穩壓器的原理
最初的(de)(de)電(dian)(dian)(dian)(dian)(dian)力(li)穩(wen)(wen)壓(ya)器(qi)是(shi)靠繼(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)的(de)(de)跳(tiao)動(dong)穩(wen)(wen)定電(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de),當電(dian)(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)(dian)壓(ya)出(chu)現波動(dong)時,電(dian)(dian)(dian)(dian)(dian)力(li)穩(wen)(wen)壓(ya)器(qi)的(de)(de)自動(dong)糾正電(dian)(dian)(dian)(dian)(dian)路(lu)啟動(dong),使內部繼(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)動(dong)作。迫使輸出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)保(bao)持(chi)在設定值附近(jin),這(zhe)種電(dian)(dian)(dian)(dian)(dian)路(lu)優(you)點是(shi)電(dian)(dian)(dian)(dian)(dian)路(lu)簡單,缺(que)點是(shi)穩(wen)(wen)壓(ya)精度(du)不高并(bing)且每(mei)一次(ci)(ci)繼(ji)電(dian)(dian)(dian)(dian)(dian)器(qi)跳(tiao)動(dong)換擋(dang),都(dou)會使供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)源發生一次(ci)(ci)瞬時的(de)(de)中斷(duan)并(bing)產生火花(hua)干擾(rao)。
現在的穩(wen)壓器(qi)工作(zuo)原理(li)比(bi)較簡單,它(ta)是由調壓電(dian)(dian)路、控制(zhi)電(dian)(dian)路、及伺服(fu)電(dian)(dian)機等部(bu)件組成(cheng),當輸入(ru)電(dian)(dian)壓或負載變化時,控制(zhi)電(dian)(dian)路進行取樣、比(bi)較、放大,然后驅(qu)動(dong)伺服(fu)電(dian)(dian)機轉動(dong),使(shi)調壓器(qi)碳刷的位置(zhi)改(gai)變,通過自動(dong)調整(zheng)線(xian)圈匝數比(bi),從(cong)而保持輸出電(dian)(dian)壓的穩(wen)定。容量較大的穩(wen)壓器(qi),還采用電(dian)(dian)壓補(bu)償的原理(li)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(dong)碳刷的方法穩(wen)定電壓,這種穩(wen)壓器對(dui)電器設備產生的干擾(rao)很(hen)小穩(wen)壓精度(du)相對(dui)較高。
穩壓器怎么使用
先把(ba)電(dian)器(qi)(qi)的(de)電(dian)源(yuan)(yuan)接在(zai)(zai)穩壓(ya)器(qi)(qi)上,然(ran)后再打開穩壓(ya)器(qi)(qi)的(de)電(dian)源(yuan)(yuan)開關,檢測(ce)是否可(ke)以正常使用,檢測(ce)完后就可(ke)以將大功(gong)率負載接在(zai)(zai)穩壓(ya)器(qi)(qi)上了。注意(yi),當電(dian)器(qi)(qi)長(chang)時間不(bu)用時,要(yao)把(ba)穩壓(ya)器(qi)(qi)的(de)電(dian)源(yuan)(yuan)切斷,這樣才能延長(chang)穩壓(ya)器(qi)(qi)的(de)使用壽命。
穩壓器的保養方法
1、穩壓器的功率(lv)應大于(yu)用(yong)電設備的總功率(lv),使用(yong)時(shi),應放置(zhi)在通風、干燥、無陽光(guang)直射、無腐(fu)蝕性氣體的室內使用(yong)。
2、經常觀(guan)察穩壓器的(de)冷卻風扇和傳動(dong)機構是(shi)否運(yun)行(xing)正常,查看輸(shu)入電(dian)壓和負載是(shi)否超(chao)過(guo)額定(ding)范圍,發現異常及時處理(li)。
3、穩(wen)壓器(qi)(qi)(qi)開關(guan)(guan)不(bu)宜(yi)作設備的(de)總開關(guan)(guan)使用(yong)(yong),使用(yong)(yong)時(shi),應先打(da)開穩(wen)壓器(qi)(qi)(qi)開關(guan)(guan),待有電源輸(shu)出后(hou),再(zai)依次從按功率小到大接上(shang)不(bu)同的(de)用(yong)(yong)電設備,關(guan)(guan)機時(shi)從大到小關(guan)(guan)機,最(zui)后(hou)關(guan)(guan)上(shang)穩(wen)壓器(qi)(qi)(qi)的(de)開關(guan)(guan)。