Electronic birthday candle circuit

Published:2011/7/26 5:35:00 Author:chopper | Keyword: Electronic, birthday candle | From:SeekIC

Electronic birthday candle includes a candle and a Happy Birthday Song. It imitates the shape of traditional birthday candles and adopts the operation mode like lighting and blowing candle, it is very interesting, the circuit is shown as picture. It consists of a 412 input end and nand-gate CD4011,and D3, D4 form the trigger RS, it uses two output states of trigger to control the lighting, blowing as well as the play and stop of the candle.



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