2600W High Power Automatic Frequency Tracking Ultrasonic Welding Generator For Ultrasonic Welding Machine

The power generator of the ultrasonic plastic welding machine adopts a full bridge phase shift control strategy to control the output power. Based on the circuit design, a prototype with a power of 2 kW and a switching frequency of (20 ± 0.5) kHz has been developed. The experimental results show that the power supply can achieve automatic resonance frequency tracking and output power control, and the feasibility and correctness of the circuit design have been verified