GB850961A - Improvements in and relating to electric discharge tube systems - Google Patents

Improvements in and relating to electric discharge tube systems

Info

Publication number
GB850961A
GB850961A GB3278255A GB3278255A GB850961A GB 850961 A GB850961 A GB 850961A GB 3278255 A GB3278255 A GB 3278255A GB 3278255 A GB3278255 A GB 3278255A GB 850961 A GB850961 A GB 850961A
Authority
GB
United Kingdom
Prior art keywords
discharge
tube
source
voltage
tubes
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
GB3278255A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3278255A priority Critical patent/GB850961A/en
Publication of GB850961A publication Critical patent/GB850961A/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
    • H05B41/24—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency
    • H05B41/245—Circuit arrangements in which the lamp is fed by high frequency ac, or with separate oscillator frequency for a plurality of lamps

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

850,961. Control systems for discharge lamps. WARNER, A. R., and WARD. D. A. Nov. 9, 1956 [Nov. 16, 1955], No. 32782/55. Class 38 (4). An electric discharge tube installation is provided with two sources of power, one being of zero or low frequency, the other of high frequency, the voltage of the zero or low frequency source being -without the assistance of the voltage of the high frequency source-unable to initiate a discharge in the discharge tubes in the installation. A discharge tube installation comprises a number of discharge tubes Ta, Tb ... Tn, these tubes being supplied in parallel from a direct current source A, the voltage of which is insufficient to initiate a discharge in any of the tubes. The discharge in tube Ta is initiated by the application of a high frequency voltage thereto from a source B, the voltage gradually increasing from zero to a maximum, thus the discharge gradually spreads along the tube from one end. When the tube Ta is fully ignited a relay Ra operates to change over contacts Ral so that the high frequency voltage from the source B is applied to the tube Tb. As the voltage rises once more from zero the discharge spreads along the tube Tb as in the first tube, the operation proceeding until all the tubes in the installation are ignited. The return of the high frequency voltage to zero after each tube is ignited is caused by a pulse which is induced in a transformer Trp in the direct current supply at the completion of the discharge in each tube, the pulse being applied to the high frequency source through a noise limiting device C. The on and off times of the tubes are controlled by a device D. The magnitude of the voltage of the D.C. source may be such that it may-or may not-sustain the discharge in the tubes as desired. The D.C. source may be replaced by a low frequency A.C. source. Specification 679,368 is referred to.
GB3278255A 1955-11-16 1955-11-16 Improvements in and relating to electric discharge tube systems Expired GB850961A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3278255A GB850961A (en) 1955-11-16 1955-11-16 Improvements in and relating to electric discharge tube systems

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3278255A GB850961A (en) 1955-11-16 1955-11-16 Improvements in and relating to electric discharge tube systems

Publications (1)

Publication Number Publication Date
GB850961A true GB850961A (en) 1960-10-12

Family

ID=10343921

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3278255A Expired GB850961A (en) 1955-11-16 1955-11-16 Improvements in and relating to electric discharge tube systems

Country Status (1)

Country Link
GB (1) GB850961A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828221A (en) * 1972-08-29 1974-08-06 Rem Research Ballast circuit for a plurality of lamps
FR2468277A1 (en) * 1979-10-16 1981-04-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh BALLAST FOR LOW PRESSURE DISCHARGE LAMPS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3828221A (en) * 1972-08-29 1974-08-06 Rem Research Ballast circuit for a plurality of lamps
FR2468277A1 (en) * 1979-10-16 1981-04-30 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh BALLAST FOR LOW PRESSURE DISCHARGE LAMPS

Similar Documents

Publication Publication Date Title
CA413111A (en) Voltage regulating apparatus
GB850961A (en) Improvements in and relating to electric discharge tube systems
GB562197A (en) Improvements relating to automatic arc welding
GB815016A (en) Improvements in or relating to regulated electric power supply equipment
CA556366A (en) Leakage transformer for energizing an electrical discharge tube
CA423675A (en) Voltage regulation and supply system
CA391229A (en) High voltage supply circuit for television systems
CA399623A (en) Circuit arrangement for discharge apparatus systems
CA621216A (en) Control circuit for discharge tubes
CA415063A (en) Arc discharge control device
GB599262A (en) Improvements in supply circuits for electric discharge tubes
GB792915A (en) Method for utilizing electrical energy
GB581199A (en) Improved starting arrangements for electric discharge lamps
CA400961A (en) Electrical system control apparatus
CA574415A (en) Direct current voltage transforming system for power supply
CA675196A (en) Anode structure for glow discharge apparatus
CA416050A (en) Circuit controlling device for electrical switching apparatus
CA414521A (en) Electric arc current supply apparatus
CA400814A (en) Electric discharge device control system
GB582335A (en) Systems for supplying electric current impulses suitable for welding
CA594349A (en) Glow discharge tube supply system
AU258342B2 (en) Power supply circuit for glow tubes andthe like
CA595343A (en) Electron tube power supply circuits
AU266755B2 (en) Method for producing an indirectly heated cathode foran electric discharge tube
CA399716A (en) Electrical control apparatus