Multi-color advertising light box with music audible circuit ( 2 )

Published:2012/9/5 22:03:00 Author:Ecco | Keyword: Multi-color, advertising light box , music audible circuit | From:SeekIC

As shown in the figure, it consists of time-base pulse oscillator, counting / pulse distribution circuit, SCR drive lamp circuit and AC buck rectifier circuit. It enables advertising light box to make multi-color changes with red, green and blue, also accompanied by melodious songs play in order to attract more pedestrians and tourists. F1, F2, F3 are three gates of the six NOT gate integrated circuit CD4069; F1, F2, R2 and C3, etc. form a self-excited multivibrator and its oscillation frequency is: The oscillation frequency of the icon parameteris 0.088 ~ 0.97Hz ( corresponding periodis about 1 to 11.4s ).



Reprinted Url Of This Article:
http://www.seekic.com/circuit_diagram/LED_and_Light_Circuit/Multi_color_advertising_light_box_with_music_audible_circuit__2_.html

Print this Page | Comments | Reading(3)