電源模塊、電源適配器和(he)充電(dian)(dian)器(qi)(qi)三者全是電(dian)(dian)源，只不(bu)(bu)過在主要用(yong)途上大(da)不(bu)(bu)一樣，他(ta)們全是采(cai)用(yong)開關(guan)電(dian)(dian)源方式的。可是小量充電(dian)(dian)器(qi)(qi)并不(bu)(bu)是采(cai)用(yong)開關(guan)電(dian)(dian)源方法(fa)做的，電(dian)(dian)源適配(pei)器(qi)(qi)也是采(cai)用(yong)變電(dian)(dian)器(qi)(qi)輸出(chu)和(he)線形(xing)整流器(qi)(qi)穩壓管輸出(chu)的。

　　開關(guan)(guan)電(dian)(dian)(dian)源(yuan)是一(yi)種將電(dian)(dian)(dian)壓(ya)220V交流電(dian)(dian)(dian)流變(bian)為(wei)底壓(ya)交流電(dian)(dian)(dian)的一(yi)種方(fang)法，差(cha)別于傳統式工(gong)(gong)頻變(bian)壓(ya)器(qi)，一(yi)般(ban)采用(yong)這類電(dian)(dian)(dian)源(yuan)開關(guan)(guan)轉換工(gong)(gong)作(zuo)電(dian)(dian)(dian)壓(ya)技術(shu)性的電(dian)(dian)(dian)源(yuan)稱(cheng)之為(wei)開關(guan)(guan)電(dian)(dian)(dian)源(yuan)。電(dian)(dian)(dian)源(yuan)模(mo)塊(kuai)就是說一(yi)種中小型(xing)的開關(guan)(guan)電(dian)(dian)(dian)源(yuan)，關(guan)(guan)鍵(jian)分成(cheng)AC-DC電(dian)(dian)(dian)源(yuan)模(mo)塊(kuai)和DC-DC電(dian)(dian)(dian)源(yuan)模(mo)塊(kuai)。由于重量輕，一(yi)般(ban)得加(jia)外場元器(qi)件應用(yong)，關(guan)(guan)鍵(jian)做為(wei)工(gong)(gong)作(zuo)電(dian)(dian)(dian)壓(ya)變(bian)換功效，為(wei)系統軟件供(gong)電(dian)(dian)(dian)系統，不具備電(dian)(dian)(dian)池(chi)充(chong)電(dian)(dian)(dian)作(zuo)用(yong)。

　　電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)(shi)(shi)(shi)(shi)配(pei)器(qi)(qi)就是指給機器(qi)(qi)設備出示(shi)電(dian)(dian)(dian)(dian)(dian)磁能的電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)，如(ru)臺式(shi)電(dian)(dian)(dian)(dian)(dian)腦主機電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)、復印機電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)、顯(xian)示(shi)屏電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)，這種不叫充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)。電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)(shi)(shi)(shi)(shi)配(pei)器(qi)(qi)具備容(rong)積較小、綠色環保、多種安(an)全(quan)性(xing)維護、使用期長、運(yun)用覆蓋面(mian)廣(guang)等特(te)性(xing)，大(da)概可分成桌(zhuo)面(mian)型電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)(shi)(shi)(shi)(shi)配(pei)器(qi)(qi)、直插式(shi)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)(shi)(shi)(shi)(shi)配(pei)器(qi)(qi)、多通道(dao)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)(shi)(shi)(shi)(shi)配(pei)器(qi)(qi)、USB電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)(shi)(shi)(shi)(shi)配(pei)器(qi)(qi)這些。電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)(shi)(shi)(shi)(shi)配(pei)器(qi)(qi)包含充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)，可是充(chong)電(dian)(dian)(dian)(dian)(dian)器(qi)(qi)不包含電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)適(shi)(shi)(shi)(shi)(shi)配(pei)器(qi)(qi)。

　　充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器就是(shi)(shi)(shi)指(zhi)只給電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)，是(shi)(shi)(shi)在開(kai)關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)基本上(shang)再(zai)加一個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)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)(lu)，如恒流、反(fan)接、浮充(chong)(chong)、均充(chong)(chong)工作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)全自動調節(jie)這些(xie)。普遍的(de)(de)是(shi)(shi)(shi)USB充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器，也有手(shou)機上(shang)充(chong)(chong)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(yuan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動車充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器這些(xie)，充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器一般是(shi)(shi)(shi)將220V轉(zhuan)換為適(shi)合的(de)(de)交流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)，依據電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)的(de)(de)種(zhong)類(lei)，會(hui)提(ti)升一個電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)管理(li)方法電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)(lu)，具備對電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)開(kai)展電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)池(chi)充(chong)(chong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)的(de)(de)作(zuo)用。

　　一(yi)直供(gong)電(dian)(dian)(dian)系(xi)統(tong)給機器設備的(de)供(gong)電(dian)(dian)(dian)系(xi)統(tong)電(dian)(dian)(dian)源(yuan)一(yi)般(ban)都叫電(dian)(dian)(dian)源(yuan)適配器，像給沈陽監(jian)控(kong)(kong)攝像頭(tou)(tou)或電(dian)(dian)(dian)子產(chan)品，與usb充電(dian)(dian)(dian)器在(zai)設計方案規定中大(da)不(bu)一(yi)樣(yang)。usb充電(dian)(dian)(dian)器規定考慮不(bu)一(yi)樣(yang)頻率段不(bu)一(yi)樣(yang)電(dian)(dian)(dian)流量(liang)的(de)必須(xu)，而監(jian)控(kong)(kong)器、監(jian)控(kong)(kong)攝像頭(tou)(tou)等機器設備供(gong)電(dian)(dian)(dian)系(xi)統(tong)的(de)電(dian)(dian)(dian)源(yuan)適配器則偏重電(dian)(dian)(dian)流量(liang)平(ping)穩。

　　電(dian)源適(shi)配器關鍵適(shi)用(yong)中(zhong)小(xiao)型家用(yong)電(dian)器、電(dian)子器件(jian)產品，大部(bu)分是(shi)恒壓源，維持(chi)輸(shu)出工作電(dian)壓穩定(ding)，隨(sui)機器設備負荷功率而全(quan)自動(dong)調節(jie)輸(shu)出電(dian)流(liu)量。而開關電(dian)源是(shi)操縱全(quan)部(bu)電(dian)源開關的變換電(dian)流(liu)量機器設備，適(shi)用(yong)全(quan)部(bu)的電(dian)子產品。