小功率无线充电器设计

三江学院本科生毕业设计（论文）题目小功率无线充电器设计电气与自动化工程学院（系）电气工程及其自动化专业学生姓名学号指导教师职称指导教师工作单位电气与自动化工程学院起讫日期摘要无线充电器是指采用电磁感应原理来充电的器材，原理很像变压器。这个系统有两个端口，一个是发射端，一个是接受端，发射端和接受端都是由线圈构成，发射端线圈和电路相连可以发射电磁波，接收端接收电磁波后连接到内部电路产生直流电压。因为这种技术还没有完全成熟很多厂商都在研究这个技术，他们对这种技术都有自己的叫法，例如无线充电、感应电力、不接触充电、无接点充电都是指这种的技术，供电与受电端交互作用就是电磁感应，所以无线充电技术是广义的词没有绝对的参数设定。无线充电技术有很多好处，例如非常方便，通用，安全，很多电气设备都可以使用一种充电基站，相信在将来，所有的设备都会用无线充电。这给人们带来的意义和影响非常重大。这篇文章讲解一种以电磁感应原理为基础在运用一些无线充电控制芯片实现电能传输的无线充电器装置。对电磁感应原理，系统电路和控制芯片进行了重要分析。关键词：电磁感应；无线充电技术；无线充电控制芯片ABSTRACTWirelesschargeristheprincipleofelectromagneticinductiontochargetheequipment,principlesliketransformers.Thissystemhastwoports,onetransmitterandonereceivingend,thetransmittingendandthereceivingendisconstitutedbyacoil,thetransmittercoilandthecircuitconnectedtotheelectromagneticwavecanbetransmitted,thereceivingsidereceivesanelectromagneticwavegeneratingcircuitconnectedtoaDCvoltagetotheinternal.Becausethistechnologyisnotyetfullymature,manymanufacturersarelookingatthistechnology,theyhavetheirownnameforthistechnology,suchaswirelesscharging,inductiveelectricity,donottouchthecharge,non-contactchargingallrefertothistechnology,interactionwiththereceivingendpoweriselectromagneticinduction,thewirelesschargingtechnologyisabroadtermthereisnoabsoluteparameters.Wirelesschargingtechnologyhasmanyadvantages,suchasveryconvenient,universal,safe,manyelectricaldevicescanusearechargeablebase,Ibelievethatinthefuture,alldeviceswillusewirelesscharging.Thisgaverisetoaverysubstantialsignificanceandimpact.Thisarticleexplainsakindofelectromagneticinductionprincipleisbasedontheuseofsomewirelesschargingcontrolchipwirelesspowertransmissiondevicecharger.Ontheprincipleofelectromagneticinduction,circuitsandcontrolsystemsimportantchipanalysis.Keywords:Electromagneticinductionprinciple;Wirelesschargingtechnology;Wirelesschargingcontrolchip；目录第一章绪论..............................................................................................................11.1无线充电技术的概论.........................................................................................11.1.1电磁感应技术...........................................................................................11.1.2电磁共振技术...........................................................................................11.1.3无线电波技术...........................................................................................11.2无线充电研究现状.............................................................................................21.3无线充电研究的意义.........................................................................................3第二章电磁感应原理............................................................................................42.1电磁感应发现.....................................................................................................42.2电磁感应基本概念.............................................................................................52.2.1磁通量.......................................................................................................52.2.2电磁感应现象...........................................................................................52.2.3能量的转化...............................................................................................62.2.4感应电动势...............................................................................................62.3计算公式.............................................................................................................62.4电磁感应意义.....................................................................................................6第三章电路设计.....................................................................................................83.1结构设计.............................................................................................................83.2具体电路设计.....................................................................................................93.2.1无线充电器主电路设计...........................................................................93.2.2控制芯片的简介.....................................................................................103.2.3无线充电器分电路设计.........................................................................12第四章测试结果与分析.....................................................................................164.1结果分析...........................................................................................................16结束语..........................................................................................................................19致谢..........................................................................................................................20参考文献.....................................................................................................................21三江学院2014届本科生毕业设计（论文）1第一章绪论1.1无线充电技术的概论用无线电来传输电能的技术即所谓的无线电源技术。因为要能够满足对电能质量的需求，所以要求传输的效率高、功率大；并且能够研究应用它的领域非常广泛，如因它相差很大的传输功率，从大的磁悬浮列车上的几兆瓦功率到机器人、电动汽车的上千瓦功率到小型器材的几十瓦功率再到用于生物技术的几十毫瓦。目前拥有三种比较成熟的技术，无线电波技术、电磁感应技术、电磁共振技术。1.1.1电磁感应技术这种技术类似电力系统中经常用的变压器原理。将交变电流接入变压器的原边，根据电磁感应原理副边就会产