GB1188318A - Electric Power Control by Antiparallel-Connected Semiconductor Controlled Rectifiers - Google Patents

Electric Power Control by Antiparallel-Connected Semiconductor Controlled Rectifiers

Info

Publication number
GB1188318A
GB1188318A GB5718467A GB5718467A GB1188318A GB 1188318 A GB1188318 A GB 1188318A GB 5718467 A GB5718467 A GB 5718467A GB 5718467 A GB5718467 A GB 5718467A GB 1188318 A GB1188318 A GB 1188318A
Authority
GB
United Kingdom
Prior art keywords
control
thyristors
antiparallel
electric power
power control
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
GB5718467A
Inventor
Antal Scheidl
Miklos Palfy
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.)
ELEKTROIMPEX MAGYAR HIRADAS TE
Original Assignee
ELEKTROIMPEX MAGYAR HIRADAS TE
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 ELEKTROIMPEX MAGYAR HIRADAS TE filed Critical ELEKTROIMPEX MAGYAR HIRADAS TE
Priority to GB5718467A priority Critical patent/GB1188318A/en
Publication of GB1188318A publication Critical patent/GB1188318A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G05F1/45—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 being controlled rectifiers in series with the load
    • G05F1/455—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 being controlled rectifiers in series with the load with phase control
    • 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
    • H02M5/00—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases
    • H02M5/02—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc
    • H02M5/04—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters
    • H02M5/22—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M5/25—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means
    • H02M5/257—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only
    • H02M5/2573—Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases without intermediate conversion into dc by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a thyratron or thyristor type requiring extinguishing means using semiconductor devices only with control circuit

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)
  • Rectifiers (AREA)

Abstract

1,188,318. Control of A.C. power. ELEKTROIMPEX MAGYAR HIRADASTECHNIKAI ES FINOMMECHANIKAI KULKERESKEDELMI VALLALAT. 15 Dec., 1967, No. 57184/67. Heading H2H. [Also in Division G3] A circuit for controlling reverse parallel connected thyristors 7 comprises a pair of capacitors charged through diodes arranged in push-pull connection from an A.C. supply, a variable D.C. bias on the diodes provided by a control means 1 which varies the charging time, the capacitor voltages being shaped in signal forming units 3 the outputs from which are differentiated in units 4, into square waves amplified and supplied through a transformer 6 to the control electrodes of the thyristors. The circuit partly compensates for mains voltage variations as a low voltage causes the amplitude of output signals from unit 2 to decrease and hence advance the firing point of thyristors 7. The control input signal to means I may be provided by a programme unit. The arrangement may control the lighting in a television or motion picture studio.
GB5718467A 1967-12-15 1967-12-15 Electric Power Control by Antiparallel-Connected Semiconductor Controlled Rectifiers Expired GB1188318A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB5718467A GB1188318A (en) 1967-12-15 1967-12-15 Electric Power Control by Antiparallel-Connected Semiconductor Controlled Rectifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5718467A GB1188318A (en) 1967-12-15 1967-12-15 Electric Power Control by Antiparallel-Connected Semiconductor Controlled Rectifiers

Publications (1)

Publication Number Publication Date
GB1188318A true GB1188318A (en) 1970-04-15

Family

ID=10478571

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5718467A Expired GB1188318A (en) 1967-12-15 1967-12-15 Electric Power Control by Antiparallel-Connected Semiconductor Controlled Rectifiers

Country Status (1)

Country Link
GB (1) GB1188318A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427709A2 (en) * 1987-04-21 1991-05-15 Lutron Electronics Co., Inc. Power control circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0427709A2 (en) * 1987-04-21 1991-05-15 Lutron Electronics Co., Inc. Power control circuit
EP0427709A3 (en) * 1987-04-21 1993-01-27 Lutron Electronics Co., Inc. Power control circuit

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Legal Events

Date Code Title Description
416 Proceeding under section 16 patents act 1949
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees