什么是電源適配器?使用電源適配器(qi)相對有哪些作用呢(ni)?在什么情況下用外置的(de)電源適配器(qi)比(bi)較好呢(ni)?下面小編就這些問題做簡單介(jie)紹。

　　什么是電源適配器?定義?

　　電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)(pei)器(qi)(qi)是(shi)小型便攜(xie)式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)設備(bei)及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)(de)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)換設備(bei)，一般(ban)由外殼、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)變(bian)壓(ya)器(qi)(qi)和整流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路組(zu)成，按(an)其輸入(ru)類型可(ke)分為交流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)(pei)器(qi)(qi)和直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)(pei)器(qi)(qi);按(an)連接方式(shi)可(ke)分為插墻式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)(pei)器(qi)(qi)和桌(zhuo)面式(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)(pei)器(qi)(qi)。廣泛配(pei)(pei)套于(yu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)話子(zi)母(mu)機(ji)(ji)、游戲機(ji)(ji)、語言(yan)復讀機(ji)(ji)、隨身聽、筆記本計算機(ji)(ji)、蜂窩電(dian)(dian)(dian)(dian)(dian)(dian)(dian)話等(deng)設備(bei)中。在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)(pei)器(qi)(qi)上都有一個銘牌，上面標示著功率，輸入(ru)輸出電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)量等(deng)指(zhi)標，特別要注意輸入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)(de)(de)范圍，這(zhe)就是(shi)所謂的(de)(de)(de)(de)“旅行電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)(pei)器(qi)(qi)”，如(ru)果到市(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)只(zhi)有100V的(de)(de)(de)(de)國家時，這(zhe)個特性就很有用了，有些水貨(huo)筆記本電(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦(nao)是(shi)只(zhi)在(zai)原產地銷(xiao)售的(de)(de)(de)(de)，沒有這(zhe)種(zhong)設計，甚至只(zhi)有100V的(de)(de)(de)(de)單一輸入(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，在(zai)我國的(de)(de)(de)(de)220V市(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)下插上就會燒(shao)毀。

　　電源(yuan)適(shi)配(pei)器的(de)(de)作用(yong)(yong)就(jiu)是提(ti)供設(she)備(bei)正(zheng)常(chang)工(gong)作所需要的(de)(de)能量(liang)。就(jiu)是給(gei)設(she)備(bei)供電。有的(de)(de)外置(zhi)有的(de)(de)內(nei)置(zhi)，與(yu)設(she)備(bei)的(de)(de)應用(yong)(yong)和設(she)計者(zhe)有關。 因(yin)為(wei)電源(yuan)適(shi)配(pei)器上有相應的(de)(de)過(guo)溫保護功(gong)能，因(yin)此(ci)使(shi)用(yong)(yong)電源(yuan)適(shi)配(pei)器可以(yi)保護設(she)備(bei)不受高溫的(de)(de)損害，穩(wen)定可靠的(de)(de)工(gong)作，同時(shi)具有過(guo)流(liu)(liu)、過(guo)壓(ya)、過(guo)載保護功(gong)能，使(shi)設(she)備(bei)不會因(yin)為(wei)電流(liu)(liu)、電壓(ya)等的(de)(de)波動而損壞。外置(zhi)的(de)(de)電源(yuan)適(shi)配(pei)器使(shi)用(yong)(yong)比較靈活(huo)，只(zhi)要可以(yi)符合設(she)備(bei)要求(qiu)的(de)(de)參數，就(jiu)可以(yi)使(shi)用(yong)(yong)同一個適(shi)配(pei)器。不過(guo)為(wei)保證設(she)備(bei)的(de)(de)正(zheng)常(chang)運行(xing)，選(xuan)擇時(shi)一定要選(xuan)擇正(zheng)規廠家生產(chan)的(de)(de)電源(yuan)適(shi)配(pei)器。