郑州大学本科毕业论文本科毕业设计（论文）题目单片机控制的直流斩波器院系专业名称电子信息工程年级班级学生姓名指导教师年月日-1-郑州大学本科毕业论文摘要传统开关电源是模数结合的硬件为主的控制方式，其控制精度、响应速度等都由电路拓扑结构和器件本身的参数决定，很难进一步提升其性能随着微处理器处理技术的日趋成熟，开关电源的软硬件结合的控制技术得到了广泛的关注，它呈现出纯硬件控制方式无法比拟的优点。本论文以单片机为控制核心对开关电源进行了可编程控制的设计。首先介绍了开关电源数控技术的研究现状及趋势；对整个系统的硬件电路进行了各模块的设计及对应器件的选型；在此基础上，对软件部分实现过程进行了详细阐述。【关键词】单片机，开关电源-1-郑州大学本科毕业论文AbstractConventionalswitchingpowersupplyiscombinedwithhardware-basedmodulecontrolmode,thecontrolaccuracy,responsespeedbythecircuittopologyanddeviceparametersofthedecisionitself,itisdifficulttofurtherimproveitsperformance.Withthemicroprocessorprocessingtechnologymatures,switchingpowersupplycontrolsoftwareandhardwarecombinationtechnologyhasbeenwidespreadconcern,itpresentsapurehardwarecontrolmodecannotmatchadvantage.Inthisthesis,thecoreofthemicrocontrollerforthecontrolofswitchingpowersupplyfortheprogrammablecontroloftheattempt.FirstintroducedthetechniqueofswitchingpowersupplyCNCstatusandtrends;onthewholesystemhasbrieflyintroducesthehardwaredesignandpartialimplementationofthesoftwareprocessdescribedindetail.Keywords：microcontroller,switchingpowersupply-2-郑州大学本科毕业论文目录目录......................................................3第一章前言...............................................61.选题目的和意义............................................62.国内外综述................................................6第二章系统硬件设计......................................82.1系统原理................................................82.2硬件的选取..............................................92.3半桥输出的PWM波产生电路...............................102.4A/D采样及调理电路......................................102.41电压采样电路.........................................112.42电流采样调理电路....................................112.5矩阵键盘电路...........................................122.6液晶LCD显示电路.......................................142.61液晶1602显示器介绍.................................142.62本系统中1602的应用...................................15第三章系统软件设计......................................163.1软件设计总体思路.......................................173.2系统主程序模块.........................................173.21始初化模块..........................................183.22PWM波发生模块.......................................193.23A/D转换模块.........................................233.24PID算法处理模块.....................................273.25LCD液晶显示模块.....................................293.26按键处理模块........................................293.3中断服务程序模块.......................................31-3-郑州大学本科毕业论文3.31中断程序原理及框图..................................313.32数字滤波算法........................................32第四章结论...........................................34致谢...................................................36参考文献.................................................37附录.....................................................39目录？前言1.选题目的和意义直流斩波电路（DCChopper）的功能是...
