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EP0493003A3 - Voltage regulator, power supply and calibrator - Google Patents

Voltage regulator, power supply and calibrator Download PDF

Info

Publication number
EP0493003A3
EP0493003A3 EP19910311836 EP91311836A EP0493003A3 EP 0493003 A3 EP0493003 A3 EP 0493003A3 EP 19910311836 EP19910311836 EP 19910311836 EP 91311836 A EP91311836 A EP 91311836A EP 0493003 A3 EP0493003 A3 EP 0493003A3
Authority
EP
European Patent Office
Prior art keywords
input
personal computer
calibrated
value
voltage regulator
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.)
Granted
Application number
EP19910311836
Other versions
EP0493003A2 (en
EP0493003B1 (en
Inventor
Marlan Lee Winter
Mark Edmund Innes
Gary Francs Saletta
Edward Clarke Prather
Joseph Charles Engel
Rick Alan Hurley
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.)
Eaton 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.)
Filing date
Publication date
Priority claimed from US07/781,480 external-priority patent/US5815364A/en
Application filed by Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of EP0493003A2 publication Critical patent/EP0493003A2/en
Publication of EP0493003A3 publication Critical patent/EP0493003A3/en
Application granted granted Critical
Publication of EP0493003B1 publication Critical patent/EP0493003B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
    • H01H47/32—Energising current supplied by semiconductor device
    • H01H47/325—Energising current supplied by semiconductor device by switching regulator

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details Of Television Scanning (AREA)
  • Control Of Eletrric Generators (AREA)
  • Relay Circuits (AREA)
  • Control Of Voltage And Current In General (AREA)
  • Electronic Switches (AREA)
  • Control Of Electrical Variables (AREA)
  • Steering Control In Accordance With Driving Conditions (AREA)
  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

A control circuit for electrical contactors, starters and the like which include one or more pairs of separable main contacts is controlled by an electromagnet assembly 10. In order to reduce, if not eliminate, audible noise generated by the electromagnet assembly, the electrical current to the electromagnetic assembly is regulated to minimize the rate of change of magnetic flux therethrough to thereby reduce, if not eliminate, audible noise. The circuitry is also adapted to compensate for alternating current (AC) magnetic coupling from the main poles in order to provide a relatively larger hold in force when the contacts are to remain in a closed position. Apparatus for calibrating an electrical device is taught. A precision power supply device PCS is interconnected by way of appropriate input channels to the device 10 to be calibrated for supplying a precise accurate calibration variable as an input. A personal computer PC is interlinked by way of a communications network CONI with the apparatus 10 to be calibrated and is also interlinked with the precision supply device so that the personal computer PC has available the exact value of input variable utilized. Upon command, the personal computer PC instructs the device being calibrated to deliver to the personal computer PC those values of input variable which the device being calibrated interprets as the input variable value. The personal computer PC compares this value with the actual value and generates a correction factor which the personal computer PC sends back to the device being calibrated for storage in an EEPROM. A power supply 202 which includes a rectifier input circuit MCR1 which provides either half wave or full wave rectified electrical current at an instantaneous voltage value to the input terminal of a controlled switch MQ3 is taught. The controlled switch is controlled by the combination of a "low voltage reset" device MU6 and a field effects transistor MQ2 combined to form a voltage sensing and switching circuit SSM which is interconnected at its input between the input terminal of the voltage regulator and ground and at its output or reset terminal to the control terminal of the voltage regulator. The output terminal of the voltage regulator is connected to the anode of a diode MCR7, the cathode of which is connected to one side of a storage capacitor MC6.
EP91311836A 1990-12-28 1991-12-20 Voltage regulator, power supply and calibrator Expired - Lifetime EP0493003B1 (en)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US636000 1984-07-30
US63600090A 1990-12-28 1990-12-28
US63572090A 1990-12-28 1990-12-28
US635720 1990-12-28
US07/781,480 US5815364A (en) 1991-10-18 1991-10-18 Ultrasonic coil current regulator
US781480 1991-10-18

Publications (3)

Publication Number Publication Date
EP0493003A2 EP0493003A2 (en) 1992-07-01
EP0493003A3 true EP0493003A3 (en) 1992-10-14
EP0493003B1 EP0493003B1 (en) 1997-11-05

Family

ID=27417574

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91311836A Expired - Lifetime EP0493003B1 (en) 1990-12-28 1991-12-20 Voltage regulator, power supply and calibrator

Country Status (8)

Country Link
EP (1) EP0493003B1 (en)
AT (1) ATE160051T1 (en)
AU (1) AU658851B2 (en)
CA (1) CA2057163A1 (en)
DE (1) DE69128130T2 (en)
ES (1) ES2110982T3 (en)
IE (1) IE914192A1 (en)
NZ (1) NZ240879A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4342602A1 (en) * 1993-12-14 1995-06-22 Busch Dieter & Co Prueftech Electronic component, in particular coil unit
CN109904858B (en) * 2019-04-19 2024-06-28 中科典力(泉州)智能化设备有限公司 Electrified switching power control equipment capable of automatically regulating voltage and automatically metering
CN110618329B (en) * 2019-09-27 2024-04-19 合肥天力源电子科技有限公司 Test system and frequency hopping filter test device
CN113030835B (en) * 2021-02-05 2022-04-26 宁波三星医疗电气股份有限公司 Electric energy meter metering method
CN117147950B (en) * 2023-11-01 2024-01-09 广东科信电子有限公司 Automatic detection circuit for chip power supply voltage
CN117913943B (en) * 2024-01-05 2024-06-14 浙江天能电池(江苏)有限公司 Lithium battery voltage monitoring device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155266A (en) * 1984-03-02 1985-09-18 Ford Motor Co Solenoid driver circuit
WO1987001765A1 (en) * 1985-09-23 1987-03-26 Motorola, Inc. Solenoid driver control unit
US4893102A (en) * 1987-02-19 1990-01-09 Westinghouse Electric Corp. Electromagnetic contactor with energy balanced closing system

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4720761A (en) * 1987-02-19 1988-01-19 Westinghouse Electric Corp. Electromagnetic contactor with current regulated electromagnetic coil for holding the contacts closed

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2155266A (en) * 1984-03-02 1985-09-18 Ford Motor Co Solenoid driver circuit
WO1987001765A1 (en) * 1985-09-23 1987-03-26 Motorola, Inc. Solenoid driver control unit
US4893102A (en) * 1987-02-19 1990-01-09 Westinghouse Electric Corp. Electromagnetic contactor with energy balanced closing system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
IBM TECHNICAL DISCLOSURE BULLETIN vol. 27, no. 2, July 1984, pages 1057, New York, US; W. RENZ et al.: "Clocked Magnet Driver" *

Also Published As

Publication number Publication date
DE69128130D1 (en) 1997-12-11
EP0493003A2 (en) 1992-07-01
ATE160051T1 (en) 1997-11-15
AU9004791A (en) 1992-07-02
CA2057163A1 (en) 1992-06-29
AU658851B2 (en) 1995-05-04
NZ240879A (en) 1995-04-27
ES2110982T3 (en) 1998-03-01
DE69128130T2 (en) 1998-03-19
IE914192A1 (en) 1992-07-01
EP0493003B1 (en) 1997-11-05

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