GB622600A - Improvements in and relating to the operation of fluorescent lamps from low voltage d.c. circuits - Google Patents

Improvements in and relating to the operation of fluorescent lamps from low voltage d.c. circuits

Info

Publication number
GB622600A
GB622600A GB874847A GB874847A GB622600A GB 622600 A GB622600 A GB 622600A GB 874847 A GB874847 A GB 874847A GB 874847 A GB874847 A GB 874847A GB 622600 A GB622600 A GB 622600A
Authority
GB
United Kingdom
Prior art keywords
relating
circuits
low voltage
fluorescent lamps
condenser
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
GB874847A
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.)
HAROLD TOWNLEY BALDWIN
Original Assignee
HAROLD TOWNLEY BALDWIN
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 HAROLD TOWNLEY BALDWIN filed Critical HAROLD TOWNLEY BALDWIN
Priority to GB874847A priority Critical patent/GB622600A/en
Publication of GB622600A publication Critical patent/GB622600A/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

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

622,600. Supply systems for discharge lamps. BROOKE, W., and BALDWIN, H. T. April 1, 1947, No. 8748. [Class 38 (iv)] A fluorescent lamp is supplied from a battery A through a vibrator B and transformer C, the primary winding being centre-tapped and the secondary windings shunted by a condenser to improve commutation. The filamentary electrodes are in series with the secondary winding, a variable choke E and a condenser G, which last gives a resonant starting voltage and is shunted. out by the lamp when started.
GB874847A 1947-04-01 1947-04-01 Improvements in and relating to the operation of fluorescent lamps from low voltage d.c. circuits Expired GB622600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB874847A GB622600A (en) 1947-04-01 1947-04-01 Improvements in and relating to the operation of fluorescent lamps from low voltage d.c. circuits

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB874847A GB622600A (en) 1947-04-01 1947-04-01 Improvements in and relating to the operation of fluorescent lamps from low voltage d.c. circuits

Publications (1)

Publication Number Publication Date
GB622600A true GB622600A (en) 1949-05-04

Family

ID=9858526

Family Applications (1)

Application Number Title Priority Date Filing Date
GB874847A Expired GB622600A (en) 1947-04-01 1947-04-01 Improvements in and relating to the operation of fluorescent lamps from low voltage d.c. circuits

Country Status (1)

Country Link
GB (1) GB622600A (en)

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