GB520834A - Improved device comprising a high-pressure discharge tube - Google Patents
Improved device comprising a high-pressure discharge tubeInfo
- Publication number
- GB520834A GB520834A GB3151538A GB3151538A GB520834A GB 520834 A GB520834 A GB 520834A GB 3151538 A GB3151538 A GB 3151538A GB 3151538 A GB3151538 A GB 3151538A GB 520834 A GB520834 A GB 520834A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discharge lamp
- magnet coil
- pressure discharge
- discharge tube
- improved device
- 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
- H05B41/231—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 high-pressure lamps
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
520,834. Supply systems for discharge lamps. MEYER. L. W. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 31, 1938, No. 31515. [Class 38 (iv)] The magnet coil 6 for centralizing the arc in a horizontally-disposed high pressure discharge lamp 1 is connected in series with a condenser 5 across the discharge lamp and its series-connected stabilizing choke 2, the magnet coil and condenser being so proportioned as to take a leading current and thus compensate for the lagging current in the discharge lamp circuit. The proportions are such that the voltage across the magnet coil amounts to less than 10 per cent. (e.g., 5 per cent.) of the voltage across the condensers.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3151538A GB520834A (en) | 1938-10-31 | 1938-10-31 | Improved device comprising a high-pressure discharge tube |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3151538A GB520834A (en) | 1938-10-31 | 1938-10-31 | Improved device comprising a high-pressure discharge tube |
Publications (1)
Publication Number | Publication Date |
---|---|
GB520834A true GB520834A (en) | 1940-05-06 |
Family
ID=10324231
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3151538A Expired GB520834A (en) | 1938-10-31 | 1938-10-31 | Improved device comprising a high-pressure discharge tube |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB520834A (en) |
-
1938
- 1938-10-31 GB GB3151538A patent/GB520834A/en not_active Expired
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