基于单片机的伺服电机控制系统设计  

Research on control system of serve motor based on single-chip microcomputer

作　　者：白涛[1] 吴振 陈若谜 

机构地区：[1]哈尔滨工程大学自动化学院,黑龙江哈尔滨150001

出　　处：《微型机与应用》2015年第24期1-3,7,共4页Microcomputer & Its Applications

摘　　要：通过对BE系列伺服电机工作原理的分析,利用STC89C52单片机设计了一种电机控制器。通过单片机I/O口向TLC5618数模转换芯片发送数据,输出电压信号经运放加法电路放大控制转速。运放输出末端放置一双刀双掷继电器,驱动芯片为ULN2003,改变输出电压正负极性可实现转向控制,并通过USB转串口与上位机通信。最后,将驱动器反馈的方波信号频率、转速和转向显示在液晶屏上。该设计可以实现伺服电机的平稳控制和精确调速,能够满足工业现场的需要。In this paper, a motor controller is designed by using STC89C52 single-chip microcomputer through the analysis of the working principle of the BE series servo motor. Data is transmited to TLC5618 analog-to-digital converter through I/O port of the single-chip microcontroller. And output voltage is amplified by op-amp addition circuit to adding control speed. There is a double pole double throw relay placed at the end of the operational amplifier output, and the drive chip is ULN2003. By changing the positive and negative polarity of the output voltage, the motor controller can realize steering control. It also can communicate to upper conputer through the serial port of the USB. At last, the signal frequency of the square wave, rotate speed and turn of the feedback of the driver are displayed on the LCD screen. This design can realize the servo motor stable control and precise speed control. The motor controller can meet the needs of the industrial scene.

关 键 词：单片机 伺服电机 转向控制 精确调速 

分 类 号：TP23[自动化与计算机技术—检测技术与自动化装置]