一、電源適配器是什么

電(dian)(dian)源(yuan)(yuan)適配器(qi)(qi)(qi)又稱外(wai)置(zhi)電(dian)(dian)源(yuan)(yuan)，是一種小型(xing)便攜(xie)式電(dian)(dian)子(zi)設備及(ji)電(dian)(dian)子(zi)電(dian)(dian)器(qi)(qi)(qi)的供電(dian)(dian)電(dian)(dian)壓(ya)變換設備，由外(wai)殼、變壓(ya)器(qi)(qi)(qi)、電(dian)(dian)感(gan)、電(dian)(dian)容(rong)、控制IC、PCB板等(deng)元器(qi)(qi)(qi)件組成，它的作用主(zhu)要是：將電(dian)(dian)流(liu)由交流(liu)輸入轉換為(wei)直(zhi)流(liu)輸出，把(ba)不穩(wen)定(ding)的電(dian)(dian)源(yuan)(yuan)通過轉化電(dian)(dian)路變成電(dian)(dian)子(zi)產品需要的恒壓(ya)直(zhi)流(liu)電(dian)(dian)，從而給物體(ti)供電(dian)(dian)和充(chong)電(dian)(dian)。電(dian)(dian)源(yuan)(yuan)適配器(qi)(qi)(qi)可(ke)以(yi)看作是變壓(ya)器(qi)(qi)(qi)和整流(liu)器(qi)(qi)(qi)，可(ke)以(yi)起到保(bao)護電(dian)(dian)器(qi)(qi)(qi)和人身安全的作用。

二、電源適配器是充電器嗎

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)器(qi)(qi)并不(bu)是(shi)(shi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)器(qi)(qi)是(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)開關，用于提供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)能(neng)源(yuan)(yuan)，可以給(gei)(gei)投影儀、筆記本電(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦、音響、凈水器(qi)(qi)等家用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子產品(pin)提供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)；而(er)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)是(shi)(shi)用來給(gei)(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的，一般會根據電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)容(rong)量(liang)和充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)特(te)性(xing)進(jin)行分階段充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，二(er)者是(shi)(shi)不(bu)同的。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)器(qi)(qi)和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)的區別還體(ti)現在(zai)定義、結構、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流模式(shi)、用途等方(fang)面，最大(da)的區別就是(shi)(shi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)只是(shi)(shi)給(gei)(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，而(er)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)適配(pei)器(qi)(qi)不(bu)僅能(neng)給(gei)(gei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，還能(neng)給(gei)(gei)主機供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。

三、電源適配器可以通用嗎

一般情況下(xia)，電(dian)(dian)源適(shi)配器(qi)(qi)能否(fou)通用(yong)(yong)(yong)要(yao)滿足三個條(tiao)件：輸出(chu)電(dian)(dian)壓必須相同、輸出(chu)的(de)(de)(de)額定電(dian)(dian)流(liu)比(bi)原(yuan)電(dian)(dian)器(qi)(qi)要(yao)求的(de)(de)(de)要(yao)大(da)、接口相同，如果(guo)這(zhe)三個方面都滿足的(de)(de)(de)話，可以臨時通用(yong)(yong)(yong)一下(xia)。不(bu)過需(xu)要(yao)注意的(de)(de)(de)是，部分(fen)電(dian)(dian)源適(shi)配器(qi)(qi)也是不(bu)可以通用(yong)(yong)(yong)的(de)(de)(de)，通用(yong)(yong)(yong)可能會導致電(dian)(dian)器(qi)(qi)燒壞、無法(fa)使(shi)用(yong)(yong)(yong)等問(wen)題，因此(ci)如果(guo)原(yuan)來的(de)(de)(de)電(dian)(dian)源適(shi)配器(qi)(qi)損壞，建議還是聯系(xi)廠家購買一個原(yuan)裝電(dian)(dian)源適(shi)配器(qi)(qi)比(bi)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>>