1.什么叫電源適配器？
　　電源適配器是小型便攜式電子設備及電子電器的供電電源變換設備，一般由外殼、電源變壓器和整流電路組成，按其輸出類型可分為交流輸出型和直流輸出型；按連接方式可分為插墻式和桌面式。廣泛配套于電話子母機、游戲機、語言復讀機、隨身聽、筆記本計算機、蜂窩電話等設備中。
　　多數筆記本電(dian)(dian)(dian)(dian)(dian)腦(nao)的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器可(ke)以(yi)適(shi)合用(yong)(yong)于100~240V交(jiao)流(liu)電(dian)(dian)(dian)(dian)(dian)(50/60Hz)。基本上(shang)大部份(fen)的(de)(de)筆記本電(dian)(dian)(dian)(dian)(dian)腦(nao)都(dou)(dou)把電(dian)(dian)(dian)(dian)(dian)源(yuan)外置(zhi)，用(yong)(yong)一(yi)條電(dian)(dian)(dian)(dian)(dian)源(yuan)線和(he)(he)主機(ji)連接，這(zhe)(zhe)樣可(ke)以(yi)縮(suo)小(xiao)主機(ji)的(de)(de)體(ti)積和(he)(he)重量(liang)，只(zhi)有極(ji)少數的(de)(de)機(ji)型(xing)把電(dian)(dian)(dian)(dian)(dian)源(yuan)內置(zhi)在(zai)主機(ji)內。在(zai)電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器上(shang)都(dou)(dou)有一(yi)個銘牌(pai)，上(shang)面(mian)標示著功率，輸(shu)入輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)和(he)(he)電(dian)(dian)(dian)(dian)(dian)流(liu)量(liang)等指標，特別要(yao)注意輸(shu)入電(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)范圍(wei)，這(zhe)(zhe)就是所謂的(de)(de)“旅行電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器”。

　　2.什么叫充電器？
　　充電器通常指的是一種將交流電轉換為低壓直流電的設備。充電器在各個領域用途廣泛，特別是在生活領域被廣泛用于手機、相機等等常見電器。
　　充電(dian)(dian)(dian)(dian)器是采用(yong)電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)子半導(dao)體器件(jian)，將電(dian)(dian)(dian)(dian)壓和頻率(lv)固(gu)定不變(bian)的(de)交流電(dian)(dian)(dian)(dian)變(bian)換為直流電(dian)(dian)(dian)(dian)的(de)一(yi)種靜止變(bian)流裝置。在以蓄電(dian)(dian)(dian)(dian)池為工作電(dian)(dian)(dian)(dian)源(yuan)(yuan)或備用(yong)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)用(yong)電(dian)(dian)(dian)(dian)場合(he)，充電(dian)(dian)(dian)(dian)器具有廣(guang)泛的(de)應用(yong)前景。

　　3.電源適配器和充電器的區別：
　　充電器包含適配器的功能，但充電器內部還有恒流、恒壓等滿足充電特征的控制電路，適配器的充電控制電路一般放在主機上完成。比如手機充電器以及筆記本電腦充電器其實只是個電源適配器，它內部是不包括充電控制電路的，充電的控制是在手機和電腦內部完成的。
　　充電(dian)(dian)器(qi)與適配(pei)器(qi)最大的區別在于：充電(dian)(dian)器(qi)只是給電(dian)(dian)池充電(dian)(dian)，而(er)適配(pei)器(qi)不僅能給電(dian)(dian)池充電(dian)(dian)，還能給主(zhu)機供電(dian)(dian)。