電源模塊、電源適配器和充(chong)電(dian)器(qi)(qi)三者(zhe)全是(shi)電(dian)源，只不過在主要用途上(shang)大不一(yi)樣(yang)，他們全是(shi)采(cai)用開(kai)關電(dian)源方式的(de)。可是(shi)小量充(chong)電(dian)器(qi)(qi)并不是(shi)采(cai)用開(kai)關電(dian)源方法做的(de)，電(dian)源適配器(qi)(qi)也是(shi)采(cai)用變電(dian)器(qi)(qi)輸出和線形(xing)整流器(qi)(qi)穩(wen)壓管輸出的(de)。

　　開關電(dian)(dian)(dian)源(yuan)(yuan)是(shi)一(yi)(yi)種將(jiang)電(dian)(dian)(dian)壓220V交(jiao)流(liu)電(dian)(dian)(dian)流(liu)變(bian)為(wei)底壓交(jiao)流(liu)電(dian)(dian)(dian)的(de)一(yi)(yi)種方法，差別于傳統式(shi)工頻變(bian)壓器(qi)，一(yi)(yi)般(ban)采用(yong)這類電(dian)(dian)(dian)源(yuan)(yuan)開關轉換(huan)工作(zuo)電(dian)(dian)(dian)壓技術性(xing)的(de)電(dian)(dian)(dian)源(yuan)(yuan)稱之為(wei)開關電(dian)(dian)(dian)源(yuan)(yuan)。電(dian)(dian)(dian)源(yuan)(yuan)模塊(kuai)就是(shi)說(shuo)一(yi)(yi)種中小型的(de)開關電(dian)(dian)(dian)源(yuan)(yuan)，關鍵(jian)分成AC-DC電(dian)(dian)(dian)源(yuan)(yuan)模塊(kuai)和DC-DC電(dian)(dian)(dian)源(yuan)(yuan)模塊(kuai)。由于重量輕，一(yi)(yi)般(ban)得加外場元器(qi)件(jian)應用(yong)，關鍵(jian)做為(wei)工作(zuo)電(dian)(dian)(dian)壓變(bian)換(huan)功效，為(wei)系(xi)統軟件(jian)供電(dian)(dian)(dian)系(xi)統，不具備(bei)電(dian)(dian)(dian)池充電(dian)(dian)(dian)作(zuo)用(yong)。

　　電(dian)(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)(qi)就是指給(gei)機器(qi)(qi)(qi)設備(bei)出示(shi)電(dian)(dian)磁能的電(dian)(dian)源(yuan)，如臺式電(dian)(dian)腦主機電(dian)(dian)源(yuan)、復印機電(dian)(dian)源(yuan)、顯示(shi)屏(ping)電(dian)(dian)源(yuan)，這種不叫充電(dian)(dian)器(qi)(qi)(qi)。電(dian)(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)(qi)具備(bei)容(rong)積較小、綠(lv)色環保、多(duo)種安(an)全性維(wei)護、使用(yong)期長、運(yun)用(yong)覆蓋面廣等特(te)性，大概(gai)可分成(cheng)桌面型(xing)電(dian)(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)(qi)、直插式電(dian)(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)(qi)、多(duo)通道電(dian)(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)(qi)、USB電(dian)(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)(qi)這些。電(dian)(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)(qi)包含(han)充電(dian)(dian)器(qi)(qi)(qi)，可是充電(dian)(dian)器(qi)(qi)(qi)不包含(han)電(dian)(dian)源(yuan)適(shi)(shi)(shi)配(pei)(pei)器(qi)(qi)(qi)。

　　充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器就是(shi)指只(zhi)給電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，是(shi)在(zai)開關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)基本上(shang)再加一(yi)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)檢驗和(he)控制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，如恒流(liu)(liu)、反(fan)接(jie)、浮充(chong)(chong)(chong)、均充(chong)(chong)(chong)工作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)全自動調節這(zhe)些(xie)(xie)。普遍(bian)的(de)(de)是(shi)USB充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器，也有手機上(shang)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器、筆記本電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)腦電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動車充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器這(zhe)些(xie)(xie)，充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器一(yi)般(ban)是(shi)將220V轉換(huan)為適合的(de)(de)交流(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，依據電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)的(de)(de)種類，會提升(sheng)一(yi)個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)管理方法電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，具備對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)開展電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)(chi)充(chong)(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)作用。

　　一(yi)直供(gong)電(dian)(dian)系統給機器(qi)設備(bei)的(de)供(gong)電(dian)(dian)系統電(dian)(dian)源一(yi)般(ban)都叫電(dian)(dian)源適配(pei)器(qi)，像給沈陽監(jian)控攝(she)像頭或電(dian)(dian)子產品，與usb充電(dian)(dian)器(qi)在(zai)設計方案規定(ding)中大不(bu)一(yi)樣(yang)。usb充電(dian)(dian)器(qi)規定(ding)考慮不(bu)一(yi)樣(yang)頻率(lv)段不(bu)一(yi)樣(yang)電(dian)(dian)流量(liang)的(de)必須，而監(jian)控器(qi)、監(jian)控攝(she)像頭等機器(qi)設備(bei)供(gong)電(dian)(dian)系統的(de)電(dian)(dian)源適配(pei)器(qi)則偏重電(dian)(dian)流量(liang)平穩。

　　電源(yuan)(yuan)(yuan)適(shi)配器關鍵適(shi)用中小型家用電器、電子器件產品(pin)，大部(bu)(bu)分是恒壓(ya)源(yuan)(yuan)(yuan)，維持輸出(chu)工(gong)作電壓(ya)穩定，隨機(ji)器設備負(fu)荷功率而(er)全(quan)自動調節輸出(chu)電流(liu)量。而(er)開關電源(yuan)(yuan)(yuan)是操縱全(quan)部(bu)(bu)電源(yuan)(yuan)(yuan)開關的(de)變換(huan)電流(liu)量機(ji)器設備，適(shi)用全(quan)部(bu)(bu)的(de)電子產品(pin)。