GB1095283A - Improvements in and relating to electric supply apparatus - Google Patents

Improvements in and relating to electric supply apparatus

Info

Publication number
GB1095283A
GB1095283A GB2103863A GB2103863A GB1095283A GB 1095283 A GB1095283 A GB 1095283A GB 2103863 A GB2103863 A GB 2103863A GB 2103863 A GB2103863 A GB 2103863A GB 1095283 A GB1095283 A GB 1095283A
Authority
GB
United Kingdom
Prior art keywords
capacitor
condition
discharge lamp
relating
voltage
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
GB2103863A
Inventor
David Rex Bridges
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.)
Advance Electronics Ltd
Original Assignee
Advance Electronics Ltd
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 Advance Electronics Ltd filed Critical Advance Electronics Ltd
Priority to GB2103863A priority Critical patent/GB1095283A/en
Publication of GB1095283A publication Critical patent/GB1095283A/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
    • H05B41/36—Controlling
    • H05B41/38—Controlling the intensity of light
    • H05B41/40—Controlling the intensity of light discontinuously
    • H05B41/42—Controlling the intensity of light discontinuously in two steps only

Landscapes

  • Circuit Arrangements For Discharge Lamps (AREA)

Abstract

1,095,283. Discharge lamp circuits. ADVANCE ELECTRONICS Ltd. July 17, 1964 [May 27, 1963], No. 21038/63. Heading H2H. A mercury vapour discharge lamp is connected in series with a capacitor 6 across taps on a leakage transformer 1-4 which is arranged so that the lowest voltage tap gives a condition nearest to resonance hence the no-load voltage is not reduced in proportion to the tapping voltage. The secondary winding 3 operates in a condition of saturation and a magnetic shunt 4 divides it from the primary winding. A capacitor 12 avoids an open circuit condition for the lamp when changing tappings, which capacitor also resonates during starting. Circuit values for the capacitors are given in the Specification.
GB2103863A 1963-05-27 1963-05-27 Improvements in and relating to electric supply apparatus Expired GB1095283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2103863A GB1095283A (en) 1963-05-27 1963-05-27 Improvements in and relating to electric supply apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2103863A GB1095283A (en) 1963-05-27 1963-05-27 Improvements in and relating to electric supply apparatus

Publications (1)

Publication Number Publication Date
GB1095283A true GB1095283A (en) 1967-12-13

Family

ID=10156134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2103863A Expired GB1095283A (en) 1963-05-27 1963-05-27 Improvements in and relating to electric supply apparatus

Country Status (1)

Country Link
GB (1) GB1095283A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0542425A1 (en) * 1991-11-15 1993-05-19 Hubbell Incorporated Step-dimming magnetic regulator for discharge lamps

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0542425A1 (en) * 1991-11-15 1993-05-19 Hubbell Incorporated Step-dimming magnetic regulator for discharge lamps

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