GB604513A - Improvements in and relating to circuits for electric discharge lamps - Google Patents

Improvements in and relating to circuits for electric discharge lamps

Info

Publication number
GB604513A
GB604513A GB670145A GB670145A GB604513A GB 604513 A GB604513 A GB 604513A GB 670145 A GB670145 A GB 670145A GB 670145 A GB670145 A GB 670145A GB 604513 A GB604513 A GB 604513A
Authority
GB
United Kingdom
Prior art keywords
choke
discharge lamps
resistor
condensers
relating
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
GB670145A
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.)
General Electric Co PLC
Original Assignee
General Electric Co 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 General Electric Co PLC filed Critical General Electric Co PLC
Priority to GB670145A priority Critical patent/GB604513A/en
Publication of GB604513A publication Critical patent/GB604513A/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
    • H05B41/18—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 a starting switch

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

604,513. Control systems for space-discharge lamps ; protective arrangements. GENERAL ELECTRIC CO., Ltd., and BLOCH, A. March 16, 1945, No. 6701. Drawings to Specification. [Class 38 (iv)] To suppress radio-interference generated in a discharge-lamp circuit the ballast choke or resistor is divided into two parts with one part connected in each of the electrode supply leads, and two series connected condensers having the junction point connected to earth are connected between the supply leads on both sides of the double choke or resistor. In the case of a choke, the two windings may be on the same or separate limbs of a common magnetic core and may be tapped to correspond with different supply voltages. According to the Provisional Specification the condensers may be omitted and stray capacity relied upon.
GB670145A 1945-03-16 1945-03-16 Improvements in and relating to circuits for electric discharge lamps Expired GB604513A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB670145A GB604513A (en) 1945-03-16 1945-03-16 Improvements in and relating to circuits for electric discharge lamps

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB670145A GB604513A (en) 1945-03-16 1945-03-16 Improvements in and relating to circuits for electric discharge lamps

Publications (1)

Publication Number Publication Date
GB604513A true GB604513A (en) 1948-07-06

Family

ID=9819210

Family Applications (1)

Application Number Title Priority Date Filing Date
GB670145A Expired GB604513A (en) 1945-03-16 1945-03-16 Improvements in and relating to circuits for electric discharge lamps

Country Status (1)

Country Link
GB (1) GB604513A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977530C (en) * 1950-10-13 1966-11-24 Siemens Ag Arrangement for eliminating interference voltages occurring in fluorescent tubes
WO2012164588A1 (en) * 2011-05-31 2012-12-06 Giacomo Srl High-efficiency electronic device for turning on and power supplying of lamps

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE977530C (en) * 1950-10-13 1966-11-24 Siemens Ag Arrangement for eliminating interference voltages occurring in fluorescent tubes
WO2012164588A1 (en) * 2011-05-31 2012-12-06 Giacomo Srl High-efficiency electronic device for turning on and power supplying of lamps

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