基于自动增益控制的超声刀具功率自适应电路  

Ultrasonic Tool Power Adaptive Circuit Based on Automatic Gain Control

作　　者：贺提喜 舒送 HE Tixi;SHU Song(School of Mechanical Engineering,North China University of Water Resources and Electric Power,Zhengzhou 450045,China;State-owned Wuhu Machinery Factory,Wuhu 241007,China)

机构地区：[1]华北水利水电大学机械学院,郑州450045 [2]国营芜湖机械厂,安徽芜湖241007

出　　处：《机械工程师》2020年第6期45-46,49,共3页Mechanical Engineer

摘　　要：介绍一种夹心式超声刀驱动电路。在实现自动频率追频功能的基础上,加入自动增益控制电路达到恒流驱动和功率自适应的功能,最大程度地保证换能器工作效率的要求。设计了自动增益控制电路和整个驱动电路,并通过实验进行了测试验证。This paper introduces a sandwich ultrasonic tool drive circuit.On the basis of the automatic frequency tracking function,an automatic gain control circuit is added to achieve the functions of constant current drive and power adaptation,thereby ensuring the requirements of the working efficiency of the transducer.The automatic gain control circuit and the entire driving circuit are designed,and the circuit is verified through experimental tests.

关 键 词：夹心式换能器 超声刀具 自动增益控制(AGC) 

分 类 号：TM710.2[电气工程—电力系统及自动化]