【穩(wen)(wen)壓器(qi)(qi)的(de)作用】穩(wen)(wen)壓器(qi)(qi)的(de)用途 穩壓器的功(gong)能 穩壓器有(you)什么用？

穩壓器的(de)用(yong)途就是起(qi)到穩定電壓(ya)的(de)作用(yong)，電壓(ya)高(gao)了，它降下來，電壓(ya)低了 ，再(zai)升上去(qu)。

穩(wen)壓(ya)(ya)器(qi)主要(yao)由調壓(ya)(ya)電(dian)(dian)路、控制電(dian)(dian)路、及伺服(fu)電(dian)(dian)機等組成，當輸入電(dian)(dian)壓(ya)(ya)或負載(zai)變(bian)化時(shi)，控制電(dian)(dian)路進行取樣、比(bi)較、放(fang)大，然后驅動(dong)伺服(fu)電(dian)(dian)機轉(zhuan)動(dong)，使調壓(ya)(ya)器(qi)碳刷的位置改變(bian)，通過自動(dong)調整線圈(quan)匝數比(bi)，從而保持輸出電(dian)(dian)壓(ya)(ya)的穩(wen)定。容量較大的穩(wen)壓(ya)(ya)器(qi)，還采(cai)用電(dian)(dian)壓(ya)(ya)補償的原理工作。

最初的(de)電(dian)(dian)(dian)(dian)(dian)力(li)穩(wen)壓(ya)器是靠繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器的(de)跳(tiao)動(dong)穩(wen)定(ding)電(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)。當電(dian)(dian)(dian)(dian)(dian)網電(dian)(dian)(dian)(dian)(dian)壓(ya)出現波(bo)動(dong)時，電(dian)(dian)(dian)(dian)(dian)力(li)穩(wen)壓(ya)器的(de)自動(dong)糾正電(dian)(dian)(dian)(dian)(dian)路啟(qi)動(dong)，使(shi)內部繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器動(dong)作。迫使(shi)輸出電(dian)(dian)(dian)(dian)(dian)壓(ya)保持在設(she)定(ding)值附近，這種電(dian)(dian)(dian)(dian)(dian)路優(you)點(dian)是電(dian)(dian)(dian)(dian)(dian)路簡單(dan)，缺點(dian)是穩(wen)壓(ya)精度不高并(bing)且每一次(ci)(ci)繼(ji)(ji)電(dian)(dian)(dian)(dian)(dian)器跳(tiao)動(dong)換擋，都(dou)會使(shi)供(gong)電(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)源發生一次(ci)(ci)瞬時的(de)中斷(duan)并(bing)產生火花干擾。

后(hou)期也是現(xian)在的穩壓器(qi)一般是工(gong)(gong)業級穩壓器(qi)，工(gong)(gong)業級穩壓器(qi)是利用感應(ying)原理(li)來做電壓調整(zheng)、無接點于負(fu)載中呈(cheng)線性升降壓調整(zheng)，電壓調整(zheng)中，不會產生頻率偏移及(ji)電涌，致負(fu)載電力品質與輸入(ru)端相同。采(cai)用高效率和(he)寬大的安(an)全范圍工(gong)(gong)業級零件(jian)組合(he)而(er)成，可以承受惡劣的溫度(du)、濕度(du)、震動及(ji)污穢環境。

隨(sui)著社(she)會飛(fei)速發(fa)展，用(yong)電設(she)備(bei)與日俱增(zeng)。但電力輸(shu)配設(she)施(shi)的(de)老化(hua)和發(fa)展滯后，以及設(she)計不(bu)(bu)良和供電不(bu)(bu)足等原因造(zao)成未端用(yong)戶電壓(ya)的(de)過低，而線頭(tou)用(yong)戶則經常電壓(ya)偏高，對用(yong)電設(she)備(bei)特(te)別是對電壓(ya)要求嚴格的(de)高新科技和精密設(she)備(bei)，猶如一(yi)顆不(bu)(bu)定時炸彈(dan)。

說(shuo)到穩壓器的(de)(de)(de)(de)作用(yong)，市電(dian)系統作為(wei)公共電(dian)網(wang)(wang)(wang)，上面連(lian)接了成(cheng)(cheng)千(qian)上萬(wan)各(ge)式各(ge)樣(yang)的(de)(de)(de)(de)負(fu)載，其中一(yi)些較大的(de)(de)(de)(de)感(gan)性、容性、開關電(dian)源(yuan)等(deng)負(fu)載不僅(jin)從電(dian)網(wang)(wang)(wang)中獲得電(dian)能，還會反過來對電(dian)網(wang)(wang)(wang)本身造成(cheng)(cheng)影響(xiang)，惡化電(dian)網(wang)(wang)(wang)或局部電(dian)網(wang)(wang)(wang)的(de)(de)(de)(de)供(gong)電(dian)品質，造成(cheng)(cheng)市電(dian)電(dian)壓波形畸變(bian)(bian)或頻率漂移。另外(wai)意外(wai)的(de)(de)(de)(de)自(zi)然(ran)和人為(wei)事故，如地震(zhen)、雷(lei)擊、輸(shu)變(bian)(bian)電(dian)系統斷路或短(duan)路，都(dou)會危(wei)害(hai)電(dian)力(li)的(de)(de)(de)(de)正常供(gong)應(ying)，從而影響(xiang)負(fu)載的(de)(de)(de)(de)正常工(gong)作。

不穩定的(de)(de)電(dian)壓(ya)會使設備造成(cheng)致命傷(shang)害(hai)或(huo)誤動作，影響(xiang)生(sheng)產，造成(cheng)交貨期延誤、品質不穩定等多(duo)方面損失。同時加速(su)設備的(de)(de)老化、影響(xiang)使用壽命甚(shen)(shen)至燒(shao)毀配件，使業主面臨需(xu)要維修的(de)(de)困擾或(huo)短期內就要更(geng)新設備，浪費資源；嚴(yan)重(zhong)者甚(shen)(shen)至發生(sheng)安全事故，造成(cheng)不可估量(liang)的(de)(de)損失。

穩壓(ya)器對于(yu)用電設(she)備特別是對電壓(ya)要求(qiu)嚴格的(de)高新科技和(he)精密設(she)備來說是必不可(ke)少的(de)。