GB959620A - Improvements in or relating to electric circuits for supplying a substantially constant current to a load - Google Patents

Improvements in or relating to electric circuits for supplying a substantially constant current to a load

Info

Publication number
GB959620A
GB959620A GB18231/62A GB1823162A GB959620A GB 959620 A GB959620 A GB 959620A GB 18231/62 A GB18231/62 A GB 18231/62A GB 1823162 A GB1823162 A GB 1823162A GB 959620 A GB959620 A GB 959620A
Authority
GB
United Kingdom
Prior art keywords
load
output
frequency
resistor
fed
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.)
Expired
Application number
GB18231/62A
Inventor
John Philip Clarke
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.)
General Electric Co PLC
Original Assignee
General Electric Co PLC
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
Application filed by General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB18231/62A priority Critical patent/GB959620A/en
Priority to US279142A priority patent/US3297880A/en
Priority to FR934464A priority patent/FR1356682A/en
Priority to DEG37732A priority patent/DE1262416B/en
Publication of GB959620A publication Critical patent/GB959620A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M3/00—Conversion of dc power input into dc power output
    • H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
    • H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
    • H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
    • H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
    • H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
    • H02M3/337—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration
    • H02M3/3376—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current
    • H02M3/3378—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only in push-pull configuration with automatic control of output voltage or current in a push-pull configuration of the parallel type
    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
    • G05F1/40—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices
    • G05F1/44—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using discharge tubes or semiconductor devices as final control devices semiconductor devices only

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Amplifiers (AREA)
  • Ac-Ac Conversion (AREA)

Abstract

959,620. Automatic control of electric current. GENERAL ELECTRIC CO. Ltd. May 3, 1963 [May 11, 1962], No. 18231/62. Heading G3R. In an automatic current control arrangement the output of an oscillator is fed through a frequency-sensitive network and a rectifier to a load and the frequency of the oscillator is varied so as to maintain the load current constant. As shown, the output of a multivibrator 3, comprising transistors 13, 14, is fed via a filter 4 to the input 27 of a power amplifier 5, comprising a driver and phase-splitter transistor 30 and push-pull connected transistors 31. The output of the power amplifier 5 is rectified by a full-wave rectifier 34, smoothed by capacitors 35, 36 and resistors 37-39 and fed to a load across output lines 11, +. The voltage across the resistor 38, representative of the load current, is fed through lines 40, 41 to a control amplifier, comprising transistors 40, 45, the input of which across a resistor 19 varies the bias to the multivibrator so varying the output frequency so as to tend to maintain the load current constant. The voltage across the resistor 39 is applied to an alarm circuit 42. When two similar arrangements are connected in series to a common load the multivibrator centre-frequencies differ to avoid low-frequency beats and the performance of one arrangement is degraded by a shunt resistor.
GB18231/62A 1962-05-11 1962-05-11 Improvements in or relating to electric circuits for supplying a substantially constant current to a load Expired GB959620A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB18231/62A GB959620A (en) 1962-05-11 1962-05-11 Improvements in or relating to electric circuits for supplying a substantially constant current to a load
US279142A US3297880A (en) 1962-05-11 1963-05-09 Electric circuits for supplying a substantially constant current to a load
FR934464A FR1356682A (en) 1962-05-11 1963-05-10 Electrical circuits supplying a current of constant intensity to a load
DEG37732A DE1262416B (en) 1962-05-11 1963-05-10 Circuit arrangement for supplying a load with a constant direct current

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18231/62A GB959620A (en) 1962-05-11 1962-05-11 Improvements in or relating to electric circuits for supplying a substantially constant current to a load

Publications (1)

Publication Number Publication Date
GB959620A true GB959620A (en) 1964-06-03

Family

ID=10108905

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18231/62A Expired GB959620A (en) 1962-05-11 1962-05-11 Improvements in or relating to electric circuits for supplying a substantially constant current to a load

Country Status (3)

Country Link
US (1) US3297880A (en)
DE (1) DE1262416B (en)
GB (1) GB959620A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137780A (en) * 1983-02-10 1984-10-10 Newton Derby Ltd Current regulated power supply circuit
GB2320342A (en) * 1996-12-14 1998-06-17 Jonathan Hugh Lambert Copus Voltage supply circuit with stabilised output control

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3400320A (en) * 1965-12-14 1968-09-03 Automatic Elect Lab Converter having diode rectifiers in a feedback voltage divider circuit for temperature compensation
DE2023726A1 (en) * 1969-05-15 1970-11-19 Merestechnikai Központi Kutato Laboratorium, Budapest Circuit arrangement for reducing the linearity errors of transducers giving frequency signals
US3686549A (en) * 1971-02-01 1972-08-22 Gen Motors Corp Power control system
JPS5325452Y2 (en) * 1973-06-09 1978-06-29
US4213064A (en) * 1978-04-04 1980-07-15 Nasa Redundant operation of counter modules
EP0173104B1 (en) * 1984-08-02 1993-05-12 Nec Corporation Power source system comprising a plurality of power sources having negative resistance characteristics

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2987664A (en) * 1958-05-23 1961-06-06 Ryan Aeronautical Co D. c. voltage regulator
US3010078A (en) * 1959-09-21 1961-11-21 Kauke & Company Inc Voltage controlled frequency circuit
US2991410A (en) * 1960-01-28 1961-07-04 Kaiser Ind Corp Static constant voltage d. c. to d. c. converter
US3183432A (en) * 1961-08-18 1965-05-11 Intron Int Inc Voltage or current regulator
US3197691A (en) * 1962-01-02 1965-07-27 Gen Electric Regulated power supply

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2137780A (en) * 1983-02-10 1984-10-10 Newton Derby Ltd Current regulated power supply circuit
GB2320342A (en) * 1996-12-14 1998-06-17 Jonathan Hugh Lambert Copus Voltage supply circuit with stabilised output control

Also Published As

Publication number Publication date
US3297880A (en) 1967-01-10
DE1262416B (en) 1968-03-07

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