GB1201120A - A.c. regulator circuit - Google Patents

A.c. regulator circuit

Info

Publication number
GB1201120A
GB1201120A GB3992368A GB3992368A GB1201120A GB 1201120 A GB1201120 A GB 1201120A GB 3992368 A GB3992368 A GB 3992368A GB 3992368 A GB3992368 A GB 3992368A GB 1201120 A GB1201120 A GB 1201120A
Authority
GB
United Kingdom
Prior art keywords
capacitor
transistor
circuit
resistor
ceases
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
GB3992368A
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 GB3992368A priority Critical patent/GB1201120A/en
Publication of GB1201120A publication Critical patent/GB1201120A/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
    • 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
    • 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
    • G05F1/452—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 pulse-burst modulation control

Abstract

1,201,120. Control circuit for domestic heating equipment. STANDARD TELEPHONES & CABLES Ltd. 21 Aug., 1968, No. 39923/68. Heading H2H. A circuit arrangement for regulating A.C. supply to a load includes a trigger circuit which delivers a control signal to a controlled switching element, and a variable element which can inhibit the trigger circuit for one or more whole cycles of the supply. As shown a transistor T1 receives negative to positive zerocrossing pulses through a capacitor C 1 and conducts to fire a second transistor T2 so that potential from P is applied through resistor R1 to charge a capacitor C biasing T 1 and thus T 2 to become hard turned on. Resistor R 1 and capacitor C are such that C is fully charged in one half cycle and the transistor T 1 , and thus transistor T 2 ceases to conduct. When T 2 conducts the potential P is also applied to a circuit including a transformer L whose secondaries 5, 6 are pulsed to switch controlled rectifiers S 1 , S 2 whenever the transistor T 2 starts or ceases to conduct. A variable resistor R v in circuit with diodes D 1 and D 2 and capacitor C controls the discharge of the capacitor to inhibit whole cycles of operation. R v may be controlled by heat or light or may be connected to a Zener diode for voltage setting (Fig. 3, not shown). The transformer L may have its two secondary windings connected to control a single thyristor which forms the diagonal element of a rectifier bridge in series with the load (Fig. 4, not shown).
GB3992368A 1968-08-21 1968-08-21 A.c. regulator circuit Expired GB1201120A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3992368A GB1201120A (en) 1968-08-21 1968-08-21 A.c. regulator circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3992368A GB1201120A (en) 1968-08-21 1968-08-21 A.c. regulator circuit

Publications (1)

Publication Number Publication Date
GB1201120A true GB1201120A (en) 1970-08-05

Family

ID=10412224

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3992368A Expired GB1201120A (en) 1968-08-21 1968-08-21 A.c. regulator circuit

Country Status (1)

Country Link
GB (1) GB1201120A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3539647A1 (en) * 1985-11-08 1987-05-14 Bbc Brown Boveri & Cie Circuit arrangement for a pulse-controlled AC power controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3539647A1 (en) * 1985-11-08 1987-05-14 Bbc Brown Boveri & Cie Circuit arrangement for a pulse-controlled AC power controller

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Legal Events

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