GARAGE_LIGHT_CONTROL

Published:2009/7/6 6:09:00 Author:May | From:SeekIC

When mounted on far wall in garage, controller picks up head-light beams as car is driven in at night and turns light. on one or more garage lights long enough (3 min) for driver to get out of car and reach exit. Controller then flickers lights as warning and begins dimming them out. With parts specified, will handle up to 800 W of lamps. Adjust sensitivity control R1 so lighe in optocoupler CPL comes on when headlights strike light-operated SCR. Controller must be kept out of direct sunlight. For manual control, connect, connect pushbutton switch between points A and B. To increase time delay, increase value of C2. With 20μF, time will be doubled.-C. R. Lewart, Automatic Garage Light Control, Popular Science, July 1973, p 110.



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