In this video, we will describe the most simple circuit to drive an AC waveform at ultrasonic frequencies to a piezoelectric element. The essential components of this circuit are a resistor and a MOSFET used as a charge draining switch.You will need a signal source; I used a function generator, but an Arduino will work just fine.

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Circuit Theory [0:00]
Experimental transducer characterization [12:00]
Breadboard circuit [21:00]
Experimental operation of drive circuit [25:10]
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Video links
High frequency signal for ultrasonic transducer from Arduino:    • High frequency signal for ultrasonic ...  
Basic driving principles of a piezoelectric actuator/transducer:    • Basic driving principles of a piezoel...  
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