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Ultrasonic transmitter circuit b composed of UCM-40-T and 74LS00 NAND gate
Source: InternetPublisher:已注销 Keywords: NAND gate ultrasonic transmitter circuit 74LS00 oscillation Updated: 2020/10/25
The circuit consists of ultrasonic transmitter T-4 0-16 and 555 circuit. Adjusting the potentiometer RP can change the oscillation
frequency of the circuit. The 40k}renz oscillation pulse output from pin 3 of the 555 drives the T-4 0-16 to work, causing it to emit a 40kHz ultrasonic signal. The working voltage of the circuit
is 9V. The working current is 40~45mA, and the control distance is greater than 8m.
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