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穩壓器的原理

最初(chu)的電(dian)(dian)(dian)(dian)力(li)穩(wen)壓(ya)(ya)(ya)器(qi)(qi)是(shi)(shi)靠繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)的跳動穩(wen)定電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)的，當電(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)出現(xian)波動時，電(dian)(dian)(dian)(dian)力(li)穩(wen)壓(ya)(ya)(ya)器(qi)(qi)的自動糾(jiu)正電(dian)(dian)(dian)(dian)路(lu)啟動，使(shi)內部繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)動作(zuo)。迫使(shi)輸出電(dian)(dian)(dian)(dian)壓(ya)(ya)(ya)保(bao)持(chi)在設定值(zhi)附(fu)近，這種(zhong)電(dian)(dian)(dian)(dian)路(lu)優點是(shi)(shi)電(dian)(dian)(dian)(dian)路(lu)簡單，缺點是(shi)(shi)穩(wen)壓(ya)(ya)(ya)精度不(bu)高并且每(mei)一次繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)跳動換擋，都(dou)會使(shi)供電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)源發生一次瞬時的中斷并產生火花(hua)干擾(rao)。

現在的穩壓(ya)(ya)器(qi)工(gong)作原理(li)比(bi)較(jiao)(jiao)簡單，它是由(you)調壓(ya)(ya)電路、控制電路、及伺(si)服(fu)電機等部件組成，當輸入電壓(ya)(ya)或負載變(bian)化(hua)時，控制電路進行取樣、比(bi)較(jiao)(jiao)、放(fang)大，然(ran)后(hou)驅(qu)動伺(si)服(fu)電機轉動，使調壓(ya)(ya)器(qi)碳(tan)刷的位(wei)置改變(bian)，通過(guo)自(zi)動調整線圈匝數比(bi)，從而保持輸出電壓(ya)(ya)的穩定。容量較(jiao)(jiao)大的穩壓(ya)(ya)器(qi)，還采(cai)用(yong)電壓(ya)(ya)補償(chang)的原理(li)工(gong)作。

穩壓器有什么用

穩壓器是一種能自動調整輸出電壓的供電電路或供電設備，其作用是將波動較大和達不到電器設備要求的電源電壓穩定在它的設定值范圍內，使各種電路或電器設備能在額定工作電壓下正常工作。高質量的穩壓器品牌產品，大多采(cai)用電(dian)機拖動碳刷的(de)方法穩(wen)(wen)(wen)定電(dian)壓(ya)，這種穩(wen)(wen)(wen)壓(ya)器對電(dian)器設備產生的(de)干擾(rao)很(hen)小穩(wen)(wen)(wen)壓(ya)精度相(xiang)對較高。

穩壓器怎么使用

先(xian)把電(dian)(dian)器(qi)的(de)電(dian)(dian)源接在穩壓器(qi)上(shang)，然后(hou)再打(da)開(kai)(kai)穩壓器(qi)的(de)電(dian)(dian)源開(kai)(kai)關，檢測是否(fou)可以正常(chang)使用(yong)，檢測完后(hou)就(jiu)可以將(jiang)大功率(lv)負載接在穩壓器(qi)上(shang)了。注意，當電(dian)(dian)器(qi)長時間不用(yong)時，要(yao)把穩壓器(qi)的(de)電(dian)(dian)源切斷，這樣才能延長穩壓器(qi)的(de)使用(yong)壽(shou)命。

穩壓器的保養方法

1、穩壓(ya)器(qi)的功率應大于用(yong)(yong)電(dian)設備的總(zong)功率，使用(yong)(yong)時，應放置在(zai)通風(feng)、干燥、無(wu)陽光(guang)直射、無(wu)腐蝕性氣體的室內使用(yong)(yong)。

2、經常(chang)觀察穩壓器的(de)冷卻風扇和傳動機構是否運行(xing)正常(chang)，查(cha)看輸入(ru)電壓和負載是否超過額定(ding)范(fan)圍，發現(xian)異常(chang)及(ji)時處理。

3、穩(wen)壓(ya)器開(kai)關(guan)不宜(yi)作設(she)備的(de)總開(kai)關(guan)使(shi)用，使(shi)用時，應先(xian)打開(kai)穩(wen)壓(ya)器開(kai)關(guan)，待有電(dian)(dian)源輸(shu)出后，再依次從按(an)功率(lv)小到大接上不同的(de)用電(dian)(dian)設(she)備，關(guan)機時從大到小關(guan)機，最后關(guan)上穩(wen)壓(ya)器的(de)開(kai)關(guan)。