Driving power for handheld ultrasonicknife based on Boost topology
                                              YU Jian, ZHAO Xiaoyong, HE Liangguo, ZHENG Wenlong
                           （College of Mechanical Engineering, Hefei University of Technology, Hefei 230009, China）
 

Abstract: Aiming at the problem of traditional handheld ultrasonic knife driving power larger volume, the basic circuit structure and driving requirements of driving power were analyzed,and a miniaturization ultrasonic knife driving power based on Boost topology was proposed.The design method of signal generating circuit, DC boost circuit and inverter circuit in the driving power ,and the choice method of the important component parameters were introduced.And the working principle and the boost characteristic of the DC boost circuit were emphatically analyzed.The influence of the leakage inductance of the coupled inductor on the output voltage gain in a DC boost circuit was analyzed.A prototype of handheld ultrasonic knife driving power was designed and manufactured, and the output voltage data of the DC boost circuit and the output waveform of the driving power were measured.The results indicate that the driving power based on Boost topology can meet the miniaturization requirements of handheld ultrasonic knife driving power.

Key words: ultrasonic knife; driven power;  Boost topology; miniaturization