GB918475A - Starting and operating circuit for gaseous discharge devices - Google Patents

Starting and operating circuit for gaseous discharge devices

Info

Publication number
GB918475A
GB918475A GB2200961A GB2200961A GB918475A GB 918475 A GB918475 A GB 918475A GB 2200961 A GB2200961 A GB 2200961A GB 2200961 A GB2200961 A GB 2200961A GB 918475 A GB918475 A GB 918475A
Authority
GB
United Kingdom
Prior art keywords
lamp
winding
oscillator
supply
transformer
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
GB2200961A
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.)
Basic Products Corp
Original Assignee
Basic Products Corp
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 Basic Products Corp filed Critical Basic Products Corp
Publication of GB918475A publication Critical patent/GB918475A/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
    • H05B41/16—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies
    • H05B41/20—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch
    • H05B41/23—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode
    • H05B41/231—Circuit arrangements in which the lamp is fed by dc or by low-frequency ac, e.g. by 50 cycles/sec ac, or with network frequencies having no starting switch for lamps not having an auxiliary starting electrode for high-pressure lamps

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

918,475. Control systems for high-pressure discharge lamps. BASIC PRODUCTS CORPORATION. June 19, 1961 [July 28, 1960], No. 22009/61. Classes 38 (2) and 38 (4). Apparatus for starting and operating a highpressure high-intensity discharge lamp 12 of the xenon type wherein the lamp is started by means of alternating current and operated by means of direct current comprises a rectifier 15 over which the lamp 12 is supplied from an A.C. source 11, a combination including a highreactance transformer 13 and a capacitor 39 being included in the supply to the rectifier 15 whereby a substantially constant output voltage and current is maintained at the lamp 12 irrespective of changes in the source voltage, a spark gap oscillator 17 being provided to inject high-frequency high voltages into the lamp circuit by way of a transformer 58 having a ferrite core to initiate ionization of the lamp 12. A relay having a winding 76 in the lamp circuit is provided whereby when the lamp 12 strikes the relay contacts 18 open to remove the supply to the oscillator 17. A safety relay is provided having a winding 77 so that should the lamp fail to strike after a given time the relay contacts 19 open to remove the supply to the oscillator 17. The high-reactance transformer (see Fig. 2) has a primary winding 43 and a secondary winding 44 arranged on the centre limb 42 of a laminated core 41, magnetic shunts 49, 53 having air gaps 52, 55 therein being arranged between the primary and secondary windings. Specifications 529,420, 599,802 and 798,764 are referred to.
GB2200961A 1960-07-28 1961-06-19 Starting and operating circuit for gaseous discharge devices Expired GB918475A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4587160A 1960-07-28 1960-07-28

Publications (1)

Publication Number Publication Date
GB918475A true GB918475A (en) 1963-02-13

Family

ID=21940306

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2200961A Expired GB918475A (en) 1960-07-28 1961-06-19 Starting and operating circuit for gaseous discharge devices

Country Status (1)

Country Link
GB (1) GB918475A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190568B (en) * 1963-09-18 1965-04-08 Patra Patent Treuhand Ignitor for electric discharge lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1190568B (en) * 1963-09-18 1965-04-08 Patra Patent Treuhand Ignitor for electric discharge lamps

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