手機(jī)無線充電器設(shè)計(jì)畢業(yè)設(shè)計(jì).doc

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1、畢業(yè)設(shè)計(jì)手機(jī)無線充電器設(shè)計(jì)學(xué)生姓名：專業(yè)班級：電氣工程及其自動化指導(dǎo)教師：學(xué)院：手機(jī)無線充電器設(shè)計(jì)摘要隨著人類社會的不斷發(fā)展，科技不斷進(jìn)步，智能手機(jī)得以普及，給人們帶來了前所未有的科技體驗(yàn)，智能手機(jī)耗電快、電池續(xù)航短、充電頻繁帶來的接口損壞以及充電寶攜帶不便等問題也讓手機(jī)無線充電器迎來發(fā)展的契機(jī)?；诖耍敬萎厴I(yè)設(shè)計(jì)將設(shè)計(jì)一個(gè)手機(jī)無線充電器。提供更好的生活方式。本文將設(shè)計(jì)一個(gè)微距手機(jī)無線充電器，充電距離只有幾厘米，或者通過接觸進(jìn)行充電，可對一般手機(jī)鋰電池充電，充電定壓不會不超過5V。無線充電器的基本原理根本上還是電磁感應(yīng)原理，并不是什么新興技術(shù)。本文的主要內(nèi)容是設(shè)計(jì)充電器的電路，元器件的選擇。

2、無線充電器的電路部分的設(shè)計(jì)主要分為電能發(fā)射部分、電能接收轉(zhuǎn)換部分、充電部分。若電源為交流電，首先經(jīng)過整流電路整流、濾波，在高頻震蕩電路產(chǎn)生高頻振蕩，經(jīng)過功率放大電路，通過線圈L1發(fā)射出去，線圈L2接收到來自L1輻射的電能，同樣經(jīng)過整流濾波以后，由一個(gè)純控制電路來控制，給電池充電。這就是整個(gè)充電器的設(shè)計(jì)方案。本文將設(shè)計(jì)的無線充電器充電距離為微距，甚至需要通過接觸進(jìn)行充電，充電容量針對一般手機(jī)鋰電池。整體電路的設(shè)計(jì)秉承分塊設(shè)計(jì)，功能集中體現(xiàn)的思想：分成幾個(gè)電路模塊來設(shè)計(jì)，最終結(jié)合在一起實(shí)現(xiàn)無線充電的功能。電路設(shè)計(jì)將按現(xiàn)在手機(jī)無線充電器的一貫設(shè)計(jì)方式。關(guān)鍵詞無線充電電磁感應(yīng)互感微距MobileWir

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4、ryinconvenienceandotherissuesalsomakeswirelesschargerformobilephonedevelopmentopportunities.Basedonthis,thisgraduationdesignwilldesignamobilewirelesscharger.Provideabetterwayoflife.Thispaperwilldesignamacrocellphonecharger,wirelesschargingdistanceisonlyafewcentimeters,orthroughcontact,butfortheavera

5、gecellphonelithiumbattery,chargingconstantpressuremaybenomorethan5v.Thebasicprincipleofwirelesschargerfundamentallyorelectromagneticinductionprinciple,andnotwhatemergingtechnologies.Themaincontentofthispaperistodesignachargercircuit,thechoiceofcomponents.Wirelesschargercircuitpartofthedesignismainly

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7、mL1radiationpower,alsoafterrectifyingfiltering,byapurecontrolcircuittocontrol,torechargethebattery.Thisisthedesignofthecharger.Inthispaper,thedesignofawirelesschargerformacro,chargingbycontactwillbere