現在市場上可以快充的(de)手機充電器的(de)類(lei)型有(you)(you)(you)很多(duo)，充電的(de)功率有(you)(you)(you)高(gao)有(you)(you)(you)低，上至華為mate40 的66W快充(chong)(chong)，下至蘋果iPhone12的20W快充(chong)(chong)。蘋果iPhone12的充(chong)(chong)電器的功(gong)率(lv)和(he)華為的相(xiang)差那(nei)么多，為什么還(huan)可以叫做(zuo)快充(chong)(chong)呢？和(he)一起(qi)來了解下手機快(kuai)充(chong)的標準(zhun)是什么(me)。

根據(ju)《泰爾論壇2017快充(chong)(chong)技術標(biao)準與應用研討會(hui)》給出(chu)的(de)(de)定義，從初始(shi)充(chong)(chong)電(dian)(dian)(dian)(dian)狀態開(kai)始(shi)，至充(chong)(chong)電(dian)(dian)(dian)(dian)30分鐘，期間進(jin)入電(dian)(dian)(dian)(dian)池(chi)的(de)(de)平(ping)均(jun)電(dian)(dian)(dian)(dian)流大(da)于等于3A或總(zong)充(chong)(chong)電(dian)(dian)(dian)(dian)量(liang)大(da)于等于電(dian)(dian)(dian)(dian)池(chi)額定容量(liang)的(de)(de)60%的(de)(de)充(chong)(chong)電(dian)(dian)(dian)(dian)方式。經(jing)過電(dian)(dian)(dian)(dian)源適配(pei)器廠家(jia)測試，iPhone12使用原裝的(de)(de)20W充(chong)(chong)電(dian)(dian)(dian)(dian)器充(chong)(chong)電(dian)(dian)(dian)(dian)，半小(xiao)時充(chong)電60%左右(you)，1小(xiao)時充電(dian)88%，完全充滿(man)需要1小(xiao)時40分(fen)左右(you)。符合快充條件，所以說(shuo)是(shi)不是(shi)快充，是(shi)由(you)輸(shu)入(ru)的電(dian)流和前(qian)半個小(xiao)時的充電(dian)速(su)度來決定的，和充電(dian)功率關系不大。

現在市場上手(shou)機主(zhu)流的快(kuai)充協議一共有5種(zhong)(zhong)，分別是(shi)QC快充，PD快充、VOOC閃充，華(hua)為快充，MTK協議(yi)，但這5種(zhong)(zhong)快充協議(yi)都(dou)是(shi)基于(yu)高(gao)壓(ya)低電(dian)(dian)流、低壓(ya)高(gao)電(dian)(dian)流的(de)(de)(de)充電(dian)(dian)方式來(lai)設計(ji)的(de)(de)(de)。前(qian)者是(shi)通過(guo)提(ti)(ti)高(gao)充電(dian)(dian)器的(de)(de)(de)輸(shu)出(chu)(chu)電(dian)(dian)壓(ya)來(lai)提(ti)(ti)高(gao)終端充電(dian)(dian)功(gong)率和速(su)率的(de)(de)(de)充電(dian)(dian)模式，后者是(shi)通過(guo)提(ti)(ti)高(gao)充電(dian)(dian)器的(de)(de)(de)輸(shu)出(chu)(chu)電(dian)(dian)流來(lai)提(ti)(ti)高(gao)終端充電(dian)(dian)功(gong)率和速(su)率的(de)(de)(de)充電(dian)(dian)模式。

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