一、電源適配器是什么

電(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器(qi)(qi)(qi)又稱外置電(dian)(dian)(dian)(dian)源(yuan)，是一種小(xiao)型便攜式(shi)電(dian)(dian)(dian)(dian)子(zi)設備(bei)及(ji)電(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的(de)(de)供電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)(ya)變(bian)換設備(bei)，由外殼、變(bian)壓(ya)(ya)器(qi)(qi)(qi)、電(dian)(dian)(dian)(dian)感、電(dian)(dian)(dian)(dian)容、控制IC、PCB板等元器(qi)(qi)(qi)件組成，它的(de)(de)作用(yong)主要是：將(jiang)電(dian)(dian)(dian)(dian)流(liu)由交流(liu)輸(shu)(shu)入(ru)轉換為直流(liu)輸(shu)(shu)出，把不穩定的(de)(de)電(dian)(dian)(dian)(dian)源(yuan)通過(guo)轉化電(dian)(dian)(dian)(dian)路變(bian)成電(dian)(dian)(dian)(dian)子(zi)產品需要的(de)(de)恒壓(ya)(ya)直流(liu)電(dian)(dian)(dian)(dian)，從而(er)給(gei)物(wu)體供電(dian)(dian)(dian)(dian)和(he)充電(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)源(yuan)適(shi)配(pei)器(qi)(qi)(qi)可(ke)以看作是變(bian)壓(ya)(ya)器(qi)(qi)(qi)和(he)整(zheng)流(liu)器(qi)(qi)(qi)，可(ke)以起到保(bao)護電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)和(he)人(ren)身安全(quan)的(de)(de)作用(yong)。

二、電源適配器是充電器嗎

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適(shi)(shi)配器并不(bu)(bu)是充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適(shi)(shi)配器是電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)開關，用(yong)于提(ti)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)能(neng)(neng)源(yuan)(yuan)，可(ke)以給(gei)投影儀、筆記本(ben)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦、音響(xiang)、凈水器等家用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子產(chan)品提(ti)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)；而(er)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器是用(yong)來(lai)給(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)(de)(de)，一般(ban)會根據電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)容(rong)量和充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)特性進(jin)行分階段充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，二(er)者是不(bu)(bu)同的(de)(de)(de)(de)。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適(shi)(shi)配器和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器的(de)(de)(de)(de)區(qu)別(bie)還(huan)體現(xian)在(zai)定義、結(jie)構、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)模式(shi)、用(yong)途(tu)等方面，最(zui)大(da)的(de)(de)(de)(de)區(qu)別(bie)就是充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器只是給(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，而(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適(shi)(shi)配器不(bu)(bu)僅(jin)能(neng)(neng)給(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，還(huan)能(neng)(neng)給(gei)主機(ji)供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。

三、電源適配器可以通用嗎

一般情況下，電(dian)(dian)源適(shi)配器(qi)能(neng)否通用(yong)要滿足三個(ge)條件：輸(shu)出電(dian)(dian)壓必須相(xiang)同、輸(shu)出的(de)額定電(dian)(dian)流比原電(dian)(dian)器(qi)要求(qiu)的(de)要大、接口相(xiang)同，如果這(zhe)三個(ge)方面都(dou)滿足的(de)話，可以(yi)臨時通用(yong)一下。不過需要注意的(de)是(shi)，部(bu)分電(dian)(dian)源適(shi)配器(qi)也是(shi)不可以(yi)通用(yong)的(de)，通用(yong)可能(neng)會導致電(dian)(dian)器(qi)燒壞、無法(fa)使用(yong)等(deng)問題(ti)，因(yin)此(ci)如果原來(lai)的(de)電(dian)(dian)源適(shi)配器(qi)損壞，建(jian)議還(huan)是(shi)聯系廠家購買一個(ge)原裝(zhuang)電(dian)(dian)源適(shi)配器(qi)比較好。

四、電源適配器多少錢一個

電源適配器的價格并不高，根據輸入電壓大小、輸入電流類型、供電方式、電源安數等有所不同，價格大概在二十多元到四五十元左右，也有部分電源適配器產品可能會更貴一些。需要注意的是，電源適配器市場比較混亂，有一些比較便宜的電源適配器甚至只要幾塊錢，這種可能是以次充好、以舊充新的產品，不建議購買，要選擇正規優質的電源適配器品牌廠家購買產品。

電源適配器知識課堂>>