電源適配器又(you)叫外置電(dian)源(yuan)，是(shi)中(zhong)小(xiao)(xiao)型(xing)手持式電(dian)子設備及電(dian)子電(dian)器的供電(dian)系統(tong)工(gong)作電(dian)壓變換設備，多(duo)見于手機(ji)上、液晶(jing)顯示屏和筆記(ji)本等中(zhong)小(xiao)(xiao)型(xing)電(dian)子設備上。下(xia)(xia)邊人們看一下(xia)(xia)電(dian)源(yuan)適配器是(shi)什么主(zhu)要用途。

　　1、電(dian)源(yuan)適配器(qi)(qi)(qi)(Poweradapter)是中小型手(shou)持式電(dian)子(zi)設備(bei)(bei)及電(dian)子(zi)電(dian)器(qi)(qi)(qi)的供電(dian)系統開關電(dian)源(yuan)變換設備(bei)(bei)，一般由機(ji)殼、變電(dian)器(qi)(qi)(qi)、電(dian)感器(qi)(qi)(qi)、"電(dian)容器(qi)(qi)(qi)、操縱IC、PCB板等電(dian)子(zi)器(qi)(qi)(qi)件構成.

　　2、它的原理由(you)(you)溝通交流鍵入(ru)變換為直流電(dian)輸(shu)出(chu)按接口方式可分成(cheng)插嵌墻(qiang)和桌(zhuo)面型，普(pu)遍配套(tao)設(she)施于智能安防監(jian)控(kong)攝像(xiang)頭，電(dian)視機頂(ding)盒，無(wu)線路(lu)由(you)(you),led燈條，按摩器等設(she)備(bei)中(zhong)

　　左右(you)就是(shi)說電源適配器的(de)適用(yong)范(fan)圍。