Christmas light circuit

Posted on Feb 4, 2014

The chart shows the Christmas lights circuit which uses simple, inexpensive CD4069 CMOS hex inverter to control four circuits with 200 light-emitting diodes (each circuit has 50 LEDs), and it is directly supplied by the 220V power source without power transformer. The power is bridge rectified by VD1 ~ VD4, differential pressured by R1, R5 and filtered by C1..

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