GB1161242A - Control Circuits - Google Patents

Control Circuits

Info

Publication number
GB1161242A
GB1161242A GB971366A GB971366A GB1161242A GB 1161242 A GB1161242 A GB 1161242A GB 971366 A GB971366 A GB 971366A GB 971366 A GB971366 A GB 971366A GB 1161242 A GB1161242 A GB 1161242A
Authority
GB
United Kingdom
Prior art keywords
unit
thyristors
load
current
march
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
GB971366A
Inventor
Michael Arthur Gibbon
Michael Brown
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.)
English Electric Co Ltd
Original Assignee
English Electric Co Ltd
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 English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to GB971366A priority Critical patent/GB1161242A/en
Priority to CH277467A priority patent/CH459338A/en
Priority to FR96392A priority patent/FR1512295A/en
Priority to DE19671588147 priority patent/DE1588147A1/en
Publication of GB1161242A publication Critical patent/GB1161242A/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
    • H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
    • H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
    • H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
    • H02M3/125—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • H02M3/135—Conversion of dc power input into dc power output without intermediate conversion into ac 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
    • 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
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/72—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region
    • H03K17/73—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices having more than two PN junctions; having more than three electrodes; having more than one electrode connected to the same conductivity region for dc voltages or currents

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Power Engineering (AREA)
  • Electronic Switches (AREA)

Abstract

1,161,242. Cyclic switching systems. ENGLISH ELECTRIC CO. Ltd. 2 March, 1967 [4 March, 1966], No. 9713/66. Heading H2H. [Also in Division G3] A circuit for regulating and reversing the current through a D.C. load across terminals 12, 13 comprises series pairs of switches, e.g. thyristors 8, 10, one e.g. 8 unit 1 of which determines the polarity and the other pair 8, 10 unit 2 being fired alternately to determine the mark space ratio. With opposite pairs, 8 unit 1, 10 unit 2 conductive, firing thyristor 8 unit 2 places most of the supply voltage across one half of tapped inductor 7 unit, the induced reverse voltage across the other half extinguishing thyristor 10. The thyristors may be manually controlled from a mark space circuit, or automatically controlled by load voltage or current from a pair of bi-stable stages 17, 18, Fig. 3, each driven from an integrator 15, 16, the latter being fed with both an error signal from isolator unit 25 and a reference signal, the polarity of which determines which of thyristors 8, 10 unit 1 are fired to determine the current direction in the load.
GB971366A 1966-03-04 1966-03-04 Control Circuits Expired GB1161242A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB971366A GB1161242A (en) 1966-03-04 1966-03-04 Control Circuits
CH277467A CH459338A (en) 1966-03-04 1967-02-24 Electrical control circuit comprising two bistable devices
FR96392A FR1512295A (en) 1966-03-04 1967-02-24 Electrical control of an output circuit by two bistable devices
DE19671588147 DE1588147A1 (en) 1966-03-04 1967-03-03 Control or regulating circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB971366A GB1161242A (en) 1966-03-04 1966-03-04 Control Circuits

Publications (1)

Publication Number Publication Date
GB1161242A true GB1161242A (en) 1969-08-13

Family

ID=9877348

Family Applications (1)

Application Number Title Priority Date Filing Date
GB971366A Expired GB1161242A (en) 1966-03-04 1966-03-04 Control Circuits

Country Status (4)

Country Link
CH (1) CH459338A (en)
DE (1) DE1588147A1 (en)
FR (1) FR1512295A (en)
GB (1) GB1161242A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162664A (en) * 1984-07-30 1986-02-05 Westinghouse Brake & Signal Power control circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2344171A1 (en) * 1976-03-11 1977-10-07 Cit Alcatel CHOPPER CONTAINING TRANSISTOR SWITCHES

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2162664A (en) * 1984-07-30 1986-02-05 Westinghouse Brake & Signal Power control circuit

Also Published As

Publication number Publication date
CH459338A (en) 1968-07-15
FR1512295A (en) 1968-02-02
DE1588147A1 (en) 1970-12-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees