A Class D Voltage Source Resonant Inverter for Ultrasonic Cleaning Application

Abstract

This paper presents a class D voltage source resonant inverter for the ultrasonic cleaner. The output power is controlled by varying switching frequency that depends on the load variation. The system can achieve the zero voltage switching (ZVS) throughout the inverter operation. The piezoelectric ceramic transducer (PCT) of 50 W is used to generate the vibrated effect for cleaning the ultrasonic load. The microcontroller of dsPIC30F2010 is used to generate two gate signals. The proposed method can verified by the simulated and experimental results.