恒流電源，也(ye)可(ke)以有另外的(de)(de)一(yi)(yi)種形式，即恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)。恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)內部(bu)在配置上(shang)有兩個不(bu)同的(de)(de)控制(zhi)(zhi)單元對于(yu)橫流(liu)(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)展開控制(zhi)(zhi)和監控，在兩個恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)控制(zhi)(zhi)中，其(qi)中一(yi)(yi)個主要是(shi)用于(yu)內部(bu)的(de)(de)穩(wen)壓(ya)(ya)(ya)(ya)的(de)(de)控制(zhi)(zhi)單元，一(yi)(yi)旦(dan)在恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)負載(zai)容量發生了(le)變化的(de)(de)時候，該控制(zhi)(zhi)器(qi)便能夠自動(dong)調節，保證(zheng)恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)(de)持(chi)續的(de)(de)穩(wen)定性能，保證(zheng)電(dian)(dian)(dian)(dian)(dian)子元件的(de)(de)生產效(xiao)率，不(bu)會給其(qi)他的(de)(de)元件在使用的(de)(de)過(guo)程中造成損失。但(dan)是(shi)恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)控制(zhi)(zhi)器(qi)在使用的(de)(de)過(guo)程中的(de)(de)前提是(shi)一(yi)(yi)定要保證(zheng)恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)必(bi)須小于(yu)恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)在之前預先設定的(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)控制(zhi)(zhi)器(qi)的(de)(de)恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)值。恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)在實際的(de)(de)運用上(shang)一(yi)(yi)般都是(shi)處于(yu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)的(de)(de)狀(zhuang)態(tai)(tai)之下(xia)，而恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)相反，恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)的(de)(de)控制(zhi)(zhi)系統一(yi)(yi)直處于(yu)休止的(de)(de)狀(zhuang)態(tai)(tai)，所以恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)在本質上(shang)并(bing)不(bu)不(bu)干擾恒(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)(ya)(ya)電(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)的(de)(de)輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)和輸(shu)(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)。

　　如果在恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)負載(zai)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)逐步減(jian)小的(de)(de)(de)(de)(de)(de)(de)情況(kuang)下(xia)，恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)所(suo)負載(zai)的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)值(zhi)一(yi)(yi)旦增加(jia)到恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)之前預(yu)先設定(ding)(ding)的(de)(de)(de)(de)(de)(de)(de)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)數(shu)量值(zhi)的(de)(de)(de)(de)(de)(de)(de)同時，恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)控制單(dan)(dan)元(yuan)便開(kai)始進(jin)行工(gong)作，控制單(dan)(dan)元(yuan)的(de)(de)(de)(de)(de)(de)(de)主要(yao)任務是(shi)在恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)負載(zai)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)出(chu)(chu)現繼續(xu)減(jian)小的(de)(de)(de)(de)(de)(de)(de)情況(kuang)下(xia)，努力保證恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)預(yu)先恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)值(zhi)保持不變，實(shi)現恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)穩定(ding)(ding)。但是(shi)這也(ye)要(yao)求恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)在使(shi)用的(de)(de)(de)(de)(de)(de)(de)過程中，需(xu)要(yao)對于輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)壓(ya)(ya)隨著負載(zai)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)的(de)(de)(de)(de)(de)(de)(de)減(jian)小而(er)隨之降低(di)，從而(er)保持恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)流(liu)(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)穩定(ding)(ding)性，這些恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)內部設立都是(shi)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)內部的(de)(de)(de)(de)(de)(de)(de)部件(jian)的(de)(de)(de)(de)(de)(de)(de)應(ying)該具備(bei)的(de)(de)(de)(de)(de)(de)(de)功能，在一(yi)(yi)旦在恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)部件(jian)工(gong)作的(de)(de)(de)(de)(de)(de)(de)情況(kuang)下(xia)，恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)流(liu)(liu)(liu)(liu)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)(de)(de)(de)(de)(de)恒(heng)(heng)(heng)(heng)(heng)(heng)(heng)壓(ya)(ya)部件(jian)將會(hui)處于休止狀態，它不再(zai)干預(yu)輸(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de)(de)(de)(de)(de)(de)高(gao)低(di)。