JIANG Xinggang, ZHU Xianbin, ZHANG Deyuan*
(School of Mechanical Engineering and Automation, Beihang University, Beijing 100191, China;Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100083, China)
Abstract:
The basic structure of ultrasonic power supply is introduced. The development of ultrasonic power supply is reviewed by the aspect of hardware used in it.Several structures and technologies of control are analyzed both from advantages and disadvantages, aimed to provide design guidelines for ultrasonic power design and performance improvement. The key technologies of automatic frequency tracking, auto power regulation and impedance matching in ultrasonic machining power system are analyzed emphatically, including the implementation and evaluation.The development trend of ultrasonic machining power supply is pointed out, combined with the research status and demand of ultrasonic machining technology.
KeyWords:
ultrasonic power supply; frequency tracking; auto power regulation; impedance matching
