目 录
摘 要 .........................................................................................................................................I
Abstract ......................................................................................................................................II
目 录.......................................................................................................................................III
第一章 概述...............................................................................................................................1
1.1 开发背景及发展趋势..................................................................................................1
1.2 功能要求及功能实现概述..........................................................................................2
第二章 系统结构的实现与步进电机的驱动...........................................................................3
2.1 整体硬件结构...............................................................................................................3
2.2 系统硬件电路设计.......................................................................................................3
2.2.1 硬件的基本组成................................................................................................3
2.2.2 电路图................................................................................................................3
2.2.2.1 晶振电路.................................................................................................4
2.2.2.2 光电隔离器.............................................................................................5
2.2.2.3 MAX232 的介绍 ....................................................................................6
2.2.3 PCB 板的生成...................................................................................................6
2.3 步进电机的结构特点...................................................................................................7
2.3.1 反应式步进电机的结构....................................................................................7
2.3.2 反应式步进电机的工作原理...........................................................................8
2.3.3 反应式步进电机的步进方式...........................................................................9
2.3.4 步进电动机的主要性能指标.........................................................................10
2.3.5 步进电动机的运行特性..................................................................................11
2.3.6 步进电机的选型..............................................................................................13
2.4 步进电机驱动电路.....................................................................................................14
2.4.1 单电压驱动......................................................................................................14
2.4.2 双电压驱动.....................................................................................................15
2.4.3 斩波驱动.........................................................................................................16
2.4.4 细分驱动.........................................................................................................17
2.4.5 集成电路驱动.................................................................................................17
