GB1084840A - Creation of Inventions and Patents with Artificial Intelligence

GB1084840A – Motor control servo system
– Google Patents

GB1084840A – Motor control servo system
– Google Patents
Motor control servo system

Info

Publication number
GB1084840A

GB1084840A
GB27547/65A
GB2754765A
GB1084840A
GB 1084840 A
GB1084840 A
GB 1084840A
GB 27547/65 A
GB27547/65 A
GB 27547/65A
GB 2754765 A
GB2754765 A
GB 2754765A
GB 1084840 A
GB1084840 A
GB 1084840A
Authority
GB
United Kingdom
Prior art keywords
motor
signal
amplifier
line
speed
Prior art date
1964-08-24
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
GB27547/65A
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.)

ConocoPhillips Co

Original Assignee
Continental Oil Co
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.)
1964-08-24
Filing date
1965-06-29
Publication date
1967-09-27

1965-06-29
Application filed by Continental Oil Co
filed
Critical
Continental Oil Co

1967-09-27
Publication of GB1084840A
publication
Critical
patent/GB1084840A/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

H02P23/00—Arrangements or methods for the control of AC motors characterised by a control method other than vector control

H02P23/18—Controlling the angular speed together with angular position or phase

H02P23/186—Controlling the angular speed together with angular position or phase of one shaft by controlling the prime mover

Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S388/00—Electricity: motor control systems

Y10S388/90—Specific system operational feature

Y10S388/903—Protective, e.g. voltage or current limit

Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC

Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

Y10S388/00—Electricity: motor control systems

Y10S388/907—Specific control circuit element or device

Y10S388/91—Operational/differential amplifier

Abstract

1, 084, 840. Automatic speed control. CONTINENTAL OIL CO. June 29, 1965 [Aug. 24, 1964], No. 27547/65. Heading G3R. A D. C. motor 20 driving magnetic tape drum 22 has its speed selected by switch 28, a photoelectric chopper 24 delivering a feedback signal whose frequency indicates the actual speed of the motor. A reference oscillator 150 is associated with multi-vibrator 154 providing outputs A, B, of opposite phase which are further divided to provide reference frequency outputs C, D, phasedisplaced by ninety degrees. The motor feedback frequency on line 90 has a fixed value when the motor is correctly following the set speed, no matter where the switch 28 is positioned. Changes of frequency of the signal on line 90 are indicated by variations in the spacing of square wave pulses derived from multi-vibrator 96, these pulses being filtered to afford a D. C. signal on line 92 representing the actual motor speed. A phase detector 102 compares the signals on lines 90, 107, to derive a D. C. signal on line 94 having an amplitude indicating the phase difference and a polarity indicating the direction of the phase-shift. The reference frequency signal on line 142 is fed to converter 36 providing a D. C. signal on line 148 proportional to the desired motor speed. The signals on lines 92, 94, 148, are applied to summation networks 166, 168, connected to differential amplifier 170, a further feedback signal being taken from the output of this amplifier and applied through capacitor 228 and one of the attenuation resistors 230-233 to the network 168. This further feedback signal consists of sampling A. C. variations in the output of amplifier 170 and is fed back to the input degeneratively. The velocity-reference and phase-feedback signals are summed in network 166 and the summed voltage is applied to one input of the differential amplifier; likewise, the velocity-feedback and amplifierfeedback signals are summed in network 168 and the resultant voltage is applied to a second input of the amplifier. The output of the amplifier 170 is a direct voltage which is amplified by power amplifier 40 to drive the motor 20. In the event of a sufficient overspeed condition, the control voltage on lead 238 becomes positive and the power amplifier is switched to provide a reverse braking voltage for the motor. A protective circuit 41 is responsive to the motor feedback frequency signal on lead 290 to open contacts 294 when the speed is double its normal value. The motor remains de-energized until a reset switch is opened.

