一、電源適配器是什么

電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配器又稱外(wai)置電(dian)(dian)(dian)(dian)(dian)源(yuan)，是(shi)一種(zhong)小型便攜式電(dian)(dian)(dian)(dian)(dian)子(zi)設備及電(dian)(dian)(dian)(dian)(dian)子(zi)電(dian)(dian)(dian)(dian)(dian)器的(de)(de)供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)壓(ya)變換設備，由(you)外(wai)殼、變壓(ya)器、電(dian)(dian)(dian)(dian)(dian)感、電(dian)(dian)(dian)(dian)(dian)容、控制IC、PCB板等元器件組成，它的(de)(de)作(zuo)用主要(yao)是(shi)：將(jiang)電(dian)(dian)(dian)(dian)(dian)流(liu)由(you)交(jiao)流(liu)輸(shu)入轉換為(wei)直(zhi)(zhi)流(liu)輸(shu)出，把不穩定的(de)(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)通過(guo)轉化電(dian)(dian)(dian)(dian)(dian)路變成電(dian)(dian)(dian)(dian)(dian)子(zi)產品需要(yao)的(de)(de)恒(heng)壓(ya)直(zhi)(zhi)流(liu)電(dian)(dian)(dian)(dian)(dian)，從而給物體供電(dian)(dian)(dian)(dian)(dian)和(he)充電(dian)(dian)(dian)(dian)(dian)。電(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)配器可以看作(zuo)是(shi)變壓(ya)器和(he)整流(liu)器，可以起到保護電(dian)(dian)(dian)(dian)(dian)器和(he)人身安全(quan)的(de)(de)作(zuo)用。

二、電源適配器是充電器嗎

電(dian)(dian)(dian)(dian)源(yuan)(yuan)適(shi)(shi)配(pei)器(qi)(qi)(qi)(qi)并不是充電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)，電(dian)(dian)(dian)(dian)源(yuan)(yuan)適(shi)(shi)配(pei)器(qi)(qi)(qi)(qi)是電(dian)(dian)(dian)(dian)源(yuan)(yuan)開關，用(yong)于提(ti)供電(dian)(dian)(dian)(dian)力能(neng)源(yuan)(yuan)，可以給(gei)投影儀、筆記本電(dian)(dian)(dian)(dian)腦(nao)、音(yin)響、凈水器(qi)(qi)(qi)(qi)等(deng)(deng)家用(yong)電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)或電(dian)(dian)(dian)(dian)子產品提(ti)供電(dian)(dian)(dian)(dian)力；而充電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)是用(yong)來給(gei)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)的，一般(ban)會根據電(dian)(dian)(dian)(dian)池容量(liang)和充電(dian)(dian)(dian)(dian)特性進行分階段充電(dian)(dian)(dian)(dian)，二者是不同的。電(dian)(dian)(dian)(dian)源(yuan)(yuan)適(shi)(shi)配(pei)器(qi)(qi)(qi)(qi)和電(dian)(dian)(dian)(dian)源(yuan)(yuan)充電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)的區別(bie)還(huan)體現(xian)在定義、結構(gou)、電(dian)(dian)(dian)(dian)流模式、用(yong)途(tu)等(deng)(deng)方面，最(zui)大的區別(bie)就是充電(dian)(dian)(dian)(dian)器(qi)(qi)(qi)(qi)只(zhi)是給(gei)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)，而電(dian)(dian)(dian)(dian)源(yuan)(yuan)適(shi)(shi)配(pei)器(qi)(qi)(qi)(qi)不僅能(neng)給(gei)電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)，還(huan)能(neng)給(gei)主機(ji)供電(dian)(dian)(dian)(dian)。

三、電源適配器可以通用嗎

一(yi)般情況下(xia)，電(dian)源(yuan)適配(pei)器能否通(tong)用(yong)要(yao)滿足三個(ge)條(tiao)件(jian)：輸(shu)出電(dian)壓必(bi)須相(xiang)同(tong)(tong)、輸(shu)出的(de)額定電(dian)流比(bi)原電(dian)器要(yao)求(qiu)的(de)要(yao)大(da)、接(jie)口相(xiang)同(tong)(tong)，如(ru)果這(zhe)三個(ge)方(fang)面都滿足的(de)話，可(ke)以(yi)臨(lin)時通(tong)用(yong)一(yi)下(xia)。不(bu)過需要(yao)注意(yi)的(de)是，部分(fen)電(dian)源(yuan)適配(pei)器也是不(bu)可(ke)以(yi)通(tong)用(yong)的(de)，通(tong)用(yong)可(ke)能會導致電(dian)器燒(shao)壞(huai)、無法使用(yong)等(deng)問題(ti)，因此如(ru)果原來的(de)電(dian)源(yuan)適配(pei)器損壞(huai)，建議(yi)還是聯系廠(chang)家(jia)購買一(yi)個(ge)原裝電(dian)源(yuan)適配(pei)器比(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>>