基于FPGA和LMD18200的步进电机控制系统  

Stepper motor control system based on FPGA and LMD18200

作　　者：杜维康 王景存[1] DU Weikang;WANG Jingcun(School of Information Science and Engineering,Wuhan University of Science and Technology,Wuhan 430081,China)

机构地区：[1]武汉科技大学信息科学与工程学院,湖北武汉430081

出　　处：《现代电子技术》2018年第13期142-146,共5页Modern Electronics Technique

摘　　要：实现了一种基于FPGA和LMD18200的步进电机闭环控制系统,给出控制步进电机的设计方法,结合MCU,FPGA和增量型编码器构成了一个完整的运动控制平台。该系统由总线接口单元、闭环控制单元、PWM脉宽调制单元和LMD18200驱动单元组成。实践表明,利用LMD18200驱动逻辑能够使步进电机高效稳定地运行,有效降低了电机运行中的噪音和启动、停止时的震动,使用效果好于大部分常规步进电机驱动方法。An FPGA and LMD18200 based closed-loop control system of stepping motor was implemented in this paper.The design method to control the stepping motor is given. The MCU,FPGA and incremental encoder are combined to form a whole motion control platform. The system is composed of bus interface unit,closed-loop control unit,pulse width modulation（PWM） unit and LMD18200 driving unit. The experimental results show that the driving logic of LMD18200 can make the stepper motor run stably and efficiently,effectively reduce the noise during the motor operation and vibration during start and stop,and the control effect of the method is better than that of most conventional stepping motor ′s driving methods.

关 键 词：FPGA 步进电机 LMD18200 闭环控制 编码器 驱动控制 

分 类 号：TM383.6[电气工程—电机]