【精品】基于单片机的步进电机控制 毕业论文47.doc

摘 要 步进电机是一种纯粹的数字控制电机，是将电脉冲信号转变为角位移或线位移的开环控制元件。 本文应用单片机AT89C51，步进电机驱动器，光电隔离器等，构建了步进电机控制器和驱动器为一体的步进电机控制系统。通过AT89C51和脉冲分配器PMM8713完成步进电机的各种运行控制方式，实现步进电机在相拍的工作方式下的正反转控制和加减速控制。整个系统采用模块化设计，结构简单，可靠，通过人机交互换接口可实现各功能设置，操作简单，易于掌握。该系统可应用于步进电机控制大多数场合。 实践证明基于单片机控制的步进电机比传统的步进控制器具有更好的性能，更加简单、方便、可靠。本设计的主要研究对象就是开环伺服系统中最常用的执行器件——步进电机。 关键词: 步进电机单片机正反转控制加减速控制 Abstract The stepper motor is a pure digital control motors, electrical pulses into angular displacement or linear displacement of the open-loop control components. In this paper, AT89C51 and level converter MAX232, stepper motor drives, optical isolator TPL521-1, etc., to build a stepper motor controller and driver as one of the stepper motor control system.AT89C51 and pulse distributor PMM8713 to complete a variety of operational control stepper motor, Reversible control of the stepper motor 3-phase 6 shot works and deceleration control The entire system is modular in design, simple structure, reliable, and can be achieved through human-computer interaction to change the interface settings, simple to operate, easy to grasp. The system can be applied to the stepper motor in mechatronics control the majority of occasions Stepper motor due to its open-loop system consisting of both a simple, inexpensive, and very feasible, and therefore has a very wide range of applications in many areas of printers and other office automation equipment and a variety of control devices.Practice has proved that, based on the microprocessor controlled stepper motor has better performance than conventional stepper controller, more simple, convenient and reliable.The main object of study of this design is open-loop servo system is the most commonly used actuator - stepping motor. Keywords: stepper motor； microcontroller； positive control； acceleration and deceleration control 目录 摘 要 I Abstract II 1 绪论 1 1.1步进电机及其发展 1 1.2课题研究的目的和意义 1 1.3 步进电机在我国的发展应用及前景 2 1.4 本文研究内容 3 2 步进电机的分类、结构、工作原理及特性 4 2.1 步进电机的概念 4 2.2 步进电机的特点 4 2.3 步进电机的分类 5 2.4