GB1019305A - Circuit arrangement for flashing warning lights - Google Patents
Circuit arrangement for flashing warning lightsInfo
- Publication number
- GB1019305A GB1019305A GB3493263A GB3493263A GB1019305A GB 1019305 A GB1019305 A GB 1019305A GB 3493263 A GB3493263 A GB 3493263A GB 3493263 A GB3493263 A GB 3493263A GB 1019305 A GB1019305 A GB 1019305A
- Authority
- GB
- United Kingdom
- Prior art keywords
- transistor
- capacitor
- kulenkumpff
- circuit arrangement
- flashing
- 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
- H05B39/09—Circuit arrangements or apparatus for operating incandescent light sources in which the lamp is fed by pulses
Landscapes
- Lighting Device Outwards From Vehicle And Optical Signal (AREA)
Abstract
1,019,305. Visual signalling apparatus. K. JANONSKY, F. W. KULENKUMPFF, and E. KULENKUMPFF, [trading as KULENKUMPFF & CO.]. Sept. 4, 1963 [March 29, 1963], No. 34932/63. Heading G4F. [Also in Division H3] A circuit arrangement for flashing a warning light R4 comprises two transistors arranged to charge and discharge a capacitor, the charge or discharge path of the capacitor including the lamp. Transistor T1 conducts until capacitor C becomes charged through the base emitter path of transistor T1 and the lamp R4, reducing the base current sufficiently for T1 to cut off. The change in its collector potential switches transistor T2 on so that capacitor C discharges and charges in the reverse direction through the collector-emitter path of transistor T2 and resistor R3. This causes the base of transistor T1 to go negative until the transistor T1 again conducts and the cycle repeats. The arrangement may be used for flashing a warning light on a vehicle.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK0049329 | 1963-03-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1019305A true GB1019305A (en) | 1966-02-02 |
Family
ID=7225223
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3493263A Expired GB1019305A (en) | 1963-03-29 | 1963-09-04 | Circuit arrangement for flashing warning lights |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1019305A (en) |
-
1963
- 1963-09-04 GB GB3493263A patent/GB1019305A/en not_active Expired
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