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一、電源適配器是什么

電(dian)源(yuan)適(shi)(shi)配(pei)器(qi)又稱外(wai)置電(dian)源(yuan)，是一種小型便攜式電(dian)子設備(bei)及電(dian)子電(dian)器(qi)的供(gong)電(dian)電(dian)壓(ya)變(bian)換(huan)設備(bei)，由外(wai)殼、變(bian)壓(ya)器(qi)、電(dian)感、電(dian)容、控制IC、PCB板等元器(qi)件組成(cheng)，它的作(zuo)用主(zhu)要是：將電(dian)流由交流輸入轉換(huan)為直(zhi)流輸出，把(ba)不(bu)穩定的電(dian)源(yuan)通過(guo)轉化電(dian)路變(bian)成(cheng)電(dian)子產品需要的恒壓(ya)直(zhi)流電(dian)，從而給物體供(gong)電(dian)和(he)充(chong)電(dian)。電(dian)源(yuan)適(shi)(shi)配(pei)器(qi)可以看作(zuo)是變(bian)壓(ya)器(qi)和(he)整(zheng)流器(qi)，可以起到(dao)保護電(dian)器(qi)和(he)人身安全的作(zuo)用。

二、電源適配器是充電器嗎

電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適配(pei)器(qi)并不是(shi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適配(pei)器(qi)是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)開(kai)關，用(yong)于提供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力能源(yuan)，可(ke)以給投影(ying)儀、筆(bi)記本電(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦、音響、凈水器(qi)等家(jia)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)或電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子產品(pin)提供(gong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力；而充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)是(shi)用(yong)來給電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)的，一般會根據(ju)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)容(rong)量和(he)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)特(te)性(xing)進行分(fen)階段充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，二者(zhe)是(shi)不同的。電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適配(pei)器(qi)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)的區(qu)別還(huan)體現在定義、結(jie)構、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流模式、用(yong)途等方(fang)面(mian)，最大的區(qu)別就是(shi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)器(qi)只是(shi)給電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，而電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適配(pei)器(qi)不僅能給電(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)，還(huan)能給主(zhu)機供(gong)電(dian)(dian)(dian)(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(shi)(shi)(shi)配(pei)器(qi)(qi)(qi)能否(fou)通(tong)用(yong)(yong)要(yao)滿足三個條件：輸出(chu)電(dian)壓必須(xu)相(xiang)(xiang)同、輸出(chu)的(de)(de)額定(ding)電(dian)流比(bi)(bi)原電(dian)器(qi)(qi)(qi)要(yao)求的(de)(de)要(yao)大、接(jie)口相(xiang)(xiang)同，如果這(zhe)三個方面都滿足的(de)(de)話，可以臨(lin)時通(tong)用(yong)(yong)一(yi)下(xia)。不(bu)過需要(yao)注(zhu)意的(de)(de)是(shi)，部分電(dian)源(yuan)適(shi)(shi)(shi)配(pei)器(qi)(qi)(qi)也是(shi)不(bu)可以通(tong)用(yong)(yong)的(de)(de)，通(tong)用(yong)(yong)可能會導致電(dian)器(qi)(qi)(qi)燒壞、無法使(shi)用(yong)(yong)等(deng)問題，因(yin)此(ci)如果原來的(de)(de)電(dian)源(yuan)適(shi)(shi)(shi)配(pei)器(qi)(qi)(qi)損壞，建議還是(shi)聯系廠家購(gou)買一(yi)個原裝電(dian)源(yuan)適(shi)(shi)(shi)配(pei)器(qi)(qi)(qi)比(bi)(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。