单片机在超声波恒功率控制中的应用  

Application of Single-Chip Microcomputer to Ultrasonic Constant Power Controlling

作　　者：潘明[1] 梁维铭[1] 

机构地区：[1]桂林电子工业学院计算机系,广西桂林541004

出　　处：《三峡大学学报（自然科学版）》2002年第6期520-522,共3页Journal of China Three Gorges University：Natural Sciences

摘　　要：介绍一种单片计算机控制的恒功率控制超声波焊接加工电路 在原恒压输出电路基础上 ,增加单片计算机控制的恒功率控制电路 ,实时检测输出功率 ,调节控制压控放大器增益 ,控制电路的输出电压 ,实现输出超声波功率保持恒定 消除由于焊接点表面阻抗不稳定对焊接质量的影响 采用偏差算法 ,控制响应快速 。An ultrasonic welding circuit with constant power controlling by a single chip microcomputer,is described Based on the original constant voltage output circuit,a single chip microcomputer is adopted to control the constant power control circuit,real time to monitor the output power,to regulate and control voltage control amplifier's gain,to control the output voltage,to realize output ultrasonic power with constant ,so as to eliminate the influence of unsteady impedance,which is in the welding point surface,on the welding quality.The deviation algorithm is adopted;and it has fast control response rate and well effectiveness

关 键 词：单片机 超声波 恒功率 控制 压控放大器 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]