【正文】 。MuWFA5uxY7JvnD6YWRrWwc^vR9CpbK! zn%MzFA5uxY7JnD6YWRr Wwc^vR9CpbK!zn%Mz849Gx^Gjqv^$UE9wEwZQcUE%amp。 MuWFA5uxY7JvnD6YWRr Wwc^vR9CpbK!zn%MzXNQExJB8VK% W7m$ZA5JdkVWce9APz^FvJzwYWCcyAh*bnxBvaFQH8YHV$amp。本 課題 在總結和歸納多種步進電機細分控制技術的基礎上，設計完成了基于單片機的步進電機細分控制系統(tǒng) 。該方案能避免其它相繞組的感應電壓和繞組電流的漂移帶來的誤差，提高了細分精度。 關鍵詞 單片機；步進電機；細分控制 III Design of Stepper Motor Subdivision Controller Based on Microcontroller Abstract Stepper motor is a kind of electromechanical ponent that is driven in step angle or line displacement by electric pulse signal. Because of having the advantage of easy openloop control and no accumulating error， stepper motor is being applied widely in many fields . As an integrated system including with both stepping motor and driver， its quality of operation is depended on the performance of motor， driver and controller .Generally， the noise of the stepping motor is great， and control precision is low， which can＇ t meet request of the high running quality in many situations . So the performance is improved in stepping motor operation through realizing the subdivision operation of stepping motor. This topic in summarizes various stepping motor subdivision control technology, on the basis of these technology, pleted the design of stepping motor subdivision system based on singlechip microputer The stepper motor?s microstepping driver is a kind of driving technology that can effectively improve the step precision and characteristic of low frequency. It is mostly used when the equipments require highprecision， low noise or low vibration system, and it is being a more and more popular driving technology. In this paper， the working principle and configuration of threephase Stepper are introduced， then based on technologies such as stepper motor controller and microcontroller .we analysis the using of microstepping driving technology to improve operational performance . Current subdividing technology not only overes the disadvantages of motor?s vibration and noise at low speeds but also reduces probability of resonance. It prevents the reactive voltage errors brought by other windings and the drift errors brought by current. It improves the precision of subdivision. In the thesis， we develop a single chip puterbased digital controlling system for a threephase stepper motor that is mainly constructed from a AT89CS1 single chip puter and 8279IC which is used as the core of control parts and a three fullbridge driver IR2130. The power stage of this driver uses IGBT IR2130 that provides high reliability. Based on the approach， the system＇ s whole architecture， the design of hardware and software are in traduced in detail. Keywords Single chip microputer； Stepper motor； Subdivide control IV 目錄 摘要 …… ....................................................................................................................... I Abstract ........................................................................................................................ II 第 1 章 緒論 ................................................................................................................ 1 課題背景 ........................................................................................................... 1 步進電機概述 ................................................................................................... 1 步進電機驅動系統(tǒng)概述 ................................................................................... 2 國內外研究狀況及發(fā)展趨勢 ........................................................................... 3 論文研究內容 ................................................................................................... 4 第 2 章 步進電機及其驅動系統(tǒng) ................................................................................ 5 步進電機及其工作原理 ................................................................................... 5 步進電機的結構特點 ................................................................................ 5 步進電機的 基本工作原理 ........................................................................ 5 繞組通電方式 ............................................................................................ 6 步距角的控制 ............................................................................................ 7 步進電機驅動系統(tǒng) ........................................................................................... 7 步進電機驅動系統(tǒng)簡介 ............................................................................ 7 步進電機細分驅動原理及特點 ................................................................ 8 本章小結 ........................................................................................................... 9 第 3 章 控制芯片及相關器件簡介 .......................................................................... 10 單片機的介紹 ................................................................................................. 10 芯片的選擇 .............................................................................................. 10 AT89C51 單片機與管腳功能簡介 ...........................................................11 8 位數模轉換器 DAC0832 簡介 .................................................................... 13 8279 顯示與鍵盤控制芯片簡介 ..................................................................... 15 8279 顯示鍵盤控制芯片的功能 .............................................................. 15 8279 顯示鍵盤控制芯片引腳定義 .......................................................... 15 IR2130 驅動電路簡介 ..................................................................................... 16 IR2130 結構及功能 .................................................................................. 16 IR2130 的逆變器電路結構 ...................................................................... 18 本章小結 ......................................................................................................... 18 第 4 章 系統(tǒng)構架與硬件電路的設計 ...................................................................... 20 系統(tǒng)硬件結構 ................................................................................................. 20 系統(tǒng)硬件電路設