基于无刷电机的调速.doc

无刷直流电机闭环调速控制系统
摘要
这篇文章设计了以C8051F单片机、MC33035、MC33039和HD7279A显示芯片为核心的无刷直流电机闭环调速控制系统。
MC33035是高性能第二代无刷直流电机专用集成控制器,可用来控制开环两相、三相或四相无换向电机所需的全部有效功能。该器件由具有良好整流序列的转子位置译码器、误差放大器、可提供传感器功率的温度补偿参考、频率可设定的锯齿波振荡器、3个集电极开路顶端驱动输出和3个非常适用于驱动功率场效应管(MOSFET)的大电流图腾柱式底部输出器构成。
MC33039是一款高性能的闭环速度控制芯片,专用于各种无刷直流电机控制系统中。利用MC33039无需专门的磁性或光学转速计就能完成精确地速度控制。
HD7279A是一片真正的单片LED数码管显示和键盘接口芯片,无需外围电路,只需要外接少量的电阻等即可构成完善的显示、键盘接口电路。
关键词无刷直流电机;C8051F单片机;MC33035;MC33039;HD7279A

Abstract
This paper designed a closed loop velocity adjustment control system of brushless DC motor based on C8051F, MC 33035、MC33039 and HD7279A.
The MC33035 is a high performance second generation monolithic brushless DC motor controller containing all of the active functions required to implement a full featured open loop, three or four phase motor control system. This device consists of a rotor position decoder. for mutation sequencing, pensated reference capable of supplying sensor power, frequency programmable sawtooth oscillator, three open collector top drivers,and three high current totem pole bottom drivers ideally suited for driving power MOSFETs.
The MC33039 is a high performance closed–loop speed control adapter specifically designed for use in brushless DC motor control systems. Implementation will allow precise speed regulation without the need for a ic or optical tachometer.
HD7279A is a new LED and keyboard interface intelligent control chip,it can construct good display and keyboard interface circuit using few resistances instead of outside circuit.
KEY WORDS brushless DC motor;C8051F;singlechip;MC33035;MC33039;HD7279A
目录
摘要 I
ABSTRACT II
目录 III
第1章绪论 - 4 -
课题来源 - 5 -
- 5 -
- 5 -
- 5 -
- 6 -
第2章智能排风系统中电机的控制原理 - 7 -
(直流无刷电机)的控制特性 - 7 -
(直流无刷电机)的控制结构 - 7 -
(直流无刷电机)的控制原理- 8-
第3章智能排风系统设计方案论证 - 9 -
方案简介 - 9 -
- 7 -
- 9 -
系统方案论证 - 10 -
第4章基于C8051F330单片机直流无刷电机的智