電源適配器又叫外置電(dian)(dian)(dian)(dian)(dian)源，是(shi)中小型手持式電(dian)(dian)(dian)(dian)(dian)子設備(bei)及(ji)電(dian)(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)(dian)器(qi)的供電(dian)(dian)(dian)(dian)(dian)系統工作電(dian)(dian)(dian)(dian)(dian)壓變換設備(bei)，多見于(yu)手機上、液晶(jing)顯示屏和(he)筆(bi)記(ji)本(ben)等中小型電(dian)(dian)(dian)(dian)(dian)子設備(bei)上。下(xia)(xia)邊人(ren)們看一下(xia)(xia)電(dian)(dian)(dian)(dian)(dian)源適配器(qi)是(shi)什么主要用途。

　　1、電(dian)(dian)(dian)(dian)源適配器(qi)(Poweradapter)是中小型手持式電(dian)(dian)(dian)(dian)子設備(bei)及(ji)電(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)器(qi)的供(gong)電(dian)(dian)(dian)(dian)系統(tong)開關電(dian)(dian)(dian)(dian)源變(bian)換設備(bei)，一般由機殼、變(bian)電(dian)(dian)(dian)(dian)器(qi)、電(dian)(dian)(dian)(dian)感(gan)器(qi)、"電(dian)(dian)(dian)(dian)容器(qi)、操縱IC、PCB板等電(dian)(dian)(dian)(dian)子器(qi)件構成.

　　2、它的原理由(you)溝通交流鍵入變換為直(zhi)流電(dian)輸(shu)出按(an)接口方式可分成(cheng)插(cha)嵌墻和(he)桌面型，普遍(bian)配套(tao)設施(shi)于智能安(an)防監控攝像(xiang)頭，電(dian)視機頂盒，無線路由(you),led燈(deng)條，按(an)摩器等設備中

　　左右(you)就是(shi)說電(dian)源適配器的適用范圍。