基于PIC16F873单片机的步进电机控制系统  

Stepping Motor Control System Based on PIC16F873 MCU

作　　者：黄法[1] 孔秀华[2] 

机构地区：[1]威海职业学院职业技能实训中心,山东威海264210 [2]山东交通学院,山东威海264200

出　　处：《现代电子技术》2009年第12期175-178,共4页Modern Electronics Technique

摘　　要：单片机控制步进电机具有功能灵活多样,脉冲输出准确,实时性强等特点,已被越来越广泛地应用在各种不同的运动控制系统中。该设计使用PIC16F873单片机,可以通过键盘输入数据与指令,并能通过旋钮方便地实现电机的连续调速,实时设置与显示步进电机的工作方式。采用一种升降速曲线的优化方法,解决步进电机在升降速过程中脉冲频率的变化不合理,使系统无法做到精确定位的问题;优化步进电机的驱动电路,采用硬件、软件抗干扰技术措施,使整个系统工作稳定可靠。Stepping motor controlled by single chip computer is applied widely in various motion control system because of the characteristics of flexible function,accurate outputting pluse and strong real - time etc. PIC16F873 is used in the design, stepping motor speed can be changed by data and instructions entered through the keyboard and can be continuously changed by rotating button,working mode and setting of motor is real - time displayed. The variation of unreasonable pulse frequency causes the matter that system can not realize accurate location in the course of rise and fall - speed of stepping motor. The matter is solved by adopting an optimized method. Driving circuit of stepping motor is optimized,anti - interference technique is adopted in software and hardware. The whole system runs stably and reliably.

关 键 词：PIC16F873 ZLG7289A 升降速曲线的优化 抗干扰技术 控制系统 

分 类 号：TM383.6[电气工程—电机] TP368.1[自动化与计算机技术—计算机系统结构]