kitchen timer circuit
Source: InternetPublisher:ohahaha Keywords: timer circuit kitchen timer Updated: 2021/10/15
Shown is a typical timing prompt circuit. The main body of the circuit is an ICl CD4518 counter circuit with a built-in oscillation circuit.
After the power is turned on, IC1 is reset and the counter starts to work. After a certain counting cycle of the power switch (64 cycles), Q7-Q10 terminals
successively output high level . When Q7-Qro are both at high level , the timing time is up, VTI is turned on, and the buzzer sounds to indicate the time.
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