GB1052591A - - Google Patents

Info

Publication number
GB1052591A
GB1052591A GB3346563A GB3346563A GB1052591A GB 1052591 A GB1052591 A GB 1052591A GB 3346563 A GB3346563 A GB 3346563A GB 3346563 A GB3346563 A GB 3346563A GB 1052591 A GB1052591 A GB 1052591A
Authority
GB
United Kingdom
Prior art keywords
tube
aug
sawtooth
source
extinguished
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
GB3346563A
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 filed Critical
Publication of GB1052591A publication Critical patent/GB1052591A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B41/00—Circuit arrangements or apparatus for igniting or operating discharge lamps
    • H05B41/14—Circuit arrangements
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/39—Controlling the intensity of light continuously
    • H05B41/392—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor
    • H05B41/3921—Controlling the intensity of light continuously using semiconductor devices, e.g. thyristor with possibility of light intensity variations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J17/00—Gas-filled discharge tubes with solid cathode
    • H01J17/02—Details
    • H01J17/04—Electrodes; Screens
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/1213—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers for DC-DC converters
    • 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
    • H02M1/00—Details of apparatus for conversion
    • H02M1/02—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters
    • H02M1/04—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters for tubes with grid control
    • H02M1/042—Circuits specially adapted for the generation of grid-control or igniter-control voltages for discharge tubes incorporated in static converters for tubes with grid control wherein the phase of the control voltage is adjustable with reference to the AC voltage

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Generation Of Surge Voltage And Current (AREA)

Abstract

1,052,591. Charging and discharging capacitors. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Aug. 23, 1963 [Aug. 27, 1962], No. 33465/63. Heading H2H. In a circuit such as is disclosed in Specification 916,939 wherein sawtooth pulses across a resistor 5 plus a fixed bias source 6, 7 are applied to a discharge tube 1 which periodically discharges a capacitor 13 through a transformer 15, a definite cut-off of tube 1 is ensured by a tube 2 arranged to fire immediately after tube 1 thus taking the control grid of tube 1 to the negative voltage, e.g. - 20 v. of source 6. Tube 2 is extinguished when the sawtooth voltage decreases.
GB3346563A 1962-08-27 1963-08-23 Expired GB1052591A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL282548 1962-08-27

Publications (1)

Publication Number Publication Date
GB1052591A true GB1052591A (en) 1966-12-30

Family

ID=19754068

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3346563A Expired GB1052591A (en) 1962-08-27 1963-08-23

Country Status (6)

Country Link
US (1) US3323011A (en)
JP (1) JPS4013210B1 (en)
CH (1) CH427048A (en)
FR (1) FR1373862A (en)
GB (1) GB1052591A (en)
NL (1) NL282548A (en)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2490562A (en) * 1943-01-26 1949-12-06 Hartford Nat Bank & Trust Co Current interrupting circuit
DE1105073B (en) * 1955-04-23 1961-04-20 Siemens Ag Device for controlling the end time of the burning time of electrical metal vapor or gas discharge vessels by means of an arrangement for applying a potential negative compared to the cathode of the converter vessel to an auxiliary electrode flushed by the plasma of the main discharge

Also Published As

Publication number Publication date
US3323011A (en) 1967-05-30
CH427048A (en) 1966-12-31
JPS4013210B1 (en) 1965-06-26
NL282548A (en)
FR1373862A (en) 1964-10-02

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