目

录

前言

 

                                                                           

 

 1

  

1.

   

总体设计方案

 

                                                            

 

 2

  

（一）方案一：

 

 PWM

 

     

 

波调速

 

                                                            

 

 2

  

（二）方案二：晶闸管调速

 

                                                                

 

 3

  

2.

   

单元模块设计

 

                                                            

 

 4

  

 

（一）

 

 H

       

桥驱动电路设计方案

 

                                                            

 

 4

  

  

（二） 调速设计方案

 

                                                                       

 

 5

  

（三）系统硬件电路设计

 

                                                                   

 

 6

  

1.

   

电源电路

 

                                                                                

 

 6

  

2

  

．

   H

       

桥驱动电路

 

                                                                        

 

 7

  

3

  

．基于霍尔传感器的测速模块

 

                                                     

 

 8

  

4

  

．

   LCD

 

     

显示模块

 

                                                                       

 

 9

  

  

（四） 调速设计模块

 

                                                                     

 

 10

   

1

  

．

   PWM

 

     

波软件软件设计

 

                                                          

 

 10

   

2

  

．测速软件设计

 

                                                                      

 

 13

   

3.

   

系统功能调试

 

                                                          

 

 14

   

（一）调试软件介绍

 

                                                                       

 

 14

   

（二）直流电机的调速功能仿真

 

                                                       

 

 15

   

1

  

．调速前的波形图

 

                                                                   

 

 15

   

2

  

．调速后的波形图

 

                                                                   

 

 15

   

（三）电机速度的测量并显示功能仿真

 

                                              

 

 16

   

（四）系统的电路原理图

 

                                                                 

 

 16

   

（五）系统的

 

     PCB

 

     

图

                                                                       

 

 17

   

4.

   

设计总结

 

                                                                

 

 18

   

5.

   

参考文献

 

                                                                

 

 18

   

附录

 

                                                                         

 

 18