096A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
CH494966A
CH434431A
(en)
1966-04-04
1966-04-04
Electronic speed regulator of an electric motor
Publications (1)
Publication Number
Publication Date
GB1175096A
true
GB1175096A
(en)
1969-12-23
Family
ID=4285325
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB02532/67A
Expired
GB1175096A
(en)
1966-04-04
1967-03-17
Improvements in or relating to an Electronic Speed Regulator for Electric Motors
Country Status (7)
Country
Link
US
(1)
US3506901A
(en)
AT
(1)
AT270811B
(en)
CH
(1)
CH434431A
(en)
DE
(1)
DE1588620A1
(en)
FR
(1)
FR1514756A
(en)
GB
(1)
GB1175096A
(en)
SE
(1)
SE350377B
(en)
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2146861A
(en)
*
1983-09-14
1985-04-24
Plessey Co Plc
Digital frequency discriminator
Families Citing this family (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3634745A
(en)
*
1970-05-27
1972-01-11
Ibm
Digital velocity servo for dc servomotor
US4105935A
(en)
*
1975-10-22
1978-08-08
Matsushita Electric Industrial Co., Ltd.
Motor speed control apparatus
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE1077307B
(en)
*
1958-05-08
1960-03-10
Siemens Ag
Device for monitoring or regulating the speed of electric motors
US3152267A
(en)
*
1961-11-13
1964-10-06
Ibm
Proportional pulse expander
US3241023A
(en)
*
1962-03-16
1966-03-15
Fifth Dimension Inc
Motor speed control
US3257595A
(en)
*
1963-06-10
1966-06-21
Globe Ind Inc
Pulse width modulator for speed control system
GB1097302A
(en)
*
1963-06-25
1968-01-03
Rank Precision Ind Ltd
Improvements in or relating to apparatus for investigating surface texture
US3340951A
(en)
*
1964-04-24
1967-09-12
Gen Electric
Speed control system
1966
1966-04-04
CH
CH494966A
patent/CH434431A/en
unknown
1966-05-18
AT
AT474066A
patent/AT270811B/en
active
1967
1967-03-16
FR
FR99114A
patent/FR1514756A/en
not_active
Expired
1967-03-16
US
US623644A
patent/US3506901A/en
not_active
Expired – Lifetime
1967-03-17
GB
GB02532/67A
patent/GB1175096A/en
not_active
Expired
1967-03-17
DE
DE19671588620
patent/DE1588620A1/en
active
Pending
1967-04-03
SE
SE04560/67A
patent/SE350377B/xx
unknown
Cited By (1)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2146861A
(en)
*
1983-09-14
1985-04-24
Plessey Co Plc
Digital frequency discriminator
Also Published As
Publication number
Publication date
FR1514756A
(en)
1968-02-23
US3506901A
(en)
1970-04-14
DE1588620A1
(en)
1970-09-17
SE350377B
(en)
1972-10-23
AT270811B
(en)
1969-05-12
CH434431A
(en)
1967-04-30
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Null oran
Legal Events
Date
Code
Title
Description
1970-05-06
PS
Patent sealed [section 19, patents act 1949]
1972-10-11
PLNP
Patent lapsed through nonpayment of renewal fees
