GB463877A - Improvements in and relating to circuits including electric discharge devices - Google Patents
Improvements in and relating to circuits including electric discharge devicesInfo
- Publication number
- GB463877A GB463877A GB2778235A GB2778235A GB463877A GB 463877 A GB463877 A GB 463877A GB 2778235 A GB2778235 A GB 2778235A GB 2778235 A GB2778235 A GB 2778235A GB 463877 A GB463877 A GB 463877A
- Authority
- GB
- United Kingdom
- Prior art keywords
- condenser
- supply
- choke
- parallel
- relating
- 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
- H05B41/36—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
463,877. Supply systems for discharge lamps. BRITISH THOMSON-HOUSTON CO., Ltd., MITCHELL, J. H., and SCOTT, W. J. Oct. 8, 1935, No. 27782. [Class 38 (iv)] An arrangement for reducing the supply to a luminous discharge lamp 2 including a choke 1 in series in the supply circuit and a condenser 3 across the supply for power factor correction comprises switching means for connecting a condenser in parallel with the choke to increase the impedance of the combination. In the form shown, the -condenser 3 normally in parallel with the supply is connected across the choke. In a modification a separate condenser is connected in parallel by a switch. In other modifications of this, the switch is arranged to connect the condenser 3 in series or in parallel with a further condenser across the choke. Specifications 428,084 and 448,783, [both in Group XL], are referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2778235A GB463877A (en) | 1935-10-08 | 1935-10-08 | Improvements in and relating to circuits including electric discharge devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2778235A GB463877A (en) | 1935-10-08 | 1935-10-08 | Improvements in and relating to circuits including electric discharge devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB463877A true GB463877A (en) | 1937-04-08 |
Family
ID=10265209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2778235A Expired GB463877A (en) | 1935-10-08 | 1935-10-08 | Improvements in and relating to circuits including electric discharge devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB463877A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010009894A1 (en) * | 2008-07-25 | 2010-01-28 | Koennecke Tilo | Circuit arrangement and method for controlling the power consumption of illumination systems having an alternating current supply |
-
1935
- 1935-10-08 GB GB2778235A patent/GB463877A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010009894A1 (en) * | 2008-07-25 | 2010-01-28 | Koennecke Tilo | Circuit arrangement and method for controlling the power consumption of illumination systems having an alternating current supply |
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