GB1060745A – Digital actuator
– Google Patents
GB1060745A – Digital actuator
– Google Patents
Digital actuator
Info
Publication number
GB1060745A
GB1060745A
GB20666/64A
GB2066664A
GB1060745A
GB 1060745 A
GB1060745 A
GB 1060745A
GB 20666/64 A
GB20666/64 A
GB 20666/64A
GB 2066664 A
GB2066664 A
GB 2066664A
GB 1060745 A
GB1060745 A
GB 1060745A
Authority
GB
United Kingdom
Prior art keywords
motor
signal
signals
logic circuitry
error signal
Prior art date
1963-05-16
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
GB20666/64A
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.)
CONOFLOW CORP
Original Assignee
CONOFLOW 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.)
1963-05-16
Filing date
1964-05-19
Publication date
1967-03-08
1964-05-19
Application filed by CONOFLOW CORP
filed
Critical
CONOFLOW CORP
1967-03-08
Publication of GB1060745A
publication
Critical
patent/GB1060745A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G05—CONTROLLING; REGULATING
G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
G05D3/00—Control of position or direction
G05D3/12—Control of position or direction using feedback
G05D3/14—Control of position or direction using feedback using an analogue comparing device
G05D3/18—Control of position or direction using feedback using an analogue comparing device delivering a series of pulses
G05D3/183—Control of position or direction using feedback using an analogue comparing device delivering a series of pulses using stepping motor
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
H02P8/00—Arrangements for controlling dynamo-electric motors of the kind having motors rotating step by step
H02P8/14—Arrangements for controlling speed or speed and torque
Abstract
1,060,745. Stepping-motors. CONOFLOW CORPORATION. May 19, 1964 [May 16, 1963], No. 20666/64. Heading G4H. A bidirectional stepping motor is controlled by logic circuitry which receives step-command signals and signals representing the current state of energization of the motor. The step-command signal may be a pulse on one of two lines (P, N) depending on the polarity of an error signal from comparing required and actual liquid flow rates, the motor controlling a valve. The current-state signals from the motor may come from taps (for voltage reduction) on resistor chains connected in parallel with the motor windings. The outputs of the logic circuitry are sampled with a strobe signal (G) derived from the error signal, and used to control flip-flops via monostable multivibrators. The flip-flops control motor winding energization, optionally through NPN transistors (Fig. 7, not shown) or silicon-controlled rectifiers (Fig. 8, not shown). The logic circuitry may utilize AND-gates, or tunnel diodes (which give an output for one or three inputs present but not for none or two). By altering change-over switches, the error signal may be replaced by a constant signal of selected polarity present as long as a manual control is kept actuated, and/or the strobe signals may be produced at a constant rate by an independent generator.
GB20666/64A
1963-05-16
1964-05-19
Digital actuator
Expired
GB1060745A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US280966A
US3304480A
(en)
1963-05-16
1963-05-16
Digital actuator including feedback representation of the stepper motor winding energization state
US80228169A
1969-01-28
1969-01-28
Publications (1)
Publication Number
Publication Date
GB1060745A
true
GB1060745A
(en)
1967-03-08
Family
ID=26960630
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB20666/64A
Expired
GB1060745A
(en)
1963-05-16
1964-05-19
Digital actuator
Country Status (2)
Country
Link
US
(2)
US3304480A
(en)
GB
(1)
GB1060745A
(en)
Families Citing this family (14)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3414785A
(en)
*
1963-09-12
1968-12-03
Itt
Control circuit for numerically positioned table
US3373327A
(en)
*
1964-09-22
1968-03-12
Army Usa
Control circuit for cryogenic motors
US3381193A
(en)
*
1964-10-26
1968-04-30
California Comp Products Inc
Incremental stepping motor apparatus and methods for driving
US3359474A
(en)
*
1964-11-27
1967-12-19
Itt
Stepper motor control and step detector
US3418547A
(en)
*
1965-03-22
1968-12-24
Gen Signal Corp
Step-servocontroller
US3414786A
(en)
*
1965-10-22
1968-12-03
Ibm
Stepping motor servo
US3412302A
(en)
*
1966-04-28
1968-11-19
Westinghouse Electric Corp
Reversible direct coupled drive circuit for stepping motors
US3581182A
(en)
*
1967-02-08
1971-05-25
United Aircraft Corp
Digital indicator step motor system
US3529223A
(en)
*
1967-10-04
1970-09-15
Texas Instruments Inc
Variable speed induction motor controller with rotor frequency sensing
US3508130A
(en)
*
1968-02-23
1970-04-21
Us Navy
Digital motor
US3532948A
(en)
*
1968-10-29
1970-10-06
Nasa
Stepping motor control circuit
US3991355A
(en)
*
1974-02-22
1976-11-09
Xerox Corporation
Stepper motor control
US4417312A
(en)
*
1981-06-08
1983-11-22
Worcester Controls Corporation
Electronic controller for valve actuators
US4727304A
(en)
*
1986-11-10
1988-02-23
Ibm Corporation
Phase sequencer for stepping motor
Family Cites Families (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3124732A
(en)
*
1964-03-10
Reversible step motor switching circuit
US3042819A
(en)
*
1959-09-30
1962-07-03
Endevco Corp
Differential counting system
US3117268A
(en)
*
1960-10-26
1964-01-07
Superior Electric Co
Electric motor control circuit
US3105927A
(en)
*
1960-11-25
1963-10-01
Orris H Flatten
Digital motor positioning servo
US3112433A
(en)
*
1962-01-31
1963-11-26
Space Technology Lab Inc
Multiphase electrical system
DE1240980B
(en)
*
1962-05-11
1967-05-24
Siemens Ag
High-speed DC-fed miniature motor with permanent magnetic rotor and electronic commutation device
US3219895A
(en)
*
1962-07-20
1965-11-23
Thomas J Price
Digital servo and incremental positioner
US3199009A
(en)
*
1962-12-12
1965-08-03
Bendix Corp
Stepper motor servo amplifier
1963
1963-05-16
US
US280966A
patent/US3304480A/en
not_active
Expired – Lifetime
1964
1964-05-19
GB
GB20666/64A
patent/GB1060745A/en
not_active
Expired
1969
1969-01-28
US
US26926D
patent/USRE26926E/en
not_active
Expired
Also Published As
Publication number
Publication date
US3304480A
(en)
1967-02-14
USRE26926E
(en)
1970-06-30
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