將磁(ci)放(fang)大器(qi)和自耦(ou)變(bian)(bian)壓(ya)(ya)(ya)器(qi)串聯而成(cheng)，利用(yong)電(dian)(dian)子線路(lu)改變(bian)(bian)磁(ci)放(fang)大器(qi)的(de)(de)阻抗以(yi)穩(wen)(wen)(wen)(wen)(wen)(wen)定輸出(chu)電(dian)(dian)壓(ya)(ya)(ya)。滑動式(shi)交流(liu)(liu)穩(wen)(wen)(wen)(wen)(wen)(wen)壓(ya)(ya)(ya)器(qi)。通過(guo)(guo)改變(bian)(bian)變(bian)(bian)壓(ya)(ya)(ya)器(qi)滑動接(jie)點位置穩(wen)(wen)(wen)(wen)(wen)(wen)定輸出(chu)電(dian)(dian)壓(ya)(ya)(ya)。感(gan)應式(shi)交流(liu)(liu)穩(wen)(wen)(wen)(wen)(wen)(wen)壓(ya)(ya)(ya)器(qi)穩(wen)(wen)(wen)(wen)(wen)(wen)壓(ya)(ya)(ya)電(dian)(dian)源(yuan)(yuan)(yuan)運用(yong)過(guo)(guo)程(cheng)：電(dian)(dian)源(yuan)(yuan)(yuan)銜接(jie)。將穩(wen)(wen)(wen)(wen)(wen)(wen)壓(ya)(ya)(ya)電(dian)(dian)源(yuan)(yuan)(yuan)銜接(jie)上市電(dian)(dian)。開啟(qi)電(dian)(dian)源(yuan)(yuan)(yuan)。在不接(jie)負載的(de)(de)情(qing)況下，按下電(dian)(dian)源(yuan)(yuan)(yuan)總開關(guan)(guan)（power），然后(hou)開啟(qi)電(dian)(dian)源(yuan)(yuan)(yuan)直(zhi)流(liu)(liu)輸出(chu)開關(guan)(guan)（output），使電(dian)(dian)源(yuan)(yuan)(yuan)正常輸出(chu)作(zuo)業（一些簡(jian)略的(de)(de)可調穩(wen)(wen)(wen)(wen)(wen)(wen)壓(ya)(ya)(ya)電(dian)(dian)源(yuan)(yuan)(yuan)只有(you)總電(dian)(dian)源(yuan)(yuan)(yuan)開關(guan)(guan)，沒有(you)獨(du)立的(de)(de)直(zhi)流(liu)(liu)輸出(chu)開關(guan)(guan)）。一般的(de)(de)穩(wen)(wen)(wen)(wen)(wen)(wen)壓(ya)(ya)(ya)電(dian)(dian)源(yuan)(yuan)(yuan)都是用(yong)220V的(de)(de)電(dian)(dian)作(zuo)為電(dian)(dian)源(yuan)(yuan)(yuan)，經過(guo)(guo)變(bian)(bian)壓(ya)(ya)(ya)整流(liu)(liu)濾波(bo)后(hou)輸送給(gei)穩(wen)(wen)(wen)(wen)(wen)(wen)壓(ya)(ya)(ya)電(dian)(dian)路(lu)進行穩(wen)(wen)(wen)(wen)(wen)(wen)壓(ya)(ya)(ya)，終(zhong)成(cheng)為穩(wen)(wen)(wen)(wen)(wen)(wen)定的(de)(de)直(zhi)流(liu)(liu)電(dian)(dian)源(yuan)(yuan)(yuan)。

