在如今，儀表儀器機器設備在特性上更為可以信賴，作用上不斷提高，應用上自動化技術水平也愈來愈高。而這種電子信息技術以及運用飛速發展都不可或缺電源適配器，電源適配器在電子計算機、通訊、航空航天、家用電器等層面都獲得了愈來愈普遍的運用，電源適配器的種類也愈來愈多。電源適配器常有什么分類?

　　1、按調配方法分類

　　①脈沖(chong)寬度調制型(xing)開關穩壓(ya)電(dian)源適配器(qi)。震蕩頻率保(bao)持一(yi)致，根(gen)據更改(gai)(gai)單脈沖(chong)總寬來(lai)更改(gai)(gai)和調整輸(shu)出工作電(dian)壓(ya)的尺寸(cun)，有時候根(gen)據抽(chou)樣(yang)電(dian)路、藕合電(dian)路等組(zu)成(cheng)意見反饋閉(bi)環控制控制回路來(lai)平穩輸(shu)出工作電(dian)壓(ya)的力度。

　　②頻率(lv)(lv)調配型開關(guan)穩壓電(dian)源適配器。占空比保(bao)持(chi)一致，根據(ju)更改(gai)震(zhen)蕩器的震(zhen)蕩頻率(lv)(lv)來(lai)調整(zheng)和平穩輸出工(gong)作電(dian)壓的力度。

　　③混和(he)調配型開(kai)關穩壓電源適配器。根據調整(zheng)通斷時間的震蕩頻率(lv)來進行調整(zheng)和(he)平穩輸出工作電壓的力(li)度。

　　2、按電路構造分類

　　①單件式(shi)開關(guan)穩壓(ya)(ya)電(dian)源適(shi)配器。全(quan)部開關(guan)穩壓(ya)(ya)電(dian)源適(shi)配器電(dian)路全(quan)是選用(yong)吸收合并電(dian)子器件構(gou)成(cheng)的，它(ta)的構(gou)造比較(jiao)繁(fan)雜，可信性較(jiao)弱(ruo)。

　　②集(ji)(ji)成電(dian)(dian)(dian)(dian)(dian)路(lu)式開關穩壓電(dian)(dian)(dian)(dian)(dian)源適(shi)(shi)配器。全部開關穩壓電(dian)(dian)(dian)(dian)(dian)源適(shi)(shi)配器電(dian)(dian)(dian)(dian)(dian)路(lu)或(huo)電(dian)(dian)(dian)(dian)(dian)路(lu)的(de)一部分是(shi)由集(ji)(ji)成電(dian)(dian)(dian)(dian)(dian)路(lu)構(gou)成的(de)，這類集(ji)(ji)成電(dian)(dian)(dian)(dian)(dian)路(lu)一般為(wei)厚(hou)膜電(dian)(dian)(dian)(dian)(dian)路(lu)。有(you)的(de)厚(hou)膜集(ji)(ji)成電(dian)(dian)(dian)(dian)(dian)路(lu)中包含(han)電(dian)(dian)(dian)(dian)(dian)源開關管，有(you)的(de)則不包含(han)電(dian)(dian)(dian)(dian)(dian)源開關管。這類電(dian)(dian)(dian)(dian)(dian)源開關電(dian)(dian)(dian)(dian)(dian)源適(shi)(shi)配器的(de)特性是(shi)電(dian)(dian)(dian)(dian)(dian)路(lu)構(gou)造簡易，調(diao)節便(bian)捷(jie)，可(ke)信性高(gao)。

　　電(dian)源適配器的分類也有(you)其他的一些分類方式 ，這兒也不一一詳細介紹(shao)了!