GB681452A - Apparatus for operating electric discharge lamps in series - Google Patents
Apparatus for operating electric discharge lamps in seriesInfo
- Publication number
- GB681452A GB681452A GB750450A GB750450A GB681452A GB 681452 A GB681452 A GB 681452A GB 750450 A GB750450 A GB 750450A GB 750450 A GB750450 A GB 750450A GB 681452 A GB681452 A GB 681452A
- Authority
- GB
- United Kingdom
- Prior art keywords
- series
- switch
- lamps
- discharge lamps
- transformer
- 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
- H05B41/02—Details
- H05B41/04—Starting switches
Landscapes
- Circuit Arrangements For Discharge Lamps (AREA)
Abstract
681,452. Supply systems for space discharge lamps; series systems. SYLVANIA ELECTRIC PRODUCTS, Inc. March 24, 1950, No. 7504/50. Addition to 633,448. Class 38 (iv). The circuit arrangement for obtaining simultaneous starting of a pair of series-connected discharge lamps, having filamentary electrodes, from a single starting switch, as described in the parent Specification, is modified to permit three or more series-connected lamps to be started with the same switch by connecting each pair of filaments at the lamp junctions to its own secondary winding 16 or 17 on either the single heating transformer or a separate heating transformer having its primary in series with the switch and other transformer primary, which series circuit is in shunt with the discharge paths of the lamps. Condensers 19 shunt the transformer primary windings 12, 13 which are in circuit with the bimetallic switch 20. Reference has been directed by the Comptroller to Specification 589,571.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB750450A GB681452A (en) | 1950-03-24 | 1950-03-24 | Apparatus for operating electric discharge lamps in series |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB750450A GB681452A (en) | 1950-03-24 | 1950-03-24 | Apparatus for operating electric discharge lamps in series |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB681452A true GB681452A (en) | 1952-10-22 |
Family
ID=9834384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB750450A Expired GB681452A (en) | 1950-03-24 | 1950-03-24 | Apparatus for operating electric discharge lamps in series |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB681452A (en) |
-
1950
- 1950-03-24 GB GB750450A patent/GB681452A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB681452A (en) | Apparatus for operating electric discharge lamps in series | |
| GB897828A (en) | A fluorescent lamp operating circuit | |
| GB848548A (en) | Starting circuit for electric discharge lamps | |
| GB739045A (en) | Improvements in dimming circuits for electric discharge lamps | |
| GB674249A (en) | Improvements in or relating to discharge lamp circuits | |
| GB589571A (en) | Improvements in and relating to circuits for electric discharge lamps | |
| GB639441A (en) | Improvements in circuit arrangements for electric gas discharge lamps | |
| GB639295A (en) | Improvements in supply circuits for electric discharge tubes | |
| GB667764A (en) | Means for operating gas-discharge lamps from a low-voltage source of direct current | |
| GB720264A (en) | Improvements in operating circuits for electric discharge lamps | |
| GB691902A (en) | Improvements in supply circuits for electric discharge tubes | |
| GB602858A (en) | Improvements in and relating to circuits for electric discharge lamps | |
| GB782854A (en) | Improvements in and relating to electric discharge tube circuits | |
| GB659921A (en) | Improvements in or relating to starting and operating a plurality of serially connected discharge lamps | |
| GB739042A (en) | Improvements in operating circuit arrangements for electric discharge lamps | |
| GB680362A (en) | Improvements relating to the operation of electric discharge lamps | |
| GB776596A (en) | Glow type thermal switch | |
| GB696082A (en) | Improvements in or relating to electric discharge apparatus | |
| GB669655A (en) | Improvements in or relating to means for operating electric discharge lamps | |
| GB419173A (en) | An improved switching arrangement for lighting installations | |
| GB623352A (en) | Improvements in and relating to circuits for starting and operating electric discharge lamps | |
| GB631730A (en) | Improvements in and relating to circuits for a plurality of electric discharge lamps | |
| GB643445A (en) | Improvements in and relating to arc lamps and circuits therefor | |
| GB587660A (en) | Circuit arrangements for electric discharge lamps | |
| GB633448A (en) | Apparatus for operating electric discharge lamps in series |