Four-color advertising light box with songs sound control circuit

Published:2012/9/9 22:47:00 Author:Ecco | Keyword: Four-color, advertising light box , songs sound control | From:SeekIC

The circuit is shown as the figure. It is composed of time-base oscillator circuit, pulse count / distribution circuit, relay control circuit, songs sound circuit and AC buck rectifier circuit and other components. The circuit is used for advertisements, while it automatically transforms luminous color, it also issues a melodious music , it can not only beautify the night scene,but increaseadvertising effect . F1, F2, F3are the gate circuits ofa four- 2 NAND gate integrated circuit CD4011, where F1, F2 , and R1 , R2, and RP1, C1 form a multivibrator with oscillation frequency: The oscillation period of the icon parameter is 44 ~ 92s, regulation RP1 can change its oscillation cycle TO.



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