Voice-activated music coloured light circuit (2)

Published:2012/8/29 22:54:00 Author:Ecco | Keyword: Voice-activated , music , coloured light | From:SeekIC

As shown in the figure, it is a modified voice-activated music coloured light. (1) It uses bridge full wave circuit, and the current flowing through Lantern series is full wave pulsating current, so the brightness of Lantern series is improved; (2) It uses LED1 and LED2 for power supply, and it can get stable DC voltage from two ends of LED, while LED also can be used for power indicator; (3) The sound-electric transducer uses electret capacitance microphone to effectively improve Sonic controlling sensitivity.



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