電源模塊、電源適配器和充(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)三(san)者(zhe)全是(shi)電(dian)(dian)(dian)(dian)源，只不過(guo)在主要用途上大不一樣，他(ta)們全是(shi)采用開關電(dian)(dian)(dian)(dian)源方(fang)式(shi)的。可是(shi)小量充(chong)電(dian)(dian)(dian)(dian)器(qi)(qi)并不是(shi)采用開關電(dian)(dian)(dian)(dian)源方(fang)法做的，電(dian)(dian)(dian)(dian)源適配器(qi)(qi)也是(shi)采用變電(dian)(dian)(dian)(dian)器(qi)(qi)輸出和線(xian)形整流器(qi)(qi)穩壓管輸出的。

　　開關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)是(shi)一(yi)(yi)種(zhong)將電(dian)(dian)(dian)(dian)(dian)壓(ya)220V交(jiao)流(liu)電(dian)(dian)(dian)(dian)(dian)流(liu)變為(wei)(wei)底壓(ya)交(jiao)流(liu)電(dian)(dian)(dian)(dian)(dian)的(de)一(yi)(yi)種(zhong)方法，差別于傳(chuan)統(tong)(tong)式工(gong)頻變壓(ya)器(qi)，一(yi)(yi)般采用這類電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)開關(guan)(guan)轉換工(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)壓(ya)技(ji)術性的(de)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)稱之為(wei)(wei)開關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)。電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊就是(shi)說一(yi)(yi)種(zhong)中小型的(de)開關(guan)(guan)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，關(guan)(guan)鍵分成AC-DC電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊和DC-DC電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)模(mo)塊。由于重(zhong)量輕，一(yi)(yi)般得加外(wai)場元器(qi)件應用，關(guan)(guan)鍵做(zuo)為(wei)(wei)工(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)壓(ya)變換功(gong)效，為(wei)(wei)系(xi)統(tong)(tong)軟件供電(dian)(dian)(dian)(dian)(dian)系(xi)統(tong)(tong)，不(bu)具(ju)備(bei)電(dian)(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)(dian)作(zuo)用。

　　電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器(qi)(qi)(qi)就(jiu)是指給機(ji)(ji)器(qi)(qi)(qi)設備出示(shi)電(dian)(dian)(dian)磁能的(de)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)，如臺式電(dian)(dian)(dian)腦主機(ji)(ji)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)、復印機(ji)(ji)電(dian)(dian)(dian)源(yuan)(yuan)(yuan)、顯示(shi)屏電(dian)(dian)(dian)源(yuan)(yuan)(yuan)，這種不叫充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)(qi)。電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器(qi)(qi)(qi)具備容(rong)積較(jiao)小、綠色環(huan)保、多(duo)種安全性維護、使用期長、運(yun)用覆蓋面廣等特性，大概可(ke)分成桌面型電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器(qi)(qi)(qi)、直插式電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器(qi)(qi)(qi)、多(duo)通道電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器(qi)(qi)(qi)、USB電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器(qi)(qi)(qi)這些。電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器(qi)(qi)(qi)包含充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)(qi)，可(ke)是充(chong)(chong)電(dian)(dian)(dian)器(qi)(qi)(qi)不包含電(dian)(dian)(dian)源(yuan)(yuan)(yuan)適(shi)配(pei)器(qi)(qi)(qi)。

　　充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器就是指只給電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源，是在開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源的(de)(de)基本上再加一(yi)(yi)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)檢驗和控制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，如(ru)恒流、反(fan)接(jie)、浮(fu)充、均充工作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)全自動(dong)調節(jie)這些(xie)。普(pu)遍(bian)的(de)(de)是USB充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器，也有手機上充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器、筆記本電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動(dong)車充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器這些(xie)，充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器一(yi)(yi)般(ban)是將220V轉(zhuan)換為適(shi)合(he)的(de)(de)交流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓，依據(ju)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)種類，會提升一(yi)(yi)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)管理方法電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，具備對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)開展電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)作用。

　　一(yi)(yi)直供(gong)電(dian)(dian)(dian)(dian)系(xi)(xi)統給機(ji)器(qi)設備(bei)的供(gong)電(dian)(dian)(dian)(dian)系(xi)(xi)統電(dian)(dian)(dian)(dian)源一(yi)(yi)般都(dou)叫電(dian)(dian)(dian)(dian)源適配(pei)器(qi)，像給沈(shen)陽監(jian)控(kong)攝(she)像頭或(huo)電(dian)(dian)(dian)(dian)子產(chan)品，與usb充電(dian)(dian)(dian)(dian)器(qi)在設計方(fang)案規(gui)定中大不一(yi)(yi)樣。usb充電(dian)(dian)(dian)(dian)器(qi)規(gui)定考慮不一(yi)(yi)樣頻率段不一(yi)(yi)樣電(dian)(dian)(dian)(dian)流(liu)量的必須(xu)，而監(jian)控(kong)器(qi)、監(jian)控(kong)攝(she)像頭等機(ji)器(qi)設備(bei)供(gong)電(dian)(dian)(dian)(dian)系(xi)(xi)統的電(dian)(dian)(dian)(dian)源適配(pei)器(qi)則(ze)偏(pian)重(zhong)電(dian)(dian)(dian)(dian)流(liu)量平穩(wen)。

　　電(dian)(dian)源(yuan)(yuan)(yuan)適(shi)(shi)配器關鍵適(shi)(shi)用(yong)中小型家用(yong)電(dian)(dian)器、電(dian)(dian)子(zi)器件產品，大部(bu)分是恒壓(ya)源(yuan)(yuan)(yuan)，維(wei)持輸出工作(zuo)電(dian)(dian)壓(ya)穩定(ding)，隨機器設備(bei)負荷(he)功率而(er)(er)全自(zi)動調(diao)節(jie)輸出電(dian)(dian)流(liu)量。而(er)(er)開(kai)關電(dian)(dian)源(yuan)(yuan)(yuan)是操(cao)縱全部(bu)電(dian)(dian)源(yuan)(yuan)(yuan)開(kai)關的變換電(dian)(dian)流(liu)量機器設備(bei)，適(shi)(shi)用(yong)全部(bu)的電(dian)(dian)子(zi)產品。