GB828784A - Improvements in or relating to circuit arrangements for operating electric lamps - Google Patents
Improvements in or relating to circuit arrangements for operating electric lampsInfo
- Publication number
- GB828784A GB828784A GB2729657A GB2729657A GB828784A GB 828784 A GB828784 A GB 828784A GB 2729657 A GB2729657 A GB 2729657A GB 2729657 A GB2729657 A GB 2729657A GB 828784 A GB828784 A GB 828784A
- Authority
- GB
- United Kingdom
- Prior art keywords
- relating
- circuit arrangements
- electric lamps
- operating electric
- aug
- 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
- H05B39/00—Circuit arrangements or apparatus for operating incandescent light sources
- H05B39/04—Controlling
- H05B39/08—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices
- H05B39/083—Controlling by shifting phase of trigger voltage applied to gas-filled controlling tubes also in controlled semiconductor devices by the variation-rate of light intensity
Landscapes
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
828,784. Dimming lamps. GENERAL ELECTRIC. CO. Ltd. Aug. 13, 1958 [Aug. 29, 1957], No. 27296/57. Drawings to Specification. Class 38 (4). The subject-matter is the same as that of Specification 828,783, but the claims differ.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2729657A GB828784A (en) | 1957-08-29 | 1957-08-29 | Improvements in or relating to circuit arrangements for operating electric lamps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2729657A GB828784A (en) | 1957-08-29 | 1957-08-29 | Improvements in or relating to circuit arrangements for operating electric lamps |
Publications (1)
Publication Number | Publication Date |
---|---|
GB828784A true GB828784A (en) | 1960-02-24 |
Family
ID=10257274
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2729657A Expired GB828784A (en) | 1957-08-29 | 1957-08-29 | Improvements in or relating to circuit arrangements for operating electric lamps |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB828784A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4057751A (en) * | 1975-10-14 | 1977-11-08 | Cbs Inc. | Controlled dimmer lighting system |
-
1957
- 1957-08-29 GB GB2729657A patent/GB828784A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4057751A (en) * | 1975-10-14 | 1977-11-08 | Cbs Inc. | Controlled dimmer lighting system |
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