Illumination Controller (11)

Published:2011/7/5 6:29:00 Author:Sue | Keyword: Illumination, Controller | From:SeekIC

After the clock oscillator begins to work, IC1's pin 9 will output low-frequency oscillate signals as IC2's count pulse. Then IC2 begins to count and Y0-Y3 will output high level one by one which will make V1-V3 and VT1-VT3 connected in turn. Then the 3rd illuminations are illuminated in turn. The circuit is a low-frequency oscillator. After it begins to work, IC1's pin 5 will output low-frequency pulse signals. When IC1's pin 5 outputs positive pulse, K is connected and K1's,K2's normally open contactors are connected while normally closed contactors are disconnected. When IC1's pin 5 outputs negative pulse, K is released. K1's and K2's nomally closed contactors are connected and nomally open contactors are disconnected.



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