Electric circuit control system using logic device

Details Electric circuit control system using logic device Electric circuit control system using logic device

1976-12-08

1978-05-16

Smith, Alfred E.

Electric lamp and discharge devices: systems

With radiant energy sensitive control means

Radiant energy control of an electric discharge device in...

307114, 315361, 315159, 315208, 315272, 307252B, 307252T, 307293, 307311, H05B 3702, H05B 3904

Patent

active

040901076

ABSTRACT:
A circuit is disclosed which is suitable for controlling lighting in a building from a multiple number of points. AC current to light bulbs is controlled by a triac which in turn is controlled by the output of an optical coupler which is controlled by the output of a logic device. The output of said logic device is connected to control the input to the triac. Switches connecting to the input of the logic device each can independently determine energization or deenergization of the light bulbs.

REFERENCES:
patent: 2510713 (1950-06-01), Olsson
patent: 3418489 (1968-12-01), Platzer, Jr.
patent: 3932770 (1976-01-01), Fantozzi
patent: 4011482 (1977-03-01), Seib
Electronic Design, vol. 20, Sept. 27, 1970, p. 69, A. J. Duelm, "Remote Control of a Triac Is Made Easy by Using One IC".

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