電源適配器又叫(jiao)外置電源，是(shi)中小型(xing)手持(chi)式電子(zi)(zi)設備(bei)及(ji)電子(zi)(zi)電器(qi)的(de)供電系統工作(zuo)電壓變換設備(bei)，多(duo)見于手機(ji)上、液(ye)晶(jing)顯示屏和(he)筆記(ji)本(ben)等中小型(xing)電子(zi)(zi)設備(bei)上。下邊人(ren)們看一下電源適配器(qi)是(shi)什么主要用(yong)途。

　　1、電(dian)(dian)源(yuan)適配(pei)器(qi)(qi)(qi)(Poweradapter)是(shi)中(zhong)小(xiao)型手持(chi)式(shi)電(dian)(dian)子(zi)設備及電(dian)(dian)子(zi)電(dian)(dian)器(qi)(qi)(qi)的供電(dian)(dian)系統(tong)開關電(dian)(dian)源(yuan)變換設備，一般由機殼、變電(dian)(dian)器(qi)(qi)(qi)、電(dian)(dian)感器(qi)(qi)(qi)、"電(dian)(dian)容器(qi)(qi)(qi)、操縱IC、PCB板(ban)等電(dian)(dian)子(zi)器(qi)(qi)(qi)件構成(cheng).

　　2、它的原(yuan)理由(you)溝通交流鍵入變換(huan)為直流電(dian)輸出按接口(kou)方(fang)式可(ke)分成(cheng)插(cha)嵌墻和桌(zhuo)面型，普遍配套(tao)設施于智能安防監控攝像頭，電(dian)視機頂盒，無線路由(you),led燈條，按摩器(qi)等設備中

　　左右就是(shi)說電源(yuan)適配器的適用范圍。