Illumination Controller (22)

Published:2011/7/6 6:27:00 Author:Sue | Keyword: Illumination, Controller | From:SeekIC

After the oscillator begins to work, IC1's pin 3 will output clock pulse signals. After the clock pulse signals are frequency divided by frequency divider, IC2's 4 terminals (pin 1, pin 2, pin 14, pin 15) will output control signals which will make AND GATE circuits D1-D4 output high level circularly. When oneAND GATE circuit outputs high level, the tryristor which is conected to its output terminal will be connected. The relay is connected. Its normally open trigger will make the ac power connected. For example, when D1 outputs high level, V1 will be connected which will make K1 connected. The illuminations controlled by K1's normally open trigger will be illuminated.



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