GB701811A - Improvements in or relating to an energizing circuit for gaseous discharge lamps - Google Patents

Improvements in or relating to an energizing circuit for gaseous discharge lamps

Info

Publication number
GB701811A
GB701811A GB10188/51A GB1018851A GB701811A GB 701811 A GB701811 A GB 701811A GB 10188/51 A GB10188/51 A GB 10188/51A GB 1018851 A GB1018851 A GB 1018851A GB 701811 A GB701811 A GB 701811A
Authority
GB
United Kingdom
Prior art keywords
lamp
contact means
transformer
starting
spaced contacts
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
GB10188/51A
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.)
SOLA ELECTRIC Co
Original Assignee
SOLA ELECTRIC Co
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 SOLA ELECTRIC Co filed Critical SOLA ELECTRIC Co
Publication of GB701811A publication Critical patent/GB701811A/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
    • H05B41/232—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 low-pressure lamps
    • H05B41/2325—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 low-pressure lamps provided with pre-heating electrodes

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

701,811. Supply systems for series connected space discharge apparatus. SOLA ELECTRIC CO. May 1, 1951 [May 9, 1950], No. 10188/51. Class 38 (4). [Also in Group XXXVI] An energizing circuit for two discharge lamps 16, 17 and designed to prevent the high starting voltage appearing across the lamp socket terminals when either lamp is removed therefrom comprises a starting and running transformer having primary and secondary windings 18, 19 and two pairs 12, 14 and 13, 15 of spaced contact means for engaging the lamp terminals 33, 46 and 39, 50, the first contact means 12, 13 of each pair including two spaced contacts 29, 31 and 36, 37 to jointly receive a lamp terminal 33, 39 so as to be interconnected thereby, one 29, 37, of the spaced contacts of each of the first contact means being connected to the primary winding 18, the other spaced contacts 31, 36 being connected to a supply S, and the second contact means 14, 15 being connected to the secondary winding 19. Thereby removal of either lamp open-circuits the primary Winding 18. The transformer may have a high-reactance which may be provided by magnetic shunts as disclosed in Specification 599,802 and as also disclosed therein a condenser 21 may resonate with the transformer leakage reactance to control the lamp running current. the series combination of a resistor 22 and a condenser 23, or either, may be shunted across lamp 17 to provide sequential lamp starting.
GB10188/51A 1950-05-09 1951-05-01 Improvements in or relating to an energizing circuit for gaseous discharge lamps Expired GB701811A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US701811XA 1950-05-09 1950-05-09

Publications (1)

Publication Number Publication Date
GB701811A true GB701811A (en) 1954-01-06

Family

ID=22093650

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10188/51A Expired GB701811A (en) 1950-05-09 1951-05-01 Improvements in or relating to an energizing circuit for gaseous discharge lamps

Country Status (1)

Country Link
GB (1) GB701811A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337880A (en) * 1998-05-26 1999-12-01 Oa Micro International Ltd Circuit for energising cold cathode fluorescent lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2337880A (en) * 1998-05-26 1999-12-01 Oa Micro International Ltd Circuit for energising cold cathode fluorescent lamps

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