Solenoid water valve automatic control circuit
Source: InternetPublisher:傻阿乐 Keywords: Electromagnetic automatic control circuit oscillator Updated: 2021/10/12
Circuit working principle: power transformer T, VD. A VD. and C. Makes up
the 12 V power supply circuit for the entire device. A, y, and C are the three detection electrodes in the pool. Ic, and
IC 2 are two 555 time base integrated circuits. Among them, Ic, R, R2 and cz form a multivibrator .
Its pin 3 outputs a low voltage with a pulse width of only about 0 1 s every 50 s.
flat pulse. IC 2, R4, and C3 form a monostable trigger with a delay of about 70 s.
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