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单片机课程设计PWM直流电动机调速控制系统方案.docx

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单片机课程设计PWM直流电动机调速控制系统方案

目录

一、内容概述...............................................2

1.1项目背景...............................................2

1.2项目目的...............................................3

1.3项目意义...............................................3

二、系统需求分析...........................................5

2.1功能需求...............................................5

2.2性能需求...............................................7

2.3系统约束...............................................8

三、系统总体设计...........................................9

3.1系统架构..............................................10

3.2硬件设计..............................................13

3.2.1单片机选型..........................................14

3.2.2电源设计............................................16

3.2.3电机驱动电路........................................17

3.2.4传感器接口..........................................18

3.2.5人机交互界面........................................19

3.3软件设计..............................................20

3.3.1系统软件架构........................................22

3.3.2软件模块设计........................................24

四、PWM直流电动机调速控制原理.............................25

4.1PWM调制原理...........................................26

4.2电动机调速原理........................................27

4.3控制策略..............................................29

五、系统实现与测试........................................30

5.1硬件实现..............................................30

5.2软件实现..............................................32

5.3系统测试..............................................33

5.3.1功能测试............................................34

5.3.2性能测试............................................34

5.3.3可靠性测试..........................................36

六、系统优化与改进........................................37

6.1系统优化..............................................38

6.2改进措施..............................................39

七、结论..................................................40

7.1项目总结..............................................41

7.2项目展望.............

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