穩壓器的原理
最初的(de)(de)電(dian)(dian)(dian)(dian)力(li)穩壓(ya)(ya)器(qi)(qi)是靠繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)的(de)(de)跳(tiao)動穩定電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)(de),當電(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)壓(ya)(ya)出現波動時(shi),電(dian)(dian)(dian)(dian)力(li)穩壓(ya)(ya)器(qi)(qi)的(de)(de)自動糾正電(dian)(dian)(dian)(dian)路(lu)啟動,使內部繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)動作(zuo)。迫使輸出電(dian)(dian)(dian)(dian)壓(ya)(ya)保持在設定值附近,這(zhe)種(zhong)電(dian)(dian)(dian)(dian)路(lu)優點是電(dian)(dian)(dian)(dian)路(lu)簡單,缺點是穩壓(ya)(ya)精度(du)不高并且(qie)每(mei)一次繼(ji)電(dian)(dian)(dian)(dian)器(qi)(qi)跳(tiao)動換擋(dang),都會使供電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)源發(fa)生一次瞬(shun)時(shi)的(de)(de)中(zhong)斷并產(chan)生火花干擾。
現(xian)在(zai)的穩壓(ya)器工作(zuo)原(yuan)理比(bi)較簡單,它是由調壓(ya)電(dian)(dian)路(lu)、控(kong)制電(dian)(dian)路(lu)、及伺服電(dian)(dian)機(ji)等(deng)部(bu)件組成,當輸入(ru)電(dian)(dian)壓(ya)或負載(zai)變化時,控(kong)制電(dian)(dian)路(lu)進行取(qu)樣、比(bi)較、放(fang)大,然后(hou)驅動(dong)伺服電(dian)(dian)機(ji)轉動(dong),使調壓(ya)器碳刷的位(wei)置(zhi)改(gai)變,通(tong)過自動(dong)調整線圈(quan)匝(za)數比(bi),從而保(bao)持(chi)輸出電(dian)(dian)壓(ya)的穩定。容量較大的穩壓(ya)器,還(huan)采用(yong)電(dian)(dian)壓(ya)補償(chang)的原(yuan)理工作(zuo)。
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,大多采用電機拖動碳(tan)刷的方法(fa)穩定電壓(ya),這種(zhong)穩壓(ya)器(qi)對電器(qi)設備產生的干擾很小穩壓(ya)精度(du)相(xiang)對較(jiao)高。
穩壓器怎么使用
先把電(dian)器(qi)(qi)的電(dian)源(yuan)接在(zai)穩壓器(qi)(qi)上,然后再打(da)開(kai)穩壓器(qi)(qi)的電(dian)源(yuan)開(kai)關,檢測是否可以(yi)正常使(shi)用,檢測完后就可以(yi)將大(da)功率負載接在(zai)穩壓器(qi)(qi)上了。注意,當電(dian)器(qi)(qi)長時間不(bu)用時,要把穩壓器(qi)(qi)的電(dian)源(yuan)切斷(duan),這樣才能延長穩壓器(qi)(qi)的使(shi)用壽命。
穩壓器的保養方法
1、穩(wen)壓器的(de)功率(lv)應大于用(yong)(yong)電設備(bei)的(de)總功率(lv),使用(yong)(yong)時,應放(fang)置在通風(feng)、干燥、無陽光直(zhi)射、無腐(fu)蝕性氣體的(de)室內使用(yong)(yong)。
2、經常(chang)觀(guan)察穩(wen)壓(ya)器的(de)冷卻風(feng)扇(shan)和傳動機(ji)構是否運行正常(chang),查看(kan)輸(shu)入(ru)電壓(ya)和負(fu)載是否超過(guo)額定范圍,發現(xian)異常(chang)及時(shi)處理。
3、穩(wen)(wen)壓(ya)器開(kai)關(guan)(guan)不(bu)宜作(zuo)設備(bei)的(de)(de)總開(kai)關(guan)(guan)使用(yong),使用(yong)時(shi),應先(xian)打開(kai)穩(wen)(wen)壓(ya)器開(kai)關(guan)(guan),待有電源輸出后,再依(yi)次從按功率小(xiao)到(dao)大接上不(bu)同的(de)(de)用(yong)電設備(bei),關(guan)(guan)機時(shi)從大到(dao)小(xiao)關(guan)(guan)機,最后關(guan)(guan)上穩(wen)(wen)壓(ya)器的(de)(de)開(kai)關(guan)(guan)。