LED Festival Illumination Controller (4)

Published:2011/7/8 7:05:00 Author:Sue | Keyword: LED, Illumination, Controller | From:SeekIC

After the autoexciting oscillator begins to work, it will provide IC3 with count pulse. Under the effect of the count pulse, its Y0-Y9 terminals will output high level in turn which will make V1-V10 connected in turn. These LEDs will be drived to be illuminated in turn. After IC3 is reset, its Y0 terminal will output high level which will make V1 connected. VL1-VM will be illuminated. When its Y1 terminal outputs high level, V2 is connected. VL5-VL8 are illuminated(Y0 terminal return to low level; V1 is disconnected and VL1-VM are off)......When Y8 terminal outputs high level, V9 is connected. VL33-VL36 are illuminated. When Y9 terminal outputs high level, V10 is connected. VL32-VL40 are illuminated. Then different illumination effects can be generated.



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/Control_Circuit/LED_Festival_Illumination_Controller_4.html

Print this Page | Comments | Reading(3)