Driver circuit schematic for a 40kHz/60W ultrasonic transducer

[amp_architect]

Hi all, I am making a DIY probe type ultrasonicator which I will be using for food samples. I will be attaching the transducer to a metal probe and I will need a driver circuit to excite it. I was thinking of either using a PWM signal (through a arduino) or a sine wave (sine wave generator circuits). I figured out using a square wave would be counterintuitive for my purpose as it would generate harmonics. Is there any preexisting circuit/schematic that would match my purpose? Thank You!

[MariuszD]

Applying a square wave to a transducer is a bad idea, but a square wave is easy to generate. In practical implementations, a square wave is applied to an LC circuit consisting of a transformer and a transducer. The LC circuit must be tuned to the transducer's resonance. There's only a sine wave on the transducer.

Example of an ultrasonic cleaner diagram.
https://www.edn.com/teardown-reverse-engineering-an-ultrasonic-cleaner/

For amateur experiments, it's better to build a low-voltage push-pull circuit.