芒果视频

穩壓器的原理

最(zui)初的電(dian)(dian)(dian)(dian)(dian)力穩(wen)壓(ya)(ya)器(qi)是(shi)靠繼電(dian)(dian)(dian)(dian)(dian)器(qi)的跳動(dong)穩(wen)定電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)的，當(dang)電(dian)(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)出現波動(dong)時，電(dian)(dian)(dian)(dian)(dian)力穩(wen)壓(ya)(ya)器(qi)的自動(dong)糾正電(dian)(dian)(dian)(dian)(dian)路(lu)啟動(dong)，使內部繼電(dian)(dian)(dian)(dian)(dian)器(qi)動(dong)作(zuo)。迫使輸(shu)出電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)保持在設定值附近，這(zhe)種電(dian)(dian)(dian)(dian)(dian)路(lu)優點是(shi)電(dian)(dian)(dian)(dian)(dian)路(lu)簡單，缺點是(shi)穩(wen)壓(ya)(ya)精度不(bu)高并(bing)且每一次(ci)繼電(dian)(dian)(dian)(dian)(dian)器(qi)跳動(dong)換擋，都(dou)會使供電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)源發生(sheng)(sheng)一次(ci)瞬時的中斷并(bing)產生(sheng)(sheng)火花干擾。

現在的(de)穩壓(ya)器(qi)工(gong)作(zuo)原理比較簡單，它(ta)是由調壓(ya)電(dian)(dian)路(lu)、控制電(dian)(dian)路(lu)、及伺服電(dian)(dian)機(ji)等部件組(zu)成，當輸入電(dian)(dian)壓(ya)或負載變化時，控制電(dian)(dian)路(lu)進行取樣、比較、放(fang)大，然(ran)后驅動(dong)(dong)伺服電(dian)(dian)機(ji)轉動(dong)(dong)，使(shi)調壓(ya)器(qi)碳刷的(de)位置改變，通過自動(dong)(dong)調整(zheng)線圈匝數比，從而保持輸出電(dian)(dian)壓(ya)的(de)穩定。容量較大的(de)穩壓(ya)器(qi)，還采用電(dian)(dian)壓(ya)補償的(de)原理工(gong)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(duo)采用(yong)電機拖(tuo)動(dong)碳刷的(de)方法穩(wen)定電壓，這(zhe)種(zhong)穩(wen)壓器對電器設備產生的(de)干擾(rao)很(hen)小穩(wen)壓精度相對較高。

穩壓器怎么使用

先把電器(qi)(qi)的(de)電源(yuan)接在(zai)(zai)穩(wen)壓器(qi)(qi)上(shang)，然后再打(da)開穩(wen)壓器(qi)(qi)的(de)電源(yuan)開關，檢(jian)(jian)測是否可以(yi)正(zheng)常(chang)使(shi)用，檢(jian)(jian)測完(wan)后就可以(yi)將大功率負載接在(zai)(zai)穩(wen)壓器(qi)(qi)上(shang)了。注意，當電器(qi)(qi)長(chang)(chang)時(shi)(shi)間不(bu)用時(shi)(shi)，要(yao)把穩(wen)壓器(qi)(qi)的(de)電源(yuan)切斷，這樣才能延長(chang)(chang)穩(wen)壓器(qi)(qi)的(de)使(shi)用壽(shou)命。

穩壓器的保養方法

1、穩(wen)壓器的功(gong)率應(ying)大于用(yong)電設備的總功(gong)率，使(shi)用(yong)時，應(ying)放置在通風、干燥(zao)、無(wu)陽(yang)光(guang)直射、無(wu)腐蝕性氣體的室內使(shi)用(yong)。

2、經常(chang)觀察穩壓器的冷卻風扇和傳動(dong)機構是(shi)(shi)否運行正常(chang)，查看輸入電壓和負載是(shi)(shi)否超過額定范圍(wei)，發(fa)現異常(chang)及時處理(li)。

3、穩壓器(qi)(qi)開(kai)(kai)關(guan)不宜作設(she)備的(de)總開(kai)(kai)關(guan)使(shi)用(yong)，使(shi)用(yong)時，應(ying)先打開(kai)(kai)穩壓器(qi)(qi)開(kai)(kai)關(guan)，待(dai)有電(dian)源(yuan)輸出后，再依次從按功(gong)率小到大接上不同的(de)用(yong)電(dian)設(she)備，關(guan)機時從大到小關(guan)機，最后關(guan)上穩壓器(qi)(qi)的(de)開(kai)(kai)關(guan)。