摘要基于FPGA（Field－Programmable Gate Array）的直流电机控制电路设计，通过PWM （Pulse Width Modulation）调速系统改变直流电机的占空比来控制直流电机，从而实现直流电机的正转/反转、启动/加速、调速等操作。本文对直流电机的理论知识、基于FPGA的PWM调速原理、直流电机控制的基本原理以及Verilog HDL语言进行了梳理研究，进而完成了逻辑电路设计和程序的编写。建立软件与硬件相结合的仿真模式，对设计进行系统而全面的分析。软件仿真基于QuartusⅡ软件，将逻辑电路下载到FPGA EP3C25F324C8器件上进行硬件仿真。通过对软件仿真结果和硬件仿真结果比较分析，验证了基于FPGA的直流电机控制电路设计能够实现电机的正转/反转、启动/加速以及调速等操作，从而证明了其正确性。20314
关键词  直流电机  现场可编程门阵列  脉冲宽度调制  Verilog HDL
 毕业论文设计说明书（论文）外文摘要
Title  DC Motor Control Circuit Designed Base on the Principle of FPGA                          
Abstract
Design of control circuit of continuous current dynamo, which based on FPGA（Field－Programmable Gate Array）, manipulates the electrical machine by altering the duty ratio based on the system of PWM（Pulse Width Modulation）, and carries out the clockwise and anti-clockwise rotation， and the start and acceleration of the electrical machine, etc. The thesis proposes theoretical knowledge of continuous current dynamo, PWM speed regulation principle which based on FPGA, Basic knowledge on manipulation of continuous current dynamo and relative hardware written language knowledge of Verilog HDL, thus successfully achieved the logic circuit design and the program writing.
The analysis is based on software simulation and hardware simulation of the design system. The software simulation employs Quartus Ⅱ, and the hardware simulation adopts the downloaded DEA system whose core-board is EP3C25F324C8. By comparison of consequences of software and hardware simulation, the validity of continuous current dynamo that based on FPGA has been verified, after confirming that the system is able to carry out the multiple manipulations such as the clockwise and anti-clockwise rotation， and the start and acceleration of the electrical machine.
Keywords  continuous current dynamo  Field-Programmable Gate Array (FPGA) Pulse Width Modulation (PWM)    Verilog HDL
   目   次
1 引言    1
1.1 选题的背景    1
1.2 本课题的研究意义    2
1.3 课题国内外研究现状    3
1.4 课题主要研究内容及论文结构安排    3
2 直流电机的基本理论研究    5
2.1 直流电机的特点    5
2.2 直流电机的基本结构    5
2.3直流电机重要技术指标    7
2.4 本章小结    8
3 基于FPGA直流电机PWM调速相关研究    9
3.1 关于FPGA的相关研究    9
3.2 直流电机驱动原理    10
3.3 电机原理图    11
3.4 直流电机PWM调速原理    11
3.5 本章小结    13
4 硬件描述语言Verilog HDL及开发系统QuartusⅡ    13
4.1 Verilog HDL功能    14
4.2 QuartusⅡ开发系统    15
4.3 本章小结    15
5 FPGA内部设计及软件仿真分析    16
5.1 直流电机控制电路原理    16
5.2 FPGA内部电路逻辑图    16 基于FPGA的直流电机控制电路设计:http://www.youerw.com/tongxin/lunwen_12044.html