The circuit is originally a power-on delay type control circuit, and the delay time is determined by the timing elements R1 and C1. But with the "watchdog" circuit, you can use it as a monitoring circuit for some applications.
Piezoelectric Buzzer For External Drive
The piezoelectric transducers (for External Drive) produce exceptional sound output and efficiency all while meeting each customers unique performance requirements. Piezo transducers are constructed without magnets, instead they create sound mechanically via the piezoelectric effect. Our piezo transducers are not equipped with a built in drive circuit. This provides our customers with the flexibility of designing their own circuitry to meet their specific needs. The advantage of using an external drive circuit is that the piezo transducers can output sounds at multiple frequencies. Full bridge circuits ramp up SPL for more peak-to-peak voltage, making our piezo transducers a high output solution.
Piezo Alarm Buzzer,Alarm Piezo Buzzer,Fire Alarm Piezo Buzzer,Active Magnetic Buzzer
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