单片机控制步进电机毕业论文.docx

单片机步进电机控制系统设计摘要步进电机是一种通过电脉冲信号控制相绕组电流实现定角转动的机电元件，与其他类型电机相比具有易于开环精确控制、无积累误差等优点，在众多领域中获得了广泛的应用。本文首先简单的介绍了步进电机的发展概况、特点及工作原理。包括步进电机的控制方式和驱动方式作了系统说明，给出了系统设计的总体方案，以及本系统的特点和功能。然后以AT89C2051，THB6064H单片机为主控制器，详细介绍了基于该单片机的步进电机的控制系统。在此基础上对外围电路：键盘电路、动态扫描、复位电路等各个模块的电路进行详细的设计。接着阐述了步进电机软件控制的开发的流程和程序设计。同时给出了两相混合式步进电机的正反转、速度控制的程序清单。本文采用软硬件结合的方法，达到了对步进电机的最佳控制。关键词：步进电机，单片机，THB6064HDesign of Stepper Motor Based on MCU Control SystemABSTRACTStepper motor is controlled by electrical pulse signal phase winding current to achieve fixed angle rotating electromechanical components, compared with other types of motor control with easy-to-open-loop precision, no accumulation of error of the advantages gained in many fields has been widely used.This paper describes a simple stepper motor development, characteristic, and it works. Including stepper motor control and the driver made a systematic way of explanation, given the system design of the overall program, as well as features and functionality of the system. Then the main controller AT89C2051, THB6064 microcontroller.Described in detail based on the step motor control system.On this basis for the periphery: the keyboard circuitry, the dynamic scanningReset Circuit in detail and the various modules of the circuit design. Then gives the control of stepper motor software development processes and programming. At the same time gives the six beat three-phase stepper motor rotating, and speed control of the program list. In this paper, the method of combining software and hardware to achieve the best control of the stepper motor.KEY WORDS: stepper motor ,microcontroller, THB6064H1 绪论1.1 引言历史证明，一个国家的制造业水平在很大程度上可以体现国家的实力，国家的发展也在很大程度上依赖于先进的制造业，所以大多数国家都非常重视大力发展造业，二战后，计算机控制技术、微电子技术、信息和自动化技术有了迅速的发展，并在制造业中得到了愈来愈广泛的应用，先后出现了数控(NC)、计算机数控(CNC)、柔性制造单元(FMC)、柔性制造系统(FMS)、计算机辅助设计与制造(CAD／CAM)、计算机集成制造系统(CIMS)等多项先进制造技术与制造模式，推动着世界制造业进入一个崭新的阶段。而在这些技术环节中，具有很多优点的步进电机就是一个重要角色，比如在数控技术中。步进电动机又称脉冲电动机或阶跃电动机，国外一般称为Steppingmotor、Pulse motor或Stepper servo，其应用发展已有约80年的历史。可以说步进电动机