GB563376A - Improvements in or relating to circuit arrangements for discharge lamps and tubes - Google Patents
Improvements in or relating to circuit arrangements for discharge lamps and tubesInfo
- Publication number
- GB563376A GB563376A GB18543A GB18543A GB563376A GB 563376 A GB563376 A GB 563376A GB 18543 A GB18543 A GB 18543A GB 18543 A GB18543 A GB 18543A GB 563376 A GB563376 A GB 563376A
- Authority
- GB
- United Kingdom
- Prior art keywords
- inductance
- tubes
- supply conductor
- tapping
- case
- 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
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
- H05B41/234—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 to eliminate stroboscopic effects, e.g. feeding two lamps with different phases
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
563,376. Supply systems for discharge lamps. FREEDMAN, P., and CROMPTON PARKINSON, Ltd. Jan. 5, 1943, No. 185. [Class 38 (iv)] Stabilization, power factor correction and minimization of flicker with fluorescent and other discharge tubes are obtained by connecting two tubes in parallel relationship with the aid of a condenser 11 and one or more inductances 10 of the kind possessing a single continuous winding. The condenser is included in series with one lamp circuit only. One supply conductor 7 is connected to one terminal of each lamp 1, 2 and the other supply conductor 8 is connected either to one end of an inductance or to a tapping on the inductance. In the first case, the remaining terminals of the individual lamp circuits are connected respectively to the other end of the inductance and to a tapping on the inductance. In the second case the lamp circuit terminals are connected respectively to each end of the inductance as shown. A further inductance may be in series with the second supply conductor. Provision may be made to vary the tapping to which the second supply conductor is connected in the second case.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB18543A GB563376A (en) | 1943-01-05 | 1943-01-05 | Improvements in or relating to circuit arrangements for discharge lamps and tubes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB18543A GB563376A (en) | 1943-01-05 | 1943-01-05 | Improvements in or relating to circuit arrangements for discharge lamps and tubes |
Publications (1)
Publication Number | Publication Date |
---|---|
GB563376A true GB563376A (en) | 1944-08-11 |
Family
ID=9699892
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB18543A Expired GB563376A (en) | 1943-01-05 | 1943-01-05 | Improvements in or relating to circuit arrangements for discharge lamps and tubes |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB563376A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1009307B (en) * | 1951-09-15 | 1957-05-29 | Philips Nv | Device with two gas and / or vapor discharge tubes connected in series with one another and with an inductance |
DE1095395B (en) * | 1954-01-26 | 1960-12-22 | Wilfried Fritzsche Dipl Ing | Arrangement for brightness control of gas discharge lamps |
-
1943
- 1943-01-05 GB GB18543A patent/GB563376A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1009307B (en) * | 1951-09-15 | 1957-05-29 | Philips Nv | Device with two gas and / or vapor discharge tubes connected in series with one another and with an inductance |
DE1095395B (en) * | 1954-01-26 | 1960-12-22 | Wilfried Fritzsche Dipl Ing | Arrangement for brightness control of gas discharge lamps |
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