Ultrasonic generator is also called as ultrasonic electricity box, ultrasonic sources, ultrasonic power supply,etc. And its function is to convert (220 V or 380 V, 50 or 60 Hz)  to match high-frequency ac electric signal.From the amplifier circuit form, can use linear amplifier circuit and switch power supply circuit, high-power ultrasonic power from the conversion efficiency into consideration general use of switch power supply circuit form. Linear power supply also has its own application scope, its advantage is that it can not strictly required circuit matching, allowed to work fast frequency changes.Ultrasonic generation is mainly divided into auto-excitation type and type of it-excitation.