單相穩(wen)壓(ya)器由(you)接(jie)觸式(shi)自(zi)(zi)耦調(diao)壓(ya)器、伺服式(shi)電(dian)(dian)動(dong)(dong)機、自(zi)(zi)動(dong)(dong)控(kong)制(zhi)(zhi)電(dian)(dian)路(lu)(lu)等(deng)組(zu)成(cheng)。工作原理是:當電(dian)(dian)網電(dian)(dian)壓(ya)不穩(wen)定或負載(zai)變化時,自(zi)(zi)動(dong)(dong)采樣控(kong)制(zhi)(zhi)電(dian)(dian)路(lu)(lu)發出信號并(bing)驅動(dong)(dong)伺服電(dian)(dian)機,調(diao)整自(zi)(zi)耦調(diao)壓(ya)器碳(tan)刷的位置,使輸出電(dian)(dian)壓(ya)調(diao)整到(dao)額定值并(bing)達到(dao)穩(wen)定狀態(tai)具有過壓(ya)、欠壓(ya)、過載(zai)、旁路(lu)(lu)、防(fang)雷等(deng)保護功(gong)能和波形不失(shi)、性能可靠(kao)、可長(chang)期運行(xing)等特點(dian)。能確(que)保用(yong)電(dian)設備正常運行(xing)。廣泛(fan)用(yong)于(yu)任何用(yong)電(dian)場所(suo),是(shi)一種(zhong)理想的(de)穩(wen)壓電(dian)源。這種(zhong)穩(wen)壓器不同于(yu)自耦變壓器的(de)主要是(shi)輸(shu)入點(dian)A是(shi)可以(yi)由0V到250V之間任意(yi)滑動。這樣就可以(yi)隨時調整輸(shu)入電(dian)壓的(de)輸(shu)入點(dian)來(lai)滿足輸(shu)出電(dian)壓的(de)恒定。一般我們(men)把輸(shu)入側A點(dian)叫做滑臂(bei),它由電(dian)機(ji)通過(guo)減速裝置來(lai)驅動,電(dian)機(ji)的(de)轉向由穩(wen)壓控制電(dian)路來(lai)控制完成。