Fig. 1: Image showing External Features of a Piezo Buzzer.
Fig. 2: Image showing External Features of a Piezo Buzzer.
Lets get to know about the working of the project. The voltage drop across resistors R1(10k) and R2 (150k) is provided to the piezoelectric diaphragm. Due to the applied potential, the diaphragm starts vibrating. These vibrations are fed to the base of a transistor T1 (BC547). T1 acts as an amplifier to amplify these vibrations and the output appears across the collector resistor R3 (100).
Filed Under: Electronic Projects