基于单片机的无线充电器设计

基于单片机的无线充电器设计学生姓名：学生学号：院（系）：电气信息工程学院年级专业：电子信息工程指导教师：助理指导教师：二〇一五年五月摘要I摘要随着用电设备对供电质量、可靠性、方便性、安全性、特殊场合、特殊地理环境等要求的不断提高，接触式的电能传输方式对于满足实际需要越来越显得捉襟见肘了。与此同时，无线电能传输系统，摆脱了线路的限制，实现电器和电源的完全分离，具有无线传输电能、设备体积小、传输效率高、便于携带和集成等优点。本课题设计介绍了一种运用新型的能量传输利用电磁波感应原理和有关的交流感应技术，采用STC12C5A60S2低功耗单片机作为无线传能充电器的监测控制核心,实现电流控制和电压控制功能，电能充满后给出充满提示且自动停止充电。基于STC12C5A60S2单片机控制发射端和接收端产生的相应交流信号来进行充电的智能无线充电器。利用设计通过对系统的硬件部分和软件部分的设计实现无线能量传输，在距离发射线圈的指定范围内对小型用电器如手机、MP3等直接充电。硬件部分包括高效直流稳压模块、驱动模块、显示模块、控制模块等的设计；软件部分主要根据系统的设计思想设计出了主程序和子程序流程图，并通过C语言实现相应的编程要求。通过理论分析和仿真证明，建立谐振耦合无线电能传输系统模型以及谐振耦合无线电能传输系统模型,通过计算得出了系统中电路参数与输出功率的关系。设计并制作谐振耦合无线电能装置,使用LCD1602设计显示,实时充电电压显示。关键词无线电能传输,谐振耦合,无线充电器,LCD1602,STC12C5A60S2单片机ABSTRACTIIABSTRACTThispaperintroducedtheuseofapowertransmissiontechnology,wirelesspowersupplytechnologymodel,usingtheprincipleofelectromagneticinductionandtheinductiontechnology,intelligentwirelesschargerforchargingtheACsignalbasedontheSTC12C5A60S2single-chipmicrocomputertocontrolthetransmittingendandtheenvironmentandotherrequirementscontinuetoincrease,thepowertransmissionmodeofcontacttomeettheactualneedsbecomemoreandmoredifficult.Atthesametime,wirelesspowertransmissionsystem,getridofthelimitline,completelyseparateelectricalandpower,withthewirelesstransmissionofelectricalenergy,theequipmenthastheadvantagesofsmallvolume,hightransmissionefficiency,easytocarryandintegration.Intherapiddevelopmentofscienceandtechnologyin21Century,theprospectsforthedevelopmentofintelligentwirelesscharger.Thedesignthroughthedesignofthehardwarepartandthesoftwarepartofthesystemtoachievethewirelessenergytransmission,withinthespecifiedrangeofthetransmittingcoilinsmallappliancessuchasmobilephone,MP3andotherdirectcharge.ThehardwarepartincludesefficientDCpowermodule,drivemodule,displaymodule,controlmoduleandsoon;thesoftwarepartismainlybasedonthedesignthoughtofthesystemdesignofthemainprogramandthesubprogramflowchart,andthroughtheClanguagetoachievethecorrespondingprogrammingrequirements.relationshipbetweenthecircuitparametersandtheoutputpowerofthesystem.Thedesignandfabricationofresonantcouplingwirelessdevice,usingtheLCD1602designdrawprogressbarshowscharging,chargingvoltage,chargingtimedisplay.Keywordsradiotransmission,resonantcoupling,wirelesscharger,LCD1602STC12C5A60S2目录1目录摘要....................................................................................................................IABSTRACT...............................................................................................................II1绪论.................................................................................................................11.1课题背景...................................................................................................11.2国内外研究现状、水平.............................................................................11.3本课题的发展趋势.....................................................................................22系统总体设计方案.........................................................................................42.1系统总体设计方案简述..............................................................................42.1.1系统的基本功能.............................................................................42.1.2主要技术参数.................................................................................42.2系统设计方案选择.....................................................................................52.3方案分析...................................................................................................72.4系统的理论分析.........................................................................................83系统的硬件设计...........................................................................................103.1单片机的选择与其控制............................................................................103.1.1单片机概述..................................................................................103.1.2单片机STC12C5A60S2的介绍.......................................................103.1.3单片机最小系统的介绍................................................................113.1.4单片机控制模块设计....................................................................133.2无线发射电路模块设计............................................................................143.2.1NE555芯片简介...........................................................................143.2.2MOS管的选择与性能分析.............................................................153.2.3振荡电路的设计...........................................................................163.2.4功率放大电路的设计....................................................................173.3电源稳压控制模块设计...........................................................................183.3.1稳压器LM2940简介......................................................................183.3.2KA7500B芯片简介........................................................................193.3.3稳压控制电路设计........................................................................193.4按键指示电路模块设计............................................................................203.5显示电路设计及实现..............