直流(liu)穩(wen)壓(ya)(ya)(ya)電(dian)源的(de)(de)設計(ji)通常都是由、整(zheng)流(liu)、濾波、穩(wen)壓(ya)(ya)(ya)這四個環節構(gou)成(cheng)的(de)(de)。而其中的(de)(de)變(bian)(bian)壓(ya)(ya)(ya)器(qi)起(qi)到把電(dian)網220V的(de)(de)交流(liu)電(dian)變(bian)(bian)成(cheng)整(zheng)流(liu)電(dian)路我(wo)需在的(de)(de)電(dian)壓(ya)(ya)(ya)，即第二(er)步中所(suo)需的(de)(de)，然后(hou)整(zheng) 流(liu)電(dian)路再將交流(liu)電(dian)轉換成(cheng)單方脈動(dong)的(de)(de)直流(liu)電(dian)，通過(guo)濾波電(dian)路，后(hou)經過(guo)穩(wen)壓(ya)(ya)(ya)器(qi)，輸出所(suo)需的(de)(de)穩(wen)定(ding)電(dian)壓(ya)(ya)(ya)。

將交流穩壓(ya)(ya)器的(de)輸(shu)(shu)大(da)端與市(shi)電(dian)相(xiang)接后(hou)，在(zai)T的(de)W4、W5繞組上(shang)產生了感(gan)應電(dian)壓(ya)(ya)。該電(dian)壓(ya)(ya)經(jing)VDl-VD4整(zheng)流及Cl、C2濾波后(hou)，為(wei)IC和Vl、V2等提(ti)(ti)供 士l2V不穩定工(gong)(gong)作(zuo)電(dian)壓(ya)(ya)。+l2V電(dian)壓(ya)(ya)還有其(qi)他作(zuo)用(yong)。經(jing)Rl-R3分壓(ya)(ya)、VS穩壓(ya)(ya)后(hou)，分別為(wei)Nl-N3的(de)反相(xiang)輸(shu)(shu)入(ru)(ru)(ru)端提(ti)(ti)供基準電(dian)壓(ya)(ya);為(wei)過電(dian)壓(ya)(ya)保護電(dian)路申的(de)K和V3提(ti)(ti)供工(gong)(gong)作(zuo)電(dian)源;經(jing)R4、RP2、R6分壓(ya)(ya)后(hou)，為(wei)Nl和N2的(de)正(zheng)相(xiang)輸(shu)(shu)入(ru)(ru)(ru)端提(ti)(ti)供檢測(ce)電(dian)壓(ya)(ya);經(jing)R7、RPl、R5分壓(ya)(ya)后(hou)，為(wei)N3的(de)正(zheng)相(xiang)輸(shu)(shu)入(ru)(ru)(ru)端提(ti)(ti)供檢測(ce)電(dian)壓(ya)(ya)。

穩(wen)(wen)(wen)壓(ya)器(qi)(qi)是(shi)一種能夠(gou)自動(dong)(dong)(dong)調整輸出電(dian)(dian)(dian)壓(ya)的(de)供電(dian)(dian)(dian)設備，并聯穩(wen)(wen)(wen)壓(ya)電(dian)(dian)(dian)路，它的(de)作用(yong)(yong)就是(shi)將波(bo)動(dong)(dong)(dong)較大或(huo)者達不(bu)到(dao)電(dian)(dian)(dian)器(qi)(qi)設備要求的(de)電(dian)(dian)(dian)源電(dian)(dian)(dian)壓(ya)調整到(dao)它的(de)設定(ding)(ding)值范圍(wei)內，使(shi)各種電(dian)(dian)(dian)器(qi)(qi)設備能在額定(ding)(ding)的(de)工作電(dian)(dian)(dian)壓(ya)下正常工作。適(shi)應于電(dian)(dian)(dian)源電(dian)(dian)(dian)壓(ya)過低或(huo)過高、波(bo)動(dong)(dong)(dong)幅度大的(de)低壓(ya)配電(dian)(dian)(dian)網末端的(de)用(yong)(yong)戶及負載變(bian)動(dong)(dong)(dong)大的(de)用(yong)(yong)電(dian)(dian)(dian)設備，特(te)別適(shi)用(yong)(yong)于一切對電(dian)(dian)(dian)網波(bo)形(xing)要求高的(de)穩(wen)(wen)(wen)壓(ya)用(yong)(yong)電(dian)(dian)(dian)場所。大功率補償式電(dian)(dian)(dian)力(li)穩(wen)(wen)(wen)壓(ya)器(qi)(qi)可接火(huo)力(li)、水力(li)、小型發(fa)電(dian)(dian)(dian)機(ji)。