電源模塊、電源適配器和充電器(qi)三者(zhe)全是(shi)電源，只不(bu)過在主要用(yong)(yong)途上大不(bu)一(yi)樣，他(ta)們全是(shi)采(cai)用(yong)(yong)開關電源方(fang)式的(de)。可是(shi)小量充電器(qi)并不(bu)是(shi)采(cai)用(yong)(yong)開關電源方(fang)法做的(de)，電源適(shi)配(pei)器(qi)也(ye)是(shi)采(cai)用(yong)(yong)變電器(qi)輸出和線形整(zheng)流器(qi)穩(wen)壓(ya)管輸出的(de)。

　　開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源是一(yi)(yi)種將電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)220V交流電(dian)(dian)(dian)(dian)(dian)(dian)流變(bian)為(wei)底壓(ya)(ya)交流電(dian)(dian)(dian)(dian)(dian)(dian)的一(yi)(yi)種方(fang)法(fa)，差別于傳統(tong)式工頻變(bian)壓(ya)(ya)器(qi)，一(yi)(yi)般(ban)采用(yong)這類(lei)電(dian)(dian)(dian)(dian)(dian)(dian)源開(kai)關轉換(huan)工作電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)技術(shu)性的電(dian)(dian)(dian)(dian)(dian)(dian)源稱之為(wei)開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源。電(dian)(dian)(dian)(dian)(dian)(dian)源模(mo)塊就是說一(yi)(yi)種中小型的開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)源，關鍵分成(cheng)AC-DC電(dian)(dian)(dian)(dian)(dian)(dian)源模(mo)塊和DC-DC電(dian)(dian)(dian)(dian)(dian)(dian)源模(mo)塊。由于重(zhong)量輕，一(yi)(yi)般(ban)得加外(wai)場(chang)元(yuan)器(qi)件應用(yong)，關鍵做為(wei)工作電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)變(bian)換(huan)功效，為(wei)系統(tong)軟件供電(dian)(dian)(dian)(dian)(dian)(dian)系統(tong)，不具備電(dian)(dian)(dian)(dian)(dian)(dian)池充電(dian)(dian)(dian)(dian)(dian)(dian)作用(yong)。

　　電(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)就是(shi)指給機(ji)(ji)器(qi)(qi)設備出(chu)示(shi)電(dian)磁(ci)能(neng)的電(dian)源(yuan)，如(ru)臺式電(dian)腦主機(ji)(ji)電(dian)源(yuan)、復(fu)印機(ji)(ji)電(dian)源(yuan)、顯示(shi)屏電(dian)源(yuan)，這(zhe)種不叫充(chong)電(dian)器(qi)(qi)。電(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)具備容積較小、綠色環保(bao)、多(duo)種安(an)全性(xing)維護、使用期長、運用覆蓋面(mian)廣等特(te)性(xing)，大概可分成(cheng)桌面(mian)型電(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)、直(zhi)插式電(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)、多(duo)通道電(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)、USB電(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)這(zhe)些。電(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)包(bao)含充(chong)電(dian)器(qi)(qi)，可是(shi)充(chong)電(dian)器(qi)(qi)不包(bao)含電(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)。

　　充(chong)(chong)電(dian)(dian)(dian)(dian)器就是(shi)指只給(gei)電(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)的(de)電(dian)(dian)(dian)(dian)源(yuan)(yuan)，是(shi)在開關電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)基本上再加(jia)一個(ge)電(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)檢驗和(he)控制電(dian)(dian)(dian)(dian)路，如恒流(liu)、反接、浮充(chong)(chong)、均(jun)充(chong)(chong)工作電(dian)(dian)(dian)(dian)壓的(de)全自動(dong)(dong)調節這(zhe)些。普(pu)遍(bian)的(de)是(shi)USB充(chong)(chong)電(dian)(dian)(dian)(dian)器，也有(you)手機上充(chong)(chong)電(dian)(dian)(dian)(dian)器、筆記(ji)本電(dian)(dian)(dian)(dian)腦電(dian)(dian)(dian)(dian)源(yuan)(yuan)、電(dian)(dian)(dian)(dian)動(dong)(dong)車(che)充(chong)(chong)電(dian)(dian)(dian)(dian)器這(zhe)些，充(chong)(chong)電(dian)(dian)(dian)(dian)器一般是(shi)將220V轉換為適(shi)合的(de)交流(liu)電(dian)(dian)(dian)(dian)壓，依據(ju)電(dian)(dian)(dian)(dian)池(chi)的(de)種類，會提升一個(ge)電(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)管(guan)理(li)方法(fa)電(dian)(dian)(dian)(dian)源(yuan)(yuan)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(chong)(chong)電(dian)(dian)(dian)(dian)的(de)作用(yong)。

　　一(yi)直供電(dian)(dian)系(xi)統給機器設(she)備的供電(dian)(dian)系(xi)統電(dian)(dian)源(yuan)一(yi)般都叫電(dian)(dian)源(yuan)適配器，像給沈(shen)陽(yang)監(jian)控(kong)攝(she)像頭或電(dian)(dian)子產(chan)品，與usb充電(dian)(dian)器在設(she)計(ji)方案規定(ding)中大(da)不(bu)一(yi)樣。usb充電(dian)(dian)器規定(ding)考慮不(bu)一(yi)樣頻率段(duan)不(bu)一(yi)樣電(dian)(dian)流量(liang)的必(bi)須，而監(jian)控(kong)器、監(jian)控(kong)攝(she)像頭等機器設(she)備供電(dian)(dian)系(xi)統的電(dian)(dian)源(yuan)適配器則偏(pian)重電(dian)(dian)流量(liang)平穩。

　　電(dian)(dian)源適配器(qi)(qi)關(guan)鍵適用(yong)中小型家用(yong)電(dian)(dian)器(qi)(qi)、電(dian)(dian)子器(qi)(qi)件產品，大部分是恒壓源，維持輸(shu)出工(gong)作電(dian)(dian)壓穩定，隨機(ji)器(qi)(qi)設(she)備負荷功率而全自動調節(jie)輸(shu)出電(dian)(dian)流量(liang)。而開(kai)關(guan)電(dian)(dian)源是操縱全部電(dian)(dian)源開(kai)關(guan)的變(bian)換電(dian)(dian)流量(liang)機(ji)器(qi)(qi)設(she)備，適用(yong)全部的電(dian)(dian)子產品。