40KHZ 50W/60W 超声波电路板电子超声波发生器 PCB，用于超声波洗碗机

The switching element control end of the circuit board of the small ultrasonic generator inputs the pulse signal, the output end is connected with the frequency control port of the phase shift control chip, and the phase shift control chip outputs the phase shift control pulse width modulation signal, which is used to control the transducer. Through this circuit, the ultrasonic power supply can track the resonance frequency of the transducer in real time and quickly adjust the output for matching, Moreover, it can effectively avoid resonance at other resonance frequency points of the transducer.