電源適配器又叫外置電(dian)(dian)(dian)源，是(shi)中小型(xing)手持式(shi)電(dian)(dian)(dian)子(zi)設備及電(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)器的供電(dian)(dian)(dian)系(xi)統工作電(dian)(dian)(dian)壓變換設備，多見于手機上、液晶顯示屏和(he)筆記本等中小型(xing)電(dian)(dian)(dian)子(zi)設備上。下邊(bian)人們看一下電(dian)(dian)(dian)源適配器是(shi)什么主要用途。

　　1、電(dian)(dian)源適配器(Poweradapter)是中小型手持式電(dian)(dian)子設(she)備(bei)及電(dian)(dian)子電(dian)(dian)器的(de)供電(dian)(dian)系統(tong)開關(guan)電(dian)(dian)源變換設(she)備(bei)，一(yi)般由機殼、變電(dian)(dian)器、電(dian)(dian)感器、"電(dian)(dian)容器、操縱IC、PCB板等電(dian)(dian)子器件(jian)構成.

　　2、它(ta)的(de)原(yuan)理由溝通交流(liu)鍵入(ru)變換為直流(liu)電(dian)輸出按(an)接口方式可分成(cheng)插嵌墻(qiang)和桌(zhuo)面型，普遍配(pei)套設(she)施(shi)于智能安(an)防監控攝(she)像頭，電(dian)視機頂(ding)盒，無線路由,led燈條，按(an)摩器等設(she)備中

　　左右就(jiu)是(shi)說(shuo)電源適配器的適用范(fan)圍。