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Lesound controlled running water lamp circuit
Source: InternetPublisher:拳制龙 Keywords: Voice control running water lamp Updated: 2020/08/11
Circuit working principle: This control of running lights using music sound consists of two integrated chips, 741
( IC 1) and CTC1403 (IC2). Among them, op amp 741 is connected
as an audio preamplifier. The sound signal is detected by the condenser microphone, amplified by IC 1 and sent
to CTC1403. CTC1403 is a 9-pin chip in a single in-line package,
used as an audio level indicator in the circuit
. The five outputs of Ic2 are sent to the power transistors VT1 to
VT5 through resistors to drive five light bulbs.
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