60W/120W Ultrasonic Cleaning Generator Pcb Driver Circuit Board For Cleaner Machine

The small ultrasonic generator circuit board provides an adaptive tracking circuit for the resonance frequency of the ultrasonic generator, including a phase locked loop unit, a phase shift control chip and a frequency control circuit. The phase shift control chip outputs a pulse signal, which is processed by the phase comparator II in the phase locked loop unit to output a pulse signal, and the pulse signal is output to the frequency control circuit through the phase locked loop unit; The frequency control circuit includes a switching element.