An efficient inverter circuit design for driving the ultrasonic welding transducer

摘要

This paper describes a robust circuit design using matching technology to drive the ultrasonic welding transducer with zero voltage switching. A new feedback control method to track the optimal working frequency was practically implemented by a FPGA chip. All analytic results exhibited that the newly designed class-E inverter circuit can be effectively and stably applied on the high power ultrasound welding system.