GB1324378A – Interface apparatus between a control computer and a controlled load
– Google Patents
GB1324378A – Interface apparatus between a control computer and a controlled load
– Google Patents
Interface apparatus between a control computer and a controlled load
Info
Publication number
GB1324378A
GB1324378A
GB4652570A
GB4652570A
GB1324378A
GB 1324378 A
GB1324378 A
GB 1324378A
GB 4652570 A
GB4652570 A
GB 4652570A
GB 4652570 A
GB4652570 A
GB 4652570A
GB 1324378 A
GB1324378 A
GB 1324378A
Authority
GB
United Kingdom
Prior art keywords
control
computer
line
voltage
capacitor
Prior art date
1969-10-21
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
GB4652570A
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.)
CBS Corp
Original Assignee
Westinghouse Electric 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.)
1969-10-21
Filing date
1970-09-30
Publication date
1973-07-25
1970-09-30
Application filed by Westinghouse Electric Corp
filed
Critical
Westinghouse Electric Corp
1973-07-25
Publication of GB1324378A
publication
Critical
patent/GB1324378A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G05—CONTROLLING; REGULATING
G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
G05B15/00—Systems controlled by a computer
G05B15/02—Systems controlled by a computer electric
G—PHYSICS
G11—INFORMATION STORAGE
G11C—STATIC STORES
G11C27/00—Electric analogue stores, e.g. for storing instantaneous values
G—PHYSICS
G11—INFORMATION STORAGE
G11C—STATIC STORES
G11C27/00—Electric analogue stores, e.g. for storing instantaneous values
G11C27/02—Sample-and-hold arrangements
G11C27/024—Sample-and-hold arrangements using a capacitive memory element
G11C27/026—Sample-and-hold arrangements using a capacitive memory element associated with an amplifier
Abstract
1324378 Programmed control WESTING- HOUSE ELECTRIC CORP 30 Sept 1970 [21 Oct 1969] 46525/70 Heading G3N An interface circuit between a control computer and a controlled load comprises an integrator circuit which is convertible into a voltage following circuit whereby the load can be controlled from an alternative voltage. A process or machine tool control system which is responsive to time-shared signals on a line 32 includes an interface circuit comprising as shown, a MOSFET amplifier 42 cascaded with a DC operational amplifier 46. During the input of control pulses from the computer a gate control 60, responsive to a gating pulse on line 62, closes IGFET switches 36, 38 so that the amplifiers 42, 46 by a feedback capacitor 64, integrate the incoming pulses and memorize the integrated value when switches 36, 38 open. During manual or automatic control a signal on a terminal 66 or 68 closes switch 38 and changes over switches 50, 54 so that the amplifiers 42, 46 cease to operate as an integrator and become a voltage following circuit, the voltage on the capacitor 64, through the coupling resistor 48, varying with the signal on a line 58. On resumption of computer control switch 38 opens and the charge on capacitor 64 is maintained in readiness for the next time-shared computer pulse-train. A line 72 provides a voltage reference point for the computer 10.
GB4652570A
1969-10-21
1970-09-30
Interface apparatus between a control computer and a controlled load
Expired
GB1324378A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US86815569A
1969-10-21
1969-10-21
Publications (1)
Publication Number
Publication Date
GB1324378A
true
GB1324378A
(en)
1973-07-25
Family
ID=25351163
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB4652570A
Expired
GB1324378A
(en)
1969-10-21
1970-09-30
Interface apparatus between a control computer and a controlled load
Country Status (6)
Country
Link
US
(1)
US3668379A
(en)
BE
(1)
BE757805A
(en)
CA
(1)
CA963976A
(en)
DE
(1)
DE2051719A1
(en)
FR
(1)
FR2066264A5
(en)
GB
(1)
GB1324378A
(en)
Families Citing this family (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3919614A
(en)
*
1972-01-17
1975-11-11
Warner Swasey Co
Dual-cycle cam grinding machine with electrical pulse operated wheel feed
US3896871A
(en)
*
1973-01-23
1975-07-29
Powers Regulator Co
Computer controlled automated building system having a manual control mode
US4055787A
(en)
*
1975-07-28
1977-10-25
Giddings & Lewis, Inc.
Interruptable numerical contouring control system with return to path safeguards
US4296302A
(en)
*
1979-08-21
1981-10-20
Colt Industries Operating Corp
Adaptive control of gap voltage and power to control servo operation of an electrical discharge machining apparatus
US4458189A
(en)
*
1982-08-06
1984-07-03
Mts Systems Corporation
Control mode switching circuit
JPS5960506A
(en)
*
1982-09-29
1984-04-06
Fanuc Ltd
Numerical controlling system
US4609984A
(en)
*
1984-04-13
1986-09-02
Sperry Corporation
Automatic baler with manual override of microprocessor controlled functions
Family Cites Families (10)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2679022A
(en)
*
1951-11-13
1954-05-18
Leeds & Northrup Co
Transfer from manual to automatic control in automatic control systems
US2740082A
(en)
*
1952-09-11
1956-03-27
Sperry Gyroscope Co Ltd
Servo systems
US3068387A
(en)
*
1959-09-21
1962-12-11
Bailey Meter Co
Manual and automatic control servo-system
US3340408A
(en)
*
1963-02-28
1967-09-05
Honeywell Inc
Automatic and manual change over system for electronic controlling instruments
US3290562A
(en)
*
1963-12-10
1966-12-06
Gen Electric
Self-synchronized controller for “bumpless” transfer between manual and automatic modes
US3290563A
(en)
*
1964-07-31
1966-12-06
Gen Electric
Self-synchronizing controller with auxiliary load means for “bumpless” transfer between manual and automatic modes
US3422457A
(en)
*
1965-07-21
1969-01-14
Bailey Meter Co
Arrangement for bumpless transfer of a servo control system from automatic to manual and vice versa
US3490691A
(en)
*
1966-06-02
1970-01-20
Tokyo Shibaura Electric Co
Proportional and integral action controller for sampled data control system
US3386689A
(en)
*
1967-02-06
1968-06-04
Sperry Rand Corp
Aircraft autopilot with control wheel steering
US3493773A
(en)
*
1967-03-20
1970-02-03
Weston Instruments Inc
Process variability monitor system
0
BE
BE757805D
patent/BE757805A/en
unknown
1969
1969-10-21
US
US868155A
patent/US3668379A/en
not_active
Expired – Lifetime
1970
1970-09-30
GB
GB4652570A
patent/GB1324378A/en
not_active
Expired
1970-10-14
CA
CA095,519A
patent/CA963976A/en
not_active
Expired
1970-10-20
FR
FR7037859A
patent/FR2066264A5/fr
not_active
Expired
1970-10-21
DE
DE19702051719
patent/DE2051719A1/en
active
Pending
Also Published As
Publication number
Publication date
US3668379A
(en)
1972-06-06
DE2051719A1
(en)
1971-06-03
BE757805A
(en)
1971-04-21
CA963976A
(en)
1975-03-04
FR2066264A5
(en)
1971-08-06
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Legal Events
Date
Code
Title
Description
1973-12-05
PS
Patent sealed [section 19, patents act 1949]
1986-05-21
PCNP
Patent ceased through non-payment of renewal fee
