Electric circuit control system using exclusive "or" gate

Details Electric circuit control system using exclusive "or" gate Electric circuit control system using exclusive "or" gate

1975-08-28

1977-03-08

LaRoche, Eugene R.

Electric lamp and discharge devices: systems

Plural control stations

307115, 307252B, 315362, 307216, H05B 3702, H05B 3906

Patent

active

040114821

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 a series of exclusive OR gates. The output of each exclusive OR gate is connected to one input of an adjacent exclusive OR gate except that the output of the last exclusive OR gate of the series is connected to control the input to the triac. Switches connecting to the remaining inputs of each of the exclusive OR gates each can independently determine energization or de-energization of the light bulbs.

REFERENCES:
patent: 3418489 (1968-12-01), Platzer, Jr.
patent: 3646365 (1972-02-01), Thorsoe et al.
patent: 3825153 (1974-07-01), Patrick et al.
patent: 3913023 (1975-10-01), Dolch

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