GB953394A - Switching circuits employing semi-conductor controlled rectifiers - Google Patents

Switching circuits employing semi-conductor controlled rectifiers

Info

Publication number
GB953394A
GB953394A GB1369661A GB1369661A GB953394A GB 953394 A GB953394 A GB 953394A GB 1369661 A GB1369661 A GB 1369661A GB 1369661 A GB1369661 A GB 1369661A GB 953394 A GB953394 A GB 953394A
Authority
GB
United Kingdom
Prior art keywords
load
controlled rectifier
controlled
semi
rectifier
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
GB1369661A
Inventor
Sidney Basil Smith
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.)
Lucas Support Services Ltd
Original Assignee
Rotax 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 Rotax Ltd filed Critical Rotax Ltd
Priority to GB1369661A priority Critical patent/GB953394A/en
Publication of GB953394A publication Critical patent/GB953394A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

  • Rectifiers (AREA)

Abstract

953,394. Semi-conductor controlled-rectifier switching circuits. ROTAX Ltd. March 26, 1962 [April 17, 1961], No. 13696/61. Heading H3T. In a circuit in which two semi-conductor controlled rectifiers 3, 4 each in series with a respective load 6, 7 are connected with appropriate polarity between the positive and negative terminals 1, 2 of a supply source and a commutating capacitor 5 is connected between the junction points of each controlled rectifier with its corresponding load so that effectively bistable operation may be achieved by the application in alternation of triggering pulses, derived for example from multivibrator 10, to the gate electrodes of the two controlled rectifiers, switching of one controlled rectifier to its conducting state resulting in the transmission via the capacitor 5 of a pulse switching the other transistor off, the series combination of a third semi-conductor controlled rectifier 8 and a load 9 is connected in parallel with one of the previously-mentioned loads 6, means being provided which when the controlled rectifier 3 in series with the controlled rectifier 8 and load 9 commence conducting is effective to trigger the controlled rectifier 8 after a variable delay. In the circuit shown, such means is constituted by a pulse generator 11 of variable mark-space ratio. By this means the time for which current flows through the load 9, which may be the field winding of a generator, may be varied between zero and a maximum equal to the period for which controlled rectifier 3 conducts although the period for which current flows through load 6 cannot be reduced below a predetermined minimum value. The loads may alternatively be connected in the anode circuits of the controlled rectifiers with the capacitor 5 connected between the anodes.
GB1369661A 1961-04-17 1961-04-17 Switching circuits employing semi-conductor controlled rectifiers Expired GB953394A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1369661A GB953394A (en) 1961-04-17 1961-04-17 Switching circuits employing semi-conductor controlled rectifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1369661A GB953394A (en) 1961-04-17 1961-04-17 Switching circuits employing semi-conductor controlled rectifiers

Publications (1)

Publication Number Publication Date
GB953394A true GB953394A (en) 1964-03-25

Family

ID=10027738

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1369661A Expired GB953394A (en) 1961-04-17 1961-04-17 Switching circuits employing semi-conductor controlled rectifiers

Country Status (1)

Country Link
GB (1) GB953394A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309535A (en) * 1964-08-28 1967-03-14 Westinghouse Electric Corp Switching circuitry for semiconductive controlled rectifiers

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3309535A (en) * 1964-08-28 1967-03-14 Westinghouse Electric Corp Switching circuitry for semiconductive controlled rectifiers

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