Sunset light gradual control circuit

Published:2011/4/13 4:17:00 Author:Nicole | Keyword: sunset light, gradually control | From:SeekIC

Bidirectional breakdown diode D triggers three terminal TRIAC Q with a frequency, the trigger frequency is controlled by photosensitive resistance R5 and C2. As the night deepened, this circuit starts to outdoor light. To cut off K, then the bulb load turns on, it can manual control brightness, R4 decides the brightness.



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