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一、電源適配器是什么

電(dian)源(yuan)適(shi)配器(qi)(qi)(qi)又(you)稱外置(zhi)電(dian)源(yuan)，是(shi)一種小型便攜式電(dian)子(zi)(zi)設備及電(dian)子(zi)(zi)電(dian)器(qi)(qi)(qi)的供電(dian)電(dian)壓變換設備，由(you)外殼、變壓器(qi)(qi)(qi)、電(dian)感、電(dian)容、控制IC、PCB板等元器(qi)(qi)(qi)件組成，它的作用主要是(shi)：將電(dian)流(liu)由(you)交流(liu)輸(shu)(shu)入轉(zhuan)換為直流(liu)輸(shu)(shu)出，把不穩定的電(dian)源(yuan)通過轉(zhuan)化電(dian)路變成電(dian)子(zi)(zi)產品需(xu)要的恒壓直流(liu)電(dian)，從而(er)給物體供電(dian)和充電(dian)。電(dian)源(yuan)適(shi)配器(qi)(qi)(qi)可(ke)以(yi)(yi)看作是(shi)變壓器(qi)(qi)(qi)和整流(liu)器(qi)(qi)(qi)，可(ke)以(yi)(yi)起到(dao)保護電(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)源(yuan)適(shi)(shi)配(pei)器(qi)(qi)(qi)并不(bu)是(shi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)，電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)(shi)配(pei)器(qi)(qi)(qi)是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)開關，用(yong)于提(ti)供電(dian)(dian)(dian)(dian)(dian)(dian)力(li)能(neng)源(yuan)，可以給投(tou)影儀、筆(bi)記本(ben)電(dian)(dian)(dian)(dian)(dian)(dian)腦、音(yin)響、凈水器(qi)(qi)(qi)等家(jia)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)或電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)產品(pin)提(ti)供電(dian)(dian)(dian)(dian)(dian)(dian)力(li)；而充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)是(shi)用(yong)來給電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)的，一般會根據電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)容量和(he)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)特性進行分階段充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，二者是(shi)不(bu)同的。電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)(shi)配(pei)器(qi)(qi)(qi)和(he)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)的區別(bie)還(huan)體現在定義、結構、電(dian)(dian)(dian)(dian)(dian)(dian)流模(mo)式、用(yong)途等方面，最大的區別(bie)就是(shi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)器(qi)(qi)(qi)只是(shi)給電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，而電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)適(shi)(shi)配(pei)器(qi)(qi)(qi)不(bu)僅能(neng)給電(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)(dian)(dian)(dian)，還(huan)能(neng)給主(zhu)機供電(dian)(dian)(dian)(dian)(dian)(dian)。

三、電源適配器可以通用嗎

一般情況下，電源適(shi)配器(qi)能(neng)否通(tong)用(yong)(yong)要(yao)滿(man)足三(san)(san)個條件：輸出(chu)電壓必(bi)須相(xiang)同、輸出(chu)的(de)(de)(de)額定電流比(bi)原(yuan)(yuan)電器(qi)要(yao)求的(de)(de)(de)要(yao)大、接口相(xiang)同，如果(guo)這三(san)(san)個方面都滿(man)足的(de)(de)(de)話，可以臨(lin)時通(tong)用(yong)(yong)一下。不(bu)過(guo)需要(yao)注(zhu)意的(de)(de)(de)是(shi)(shi)，部分電源適(shi)配器(qi)也是(shi)(shi)不(bu)可以通(tong)用(yong)(yong)的(de)(de)(de)，通(tong)用(yong)(yong)可能(neng)會導致電器(qi)燒壞、無法(fa)使用(yong)(yong)等問(wen)題，因此如果(guo)原(yuan)(yuan)來的(de)(de)(de)電源適(shi)配器(qi)損壞，建議(yi)還是(shi)(shi)聯系廠家購買一個原(yuan)(yuan)裝(zhuang)電源適(shi)配器(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。