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1、安徽建筑大学毕业设计(翻译)专业电子信息工程班级09城建电子②班姓名马吉智学号09290060216课题无线充电器的设计与制作————无线充电发射部分指导教师花海安2013年06月WirelesschargingtechnologyoverviewandoutlookOne,thehistoryofwirelesschargingtechnologyactuallyideaofwirelesspowersupplyhaveemergedasearlyasonehundredyearsago,in1890,nikolatesla,thefounderofthemodernalterna
2、tingcurrent(ac)systembegantoideaofwirelesspowersupplymethod,andfinallyputforwardaveryambitiousplan-theearthastheinnerconductor;Betweentheearthandtheionosphereestablishedabout8hzlowfrequencyresonance,recycledaroundtheearth'ssurfaceelectromagneticwavetotransmitpoweratadistance.Atthetime,teslaisas
3、eriesofexperimentsarecarriedoutusingcoil,createdthewirelesspowertransmission.In1990,andteslabeganhisresearch,andtrytomakeelectricitylikebroadcastacrossoceans,afterwardsbecauseofhugeinvestment,thetechnologyof"death".Althoughteslaresearchultimatelynoresults,buthisoriginalwirelesspowertechnologyid
4、eaisboldenough.Second,thedevelopmentofwirelesschargingtechnologyteslacoilatthetimedidn'tget,butinthemid-1920-s,JapaneseH.YagiandS.Udatheoreticallyconfirmedthissolutionisacompletelydifferentfromspecialpowersupplywayofcabletransmission,thewirelesspowersupplytechnology,photoelectriccoupling,electr
5、omagneticcouplingmainmagneticresonance,etc.Threedifferentways.Apowersupply,thecurrentwirelesspowersupplytechnology,photoelectriccoupling,electromagneticcouplingmainmagneticresonance,etc.Threedifferentways.1,electromagneticcoupling,electromagneticcouplingforpowerengineers,inthefamiliar,thetransf
6、ormeristousethisprincipletotransferenergy.Ifseparatetwowindingtransformer,issomethingofawirelesspowersupply.Rechargeableelectrictoothbrushisatypicalcase,buttheuseofelectromagneticcouplingwayhasalotofdisadvantages,nothighmagneticpermeabilityofmagneticcoreasamedium,thelinesofmagneticforcecanleadt
7、oseriousspreadintotheair,resultinginadeclineintransferringefficiency,especiallywhentwocoilfromdownbadly.Sothiswayisonlysuitableforsmallpower,closecommunication,forhigh-power,long-distancewirelesspowersupplyisnotsogoodthisway.2,pho
