隨著人類的進步，科技的發展。現每個的家庭中都有或大或小的電器，當然也離不開電源適配器輔助設備。

　　電源(yuan)適配(pei)器的應用極為廣泛，日常生活(huo)用的電冰(bing)箱、洗衣機、空氣(qi)凈化器、家里(li)的LED燈具和(he)照明設(she)備、數(shu)碼相機，座機電話、電腦(nao)、筆記(ji)本(ben)等。除了(le)我(wo)們日常的所見到的這(zhe)些東西以外，電源(yuan)適配(pei)器還應用在一(yi)些比較大的設(she)備上面。比如(ru)說數(shu)控機床(chuang)、工業(ye)自動化控制(zhi)系統、電力設(she)備和(he)醫療(liao)設(she)備上。在高校做科(ke)研的時(shi)候所用的科(ke)研設(she)備也有(you)涉(she)及電源(yuan)適配(pei)器。

　　有(you)(you)很(hen)多人把電(dian)(dian)(dian)源適配(pei)(pei)器(qi)(qi)和電(dian)(dian)(dian)池的(de)(de)(de)作用(yong)(yong)搞混了(le)。其實這兩者是(shi)有(you)(you)著本質區別的(de)(de)(de)。電(dian)(dian)(dian)池是(shi)用(yong)(yong)來儲備電(dian)(dian)(dian)量的(de)(de)(de)，而電(dian)(dian)(dian)源適配(pei)(pei)器(qi)(qi)是(shi)電(dian)(dian)(dian)源到(dao)設備，到(dao)電(dian)(dian)(dian)池之(zhi)間(jian)的(de)(de)(de)一(yi)(yi)個轉換系統。如果(guo)沒(mei)(mei)有(you)(you)電(dian)(dian)(dian)源適配(pei)(pei)器(qi)(qi)的(de)(de)(de)話，一(yi)(yi)旦電(dian)(dian)(dian)壓不穩，我們(men)(men)的(de)(de)(de)電(dian)(dian)(dian)腦、筆記本、電(dian)(dian)(dian)視等就會被燒掉。所以說(shuo)有(you)(you)了(le)電(dian)(dian)(dian)源適配(pei)(pei)器(qi)(qi)對(dui)我們(men)(men)的(de)(de)(de)家用(yong)(yong)電(dian)(dian)(dian)器(qi)(qi)來說(shuo)是(shi)一(yi)(yi)個很(hen)好的(de)(de)(de)保護，同時也(ye)提(ti)高了(le)電(dian)(dian)(dian)器(qi)(qi)的(de)(de)(de)安(an)全性能。對(dui)我們(men)(men)自(zi)身(shen)身(shen)體(ti)也(ye)起(qi)到(dao)保護，試想一(yi)(yi)下如果(guo)我們(men)(men)的(de)(de)(de)電(dian)(dian)(dian)器(qi)(qi)沒(mei)(mei)有(you)(you)電(dian)(dian)(dian)源適配(pei)(pei)器(qi)(qi)的(de)(de)(de)話，一(yi)(yi)旦電(dian)(dian)(dian)流過大(da)會突然中(zhong)斷，就有(you)(you)可能引起(qi)電(dian)(dian)(dian)器(qi)(qi)爆炸(zha)或者起(qi)火花等，造成的(de)(de)(de)爆破或者火災，對(dui)我們(men)(men)的(de)(de)(de)生命(ming)健康都(dou)有(you)(you)著很(hen)大(da)的(de)(de)(de)威脅(xie)。可以說(shuo)有(you)(you)了(le)電(dian)(dian)(dian)源適配(pei)(pei)器(qi)(qi)就相當于給(gei)我們(men)(men)的(de)(de)(de)家用(yong)(yong)電(dian)(dian)(dian)器(qi)(qi)上了(le)保險(xian)。再也(ye)不用(yong)(yong)擔心那(nei)些意外事(shi)故了(le)。