Electric lamp and discharge devices: systems – With radiant energy sensitive control means – Load device irradiating the radiant energy responsive device
Patent
1994-10-25
1996-09-03
Pascal, Robert
Electric lamp and discharge devices: systems
With radiant energy sensitive control means
Load device irradiating the radiant energy responsive device
315158, 315307, 250206, H05B 3702
Patent
active
055526764
ABSTRACT:
The invention relates to a control device for an appliance consuming electric power, especially for the control of lighting or heating. The control element includes a sensor element (V8) for producing a control current or voltage as a result of a light or heat flux received thereby. An amplifier element (V4-V1) boosts the control current of said sensor element (V8) to a sufficient level for controlling one or a plurality of electronic ballasts, which is e.g. a current limiter for a discharge lamp, a regulator for a filament lamp or a heating effect regulator. The electric power required by the amplifier element (V4-V1) of the control device is supplied from said ballast by means of conductors, which also serve as a control line between the control device and the ballast.
REFERENCES:
patent: 3633093 (1972-01-01), Templeton
patent: 5038079 (1991-08-01), Szuba
OY Helvar
Pascal Robert
Shingleton Michael B.
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