穩壓(ya)(ya)電(dian)源(yuan)是(shi)變壓(ya)(ya)器，它將(jiang)電(dian)網220V交(jiao)流(liu)(liu)電(dian)壓(ya)(ya)變換成(cheng)符合需要的(de)交(jiao)流(liu)(liu)電(dian)壓(ya)(ya)，并(bing)送給整(zheng)流(liu)(liu)電(dian)路(lu)(lu)(lu)，變壓(ya)(ya)器的(de)變比(bi)由(you)變壓(ya)(ya)器的(de)副邊電(dian)壓(ya)(ya)確定。整(zheng)流(liu)(liu)濾(lv)波電(dian)路(lu)(lu)(lu):整(zheng)流(liu)(liu)電(dian)路(lu)(lu)(lu)將(jiang)交(jiao)流(liu)(liu)電(dian)壓(ya)(ya)Ui變換成(cheng)脈(mo)動(dong)的(de)直(zhi)流(liu)(liu)電(dian)壓(ya)(ya)。再經濾(lv)波電(dian)路(lu)(lu)(lu)濾(lv)除較(jiao)大(da)(da)的(de)紋波成(cheng)分(fen)(fen)，輸(shu)出(chu)紋波較(jiao)小的(de)直(zhi)流(liu)(liu)電(dian)壓(ya)(ya)U1。常用的(de)整(zheng)流(liu)(liu)濾(lv)波電(dian)路(lu)(lu)(lu)有全波整(zheng)流(liu)(liu)濾(lv)波、橋(qiao)式(shi)整(zheng)流(liu)(liu)濾(lv)波等。濾(lv)波電(dian)路(lu)(lu)(lu):可以將(jiang)整(zheng)流(liu)(liu)電(dian)路(lu)(lu)(lu)輸(shu)出(chu)電(dian)壓(ya)(ya)中的(de)交(jiao)流(liu)(liu)成(cheng)分(fen)(fen)大(da)(da)部(bu)分(fen)(fen)加以濾(lv)除，從而得(de)到比(bi)較(jiao)平(ping)滑的(de)直(zhi)流(liu)(liu)電(dian)壓(ya)(ya)各濾(lv)波電(dian)容C滿足RL-C，(3~5)T/2，或(huo)中T為(wei)輸(shu)入交(jiao)流(liu)(liu)信號周期，RL為(wei)整(zheng)流(liu)(liu)濾(lv)波電(dian)路(lu)(lu)(lu)的(de)等效負載電(dian)阻。

穩(wen)(wen)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源是為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)提供工(gong)作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)要有穩(wen)(wen)定(ding)的(de)工(gong)作狀(zhuang)態，首(shou)先支持它(ta)工(gong)作的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源必須(xu)穩(wen)(wen)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動自行車自行車控制器電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)常用7824、7815、7812、7806、78L06、7805等(deng)，獲(huo)得(de)直流24V、15V、12V、5V 等(deng)穩(wen)(wen)壓(ya)工(gong)作電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源一般的(de)穩(wen)(wen)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源都是用220V的(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)作為電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源，經過(guo)變壓(ya)整(zheng)流濾波后輸送給穩(wen)(wen)壓(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)進行穩(wen)(wen)壓(ya)，終成為穩(wen)(wen)定(ding)的(de)直流電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源。

直流(liu)(liu)穩(wen)(wen)壓(ya)電(dian)源(yuan)的(de)(de)(de)設計(ji)通(tong)常(chang)都(dou)是由、整流(liu)(liu)、濾波、穩(wen)(wen)壓(ya)這(zhe)四(si)個環節構成(cheng)的(de)(de)(de)。而(er)其(qi)中的(de)(de)(de)變(bian)壓(ya)器起到把電(dian)網220V的(de)(de)(de)交流(liu)(liu)電(dian)變(bian)成(cheng)整流(liu)(liu)電(dian)路我需(xu)在的(de)(de)(de)電(dian)壓(ya)，變(bian)頻穩(wen)(wen)壓(ya)電(dian)源(yuan)，即第二步中所需(xu)的(de)(de)(de)，然后(hou)整 流(liu)(liu)電(dian)路再將交流(liu)(liu)電(dian)轉(zhuan)換成(cheng)單方脈動的(de)(de)(de)直流(liu)(liu)電(dian)，通(tong)過濾波電(dian)路，后(hou)經過穩(wen)(wen)壓(ya)器，輸出所需(xu)的(de)(de)(de)穩(wen)(wen)定電(dian)壓(ya)。

串聯型穩壓(ya)電(dian)(dian)(dian)源(yuan)的(de)(de)設計(ji)是由變壓(ya)器(qi)、整(zheng)流(liu)濾(lv)波、穩壓(ya)電(dian)(dian)(dian)路、保護電(dian)(dian)(dian)路四(si)個環節組成。穩壓(ya)電(dian)(dian)(dian)源(yuan)是為(wei)電(dian)(dian)(dian)路提供工(gong)(gong)作電(dian)(dian)(dian)壓(ya)的(de)(de)，電(dian)(dian)(dian)路要有穩定的(de)(de)工(gong)(gong)作狀態，首先支持(chi)它工(gong)(gong)作的(de)(de)電(dian)(dian)(dian)源(yuan)必須穩定電(dian)(dian)(dian)動自行車自行車控制器(qi)電(dian)(dian)(dian)路常用7824、7815、7812、7806、78L06、7805等，獲得直流(liu)24V、15V、12V、5V 等穩壓(ya)工(gong)(gong)作電(dian)(dian)(dian)源(yuan)關(guan)機(ji)：做完(wan)實(shi)驗(yan)后先將全(quan)部的(de)(de)穩壓(ya)、穩流(liu)旋鈕旋轉(zhuan)到小位置，再關(guan)閉穩壓(ya)電(dian)(dian)(dian)源(yuan)開(kai)關(guan)，后再拆連接(jie)電(dian)(dian)(dian)路所(suo)用的(de)(de)導線。注意：穩壓(ya)電(dian)(dian)(dian)源(yuan)的(de)(de)開(kai)關(guan)不能作為(wei)電(dian)(dian)(dian)路開(kai)關(guan)隨意開(kai)關(guan)。