什么是電源適配器?使用電(dian)源(yuan)適配器相對有哪些作用呢(ni)(ni)?在什么情況下用外置的電(dian)源(yuan)適配器比(bi)較好呢(ni)(ni)?下面小編就這些問題做(zuo)簡單介紹。

　　什么是電源適配器?定義?

　　電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器是(shi)小型(xing)便攜式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設(she)(she)備及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器的供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)變(bian)換(huan)設(she)(she)備，一(yi)般(ban)由(you)外殼、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)變(bian)壓(ya)器和(he)整流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路組(zu)成(cheng)，按(an)其輸(shu)(shu)入類型(xing)可分(fen)為交(jiao)流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器和(he)直流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器;按(an)連接方式可分(fen)為插墻(qiang)式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器和(he)桌(zhuo)面式電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器。廣泛配(pei)套于電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)話(hua)子(zi)母機、游(you)戲(xi)機、語(yu)言復(fu)讀機、隨身聽、筆(bi)記本(ben)計(ji)算機、蜂窩電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)話(hua)等設(she)(she)備中。在電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器上都有(you)一(yi)個銘牌(pai)，上面標示著功率，輸(shu)(shu)入輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流量等指標，特別要注意輸(shu)(shu)入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的范(fan)圍，這(zhe)就(jiu)是(shi)所(suo)謂的“旅行電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器”，如果到市(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)只(zhi)有(you)100V的國家(jia)時(shi)，這(zhe)個特性就(jiu)很(hen)有(you)用了，有(you)些(xie)水貨筆(bi)記本(ben)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦(nao)是(shi)只(zhi)在原產地銷(xiao)售的，沒有(you)這(zhe)種設(she)(she)計(ji)，甚至只(zhi)有(you)100V的單(dan)一(yi)輸(shu)(shu)入電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，在我國的220V市(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)下插上就(jiu)會燒毀。

　　電源(yuan)適(shi)配(pei)(pei)器的作用(yong)就(jiu)是(shi)提供設備正常工(gong)作所需(xu)要的能(neng)量。就(jiu)是(shi)給設備供電。有(you)的外(wai)置有(you)的內置，與設備的應(ying)用(yong)和設計者有(you)關。 因為(wei)(wei)電源(yuan)適(shi)配(pei)(pei)器上有(you)相應(ying)的過(guo)(guo)溫(wen)(wen)保護功能(neng)，因此(ci)使用(yong)電源(yuan)適(shi)配(pei)(pei)器可(ke)以(yi)保護設備不(bu)(bu)受高溫(wen)(wen)的損害，穩定可(ke)靠(kao)的工(gong)作，同時具有(you)過(guo)(guo)流(liu)、過(guo)(guo)壓(ya)、過(guo)(guo)載保護功能(neng)，使設備不(bu)(bu)會(hui)因為(wei)(wei)電流(liu)、電壓(ya)等的波動而損壞(huai)。外(wai)置的電源(yuan)適(shi)配(pei)(pei)器使用(yong)比較靈活，只要可(ke)以(yi)符合設備要求的參數，就(jiu)可(ke)以(yi)使用(yong)同一個適(shi)配(pei)(pei)器。不(bu)(bu)過(guo)(guo)為(wei)(wei)保證(zheng)設備的正常運(yun)行，選(xuan)擇時一定要選(xuan)擇正規廠家生(sheng)產的電源(yuan)適(shi)配(pei)(pei)器。