The controller of industrial Ultrasonic cleaning must meet the requirements of stable Dead time, adjustable and stable frequency, and gap excitation. The voltage driven pulse width modulation control chip TL494CN is used, which generates square wave frequencies that are continuously adjustable in the range of 28-40kHz. The frequency adjustable pulse signal generated is modulated to form a square wave signal with gaps, which is used to control the driving circuit of the power device IGBT.

Multi Frequency Ultrasonic Cleaning Generator Power Supply Ultrasonic Generator