電源模塊、電源適配器和充電(dian)(dian)器(qi)三者全(quan)是(shi)(shi)電(dian)(dian)源，只不(bu)過在主要用(yong)途(tu)上大不(bu)一樣，他們全(quan)是(shi)(shi)采(cai)(cai)用(yong)開關(guan)電(dian)(dian)源方式的(de)。可是(shi)(shi)小(xiao)量充電(dian)(dian)器(qi)并不(bu)是(shi)(shi)采(cai)(cai)用(yong)開關(guan)電(dian)(dian)源方法(fa)做(zuo)的(de)，電(dian)(dian)源適配器(qi)也(ye)是(shi)(shi)采(cai)(cai)用(yong)變(bian)電(dian)(dian)器(qi)輸出和線形(xing)整(zheng)流器(qi)穩壓管輸出的(de)。

　　開關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)是一(yi)(yi)種將(jiang)電(dian)(dian)(dian)(dian)壓220V交流電(dian)(dian)(dian)(dian)流變(bian)為(wei)底壓交流電(dian)(dian)(dian)(dian)的(de)一(yi)(yi)種方法，差別于(yu)傳統(tong)式(shi)工頻變(bian)壓器，一(yi)(yi)般(ban)采(cai)用(yong)這類電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)開關(guan)(guan)(guan)轉換工作(zuo)電(dian)(dian)(dian)(dian)壓技(ji)術性的(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)稱(cheng)之為(wei)開關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)。電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)塊就是說一(yi)(yi)種中小型的(de)開關(guan)(guan)(guan)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)，關(guan)(guan)(guan)鍵(jian)分(fen)成AC-DC電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)塊和DC-DC電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)模(mo)塊。由于(yu)重量(liang)輕，一(yi)(yi)般(ban)得加外場元(yuan)器件(jian)應用(yong)，關(guan)(guan)(guan)鍵(jian)做為(wei)工作(zuo)電(dian)(dian)(dian)(dian)壓變(bian)換功效，為(wei)系統(tong)軟件(jian)供(gong)電(dian)(dian)(dian)(dian)系統(tong)，不具備電(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)作(zuo)用(yong)。

　　電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)(pei)(pei)(pei)器(qi)就是指(zhi)給(gei)機(ji)器(qi)設(she)備出示電(dian)(dian)(dian)(dian)磁能(neng)的電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)，如臺式電(dian)(dian)(dian)(dian)腦(nao)主機(ji)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)、復印機(ji)電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)、顯示屏電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)，這(zhe)種不叫充電(dian)(dian)(dian)(dian)器(qi)。電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)(pei)(pei)(pei)器(qi)具備容積較小(xiao)、綠(lv)色環保、多(duo)種安全性維護、使用期長、運用覆(fu)蓋面廣(guang)等特性，大(da)概可(ke)分(fen)成桌面型電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)(pei)(pei)(pei)器(qi)、直插式電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)(pei)(pei)(pei)器(qi)、多(duo)通(tong)道電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)(pei)(pei)(pei)器(qi)、USB電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)(pei)(pei)(pei)器(qi)這(zhe)些。電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)(pei)(pei)(pei)器(qi)包含充電(dian)(dian)(dian)(dian)器(qi)，可(ke)是充電(dian)(dian)(dian)(dian)器(qi)不包含電(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)配(pei)(pei)(pei)(pei)器(qi)。

　　充電(dian)(dian)(dian)(dian)器(qi)就(jiu)是(shi)指只給電(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)的(de)電(dian)(dian)(dian)(dian)源，是(shi)在開關電(dian)(dian)(dian)(dian)源的(de)基本上(shang)再加一(yi)個電(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)檢驗和控制電(dian)(dian)(dian)(dian)路，如恒流(liu)、反接、浮充、均充工作電(dian)(dian)(dian)(dian)壓(ya)的(de)全自動調(diao)節(jie)這些。普遍的(de)是(shi)USB充電(dian)(dian)(dian)(dian)器(qi)，也有手機上(shang)充電(dian)(dian)(dian)(dian)器(qi)、筆記本電(dian)(dian)(dian)(dian)腦(nao)電(dian)(dian)(dian)(dian)源、電(dian)(dian)(dian)(dian)動車充電(dian)(dian)(dian)(dian)器(qi)這些，充電(dian)(dian)(dian)(dian)器(qi)一(yi)般是(shi)將220V轉換(huan)為適合的(de)交流(liu)電(dian)(dian)(dian)(dian)壓(ya)，依據電(dian)(dian)(dian)(dian)池(chi)的(de)種類，會提升一(yi)個電(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)管(guan)理方(fang)法(fa)電(dian)(dian)(dian)(dian)源電(dian)(dian)(dian)(dian)路，具備對(dui)電(dian)(dian)(dian)(dian)池(chi)開展電(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)的(de)作用。

　　一直供(gong)電(dian)系統給機(ji)器(qi)設(she)備的(de)供(gong)電(dian)系統電(dian)源一般都叫電(dian)源適(shi)(shi)配器(qi)，像(xiang)給沈陽監(jian)控(kong)攝像(xiang)頭或(huo)電(dian)子產品，與usb充電(dian)器(qi)在設(she)計方案規(gui)定(ding)中大不一樣(yang)。usb充電(dian)器(qi)規(gui)定(ding)考慮不一樣(yang)頻率(lv)段(duan)不一樣(yang)電(dian)流量的(de)必須，而監(jian)控(kong)器(qi)、監(jian)控(kong)攝像(xiang)頭等機(ji)器(qi)設(she)備供(gong)電(dian)系統的(de)電(dian)源適(shi)(shi)配器(qi)則偏重電(dian)流量平(ping)穩。

　　電(dian)源(yuan)(yuan)適(shi)(shi)配器(qi)關鍵適(shi)(shi)用中小(xiao)型(xing)家(jia)用電(dian)器(qi)、電(dian)子器(qi)件產(chan)品，大部(bu)(bu)分是恒壓源(yuan)(yuan)，維持(chi)輸出工作電(dian)壓穩定，隨機器(qi)設備(bei)負荷功率而全(quan)(quan)自動調(diao)節輸出電(dian)流(liu)量。而開(kai)關電(dian)源(yuan)(yuan)是操縱全(quan)(quan)部(bu)(bu)電(dian)源(yuan)(yuan)開(kai)關的變換電(dian)流(liu)量機器(qi)設備(bei)，適(shi)(shi)用全(quan)(quan)部(bu)(bu)的電(dian)子產(chan)品。