GB27547/65A
1964-08-24
1965-06-29
Motor control servo system

Expired

GB1084840A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

US391410A

US3361949A
(en)

1964-08-24
1964-08-24
Motor control servo system

Publications (1)

Publication Number
Publication Date

GB1084840A
true

GB1084840A
(en)

1967-09-27

Family
ID=23546465
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB27547/65A
Expired

GB1084840A
(en)

1964-08-24
1965-06-29
Motor control servo system

Country Status (4)

Country
Link

US
(1)

US3361949A
(en)

DE
(1)

DE1463048B2
(en)

GB
(1)

GB1084840A
(en)

NL
(1)

NL6510764A
(en)

Families Citing this family (24)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US3689816A
(en)

1966-09-29
1972-09-05
Eresa Sa
Phase and speed control of a dc motor

US3569808A
(en)

1967-07-25
1971-03-09
Victor Company Of Japan
Servo system for magnetic recording and reproducing apparatus

US3582541A
(en)

1967-10-19
1971-06-01
Ampex
Coincidence servosystem

US3577056A
(en)

1968-03-13
1971-05-04
Sony Corp
Dc motor servosystem

GB1258486A
(en)

1968-10-12
1971-12-30

US3686432A
(en)

1969-10-07
1972-08-22
Matsushita Electric Ind Co Ltd
Running-speed control system for magnetic recording medium

US3628114A
(en)

1969-11-03
1971-12-14
Westinghouse Electric Corp
Sync acquisition system

GB1309326A
(en)

1970-09-07
1973-03-07
Instron Ltd
Constant speed drive

AT306173B
(en)

1971-07-08
1973-03-26
Philips Nv

Circuit arrangement for bringing a servo drive for a rotating system into phase

US4095425A
(en)

1977-03-03
1978-06-20
Continental Oil Company
Control system for rotary air modulator

US4149117A
(en)

1977-03-17
1979-04-10
Ampex Corporation
Circuit and method for servo speed control

GB2000614B
(en)

1977-06-30
1982-03-17
Oki Electric Ind Co Ltd
Motor control systems

JPS5433983A
(en)

1977-08-22
1979-03-13
Toshiba Corp
Digital servo device

JPS5456119A
(en)

1977-10-11
1979-05-04
Sony Corp
Speed controller for motor

JPS54102474A
(en)

1978-01-27
1979-08-11
Sony Corp
Digital servo circuit

US4193020A
(en)

1978-05-22
1980-03-11
Sperry Rand Corporation
Phase lock control system with trajectory correction

GB2024465B
(en)

1978-07-01
1983-05-05
Inoue Japax Res
Automatic control

US4284931A
(en)

1979-03-14
1981-08-18
Beckman Instruments, Inc.
Overspeed shutdown system for centrifuge apparatus

JPS55144788A
(en)

1979-04-27
1980-11-11
Hitachi Ltd
Automatic gain-control circuit for motor servo-system

US4613799A
(en)

1982-03-18
1986-09-23
Sanyo Electric Co., Ltd.
Motor velocity control circuit

US4608527A
(en)

1982-12-20
1986-08-26
Sundstrand Corporation
Phase advance waveform generator for brushless DC actuator system controller

JP2530493B2
(en)

1989-04-11
1996-09-04
マイコム株式会社

Axis control device

US6260668B1
(en)

1999-04-29
2001-07-17
Highland Machinery Corporation
Brake system for electrically powered vehicles

GB0621375D0
(en)

2006-10-27
2006-12-06
Domino Printing Sciences Plc
Improvements in or relating to marking and/or coding

Family Cites Families (3)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

US2715202A
(en)

1951-09-07
1955-08-09
Western Union Telegraph Co
Electric motor speed regulation

US3187092A
(en)

1959-04-27
1965-06-01
Rca Corp
Speed control system using parallel control loops

US3181046A
(en)

1962-07-02
1965-04-27
Ibm
Gated pulse amplifier servomechanism

1964

1964-08-24
US
US391410A
patent/US3361949A/en
not_active
Expired – Lifetime

1965

1965-06-29
GB
GB27547/65A
patent/GB1084840A/en
not_active
Expired

1965-08-04
DE
DE19651463048
patent/DE1463048B2/en
active
Pending

1965-08-17
NL
NL6510764A
patent/NL6510764A/xx
unknown

Also Published As

Publication number
Publication date

US3361949A
(en)

1968-01-02

NL6510764A
(en)

1966-02-25

DE1463048A1
(en)

1970-01-08

DE1463048B2
(en)

1971-06-09

Contact information