GB1217790A - Control by trigger circuit - Google Patents

Control by trigger circuit

Info

Publication number
GB1217790A
GB1217790A GB3992468A GB3992468A GB1217790A GB 1217790 A GB1217790 A GB 1217790A GB 3992468 A GB3992468 A GB 3992468A GB 3992468 A GB3992468 A GB 3992468A GB 1217790 A GB1217790 A GB 1217790A
Authority
GB
United Kingdom
Prior art keywords
supply
diode
controlled rectifier
capacitor
resistor
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
GB3992468A
Inventor
Geoffrey Duddridge
John Rabson
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.)
STC PLC
Original Assignee
Standard Telephone and Cables 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 Standard Telephone and Cables PLC filed Critical Standard Telephone and Cables PLC
Priority to GB3992468A priority Critical patent/GB1217790A/en
Publication of GB1217790A publication Critical patent/GB1217790A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Prepayment Telephone Systems (AREA)

Abstract

1,217,790. Electric supply systems; electric converting systems. STANDARD TELEPHONES & CABLES Ltd. 21 Aug., 1968, No. 39924/68. Headings H2F and H2H. A circuit arrangement for controlling the supply of A.C. to a load via a single controlled rectifier has gate control means for triggering said controlled rectifier into a conducting condition at a submultiple of the supply frequency. As shown the gate control means is a capacitor C2 with a diode D4 and resistor R3 providing a unidirectional changing path from the supply, having a time constant in excess of one half cycle of the supply. When the capacitor is charged to the breakdown voltage of a diode D5 the capacitor discharges through the diode D5 and resistor R4 to fire the controlled rectifier S3.
GB3992468A 1968-08-21 1968-08-21 Control by trigger circuit Expired GB1217790A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3992468A GB1217790A (en) 1968-08-21 1968-08-21 Control by trigger circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3992468A GB1217790A (en) 1968-08-21 1968-08-21 Control by trigger circuit

Publications (1)

Publication Number Publication Date
GB1217790A true GB1217790A (en) 1970-12-31

Family

ID=10412230

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3992468A Expired GB1217790A (en) 1968-08-21 1968-08-21 Control by trigger circuit

Country Status (1)

Country Link
GB (1) GB1217790A (en)

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