【正文】 n＇ 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 III 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(qū)動系統(tǒng)概述 ................................................................................... 2 國內(nèi)外研究狀況及發(fā)展趨勢 ........................................................................... 3 論文研究內(nèi)容 ................................................................................................... 4 第 2 章 步進電機及其驅(qū)動系統(tǒng) ................................................................................ 5 步進電機及其工作原理 ................................................................................... 5 步進電機的結(jié)構(gòu)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(qū)動系統(tǒng) ........................................................................................... 7 步進電機驅(qū)動系統(tǒng)簡介 ............................................................................ 7 步進電機細(xì)分驅(qū)動原理及特點 ................................................................ 8 本章小結(jié) ........................................................................................................... 9 第 3 章 控制芯片及相關(guān)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(shù)模轉(zhuǎn)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(qū)動電路簡介 ..................................................................................... 16 IR2130 結(jié)構(gòu)及功能 .................................................................................. 16 IR2130 的逆變器電路結(jié)構(gòu) ...................................................................... 18 本章小結(jié) ......................................................................................................... 18 第 4 章 系統(tǒng)構(gòu)架與硬件電路的設(shè)計 ...................................................................... 20 系統(tǒng)硬件結(jié)構(gòu) ................................................................................................. 20 系統(tǒng)硬件電路設(shè)計 ......................................................................................... 21 單片機控制電路 ...................................................................................... 21 電機驅(qū)動電路 .......................................................................................... 21 數(shù)模轉(zhuǎn)換電路 .......................................................................................... 22 IV 開關(guān)電源電路 .......................................................................................... 22 顯示和鍵處理電路 .................................................................................. 23 本章小結(jié) ......................................................................................................... 24 第 5 章 系統(tǒng)軟件設(shè)計 .......