穩壓器工作原理 穩壓器的作用有哪些
穩壓器工作原理(li)
由于部分電(dian)(dian)器(qi)中含(han)有線圈(quan)組件(jian),在通電(dian)(dian)初(chu)期會產(chan)生阻礙(ai)電(dian)(dian)流(liu)的(de)(de)(de)渦(wo)流(liu),渦(wo)流(liu)的(de)(de)(de)產(chan)生既會削弱到電(dian)(dian)器(qi)啟動時(shi)(shi)的(de)(de)(de)瞬時(shi)(shi)電(dian)(dian)壓(ya)(ya)(ya),導(dao)致啟動緩(huan)慢(man),又會加強(qiang)斷路后產(chan)生的(de)(de)(de)瞬時(shi)(shi)電(dian)(dian)壓(ya)(ya)(ya),可(ke)能產(chan)生火花損(sun)壞電(dian)(dian)路。此時(shi)(shi)便需要(yao)一個穩壓(ya)(ya)(ya)器(qi)來保護電(dian)(dian)路的(de)(de)(de)正常運行(xing)。穩壓(ya)(ya)(ya)器(qi)由調壓(ya)(ya)(ya)電(dian)(dian)路、控(kong)制(zhi)電(dian)(dian)路、及伺服(fu)電(dian)(dian)機(ji)等組成(cheng),當輸(shu)入電(dian)(dian)壓(ya)(ya)(ya)或負載變化時(shi)(shi),控(kong)制(zhi)電(dian)(dian)路進行(xing)取樣、比較(jiao)、放大,然(ran)后驅動伺服(fu)電(dian)(dian)機(ji)轉動,使調壓(ya)(ya)(ya)器(qi)碳刷的(de)(de)(de)位(wei)置改變,通過自(zi)動調整線圈(quan)匝(za)數(shu)比,從而保持輸(shu)出電(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)穩定。容量較(jiao)大的(de)(de)(de)穩壓(ya)(ya)(ya)器(qi),還采用電(dian)(dian)壓(ya)(ya)(ya)補償的(de)(de)(de)原理(li)工作。
穩壓器的作用
穩壓(ya)器是(shi)一種(zhong)能(neng)(neng)自動調(diao)整(zheng)輸(shu)出電(dian)壓(ya)的(de)供電(dian)電(dian)路(lu)或供電(dian)設備,其作(zuo)(zuo)用是(shi)將波(bo)動較大和達不到電(dian)器設備要求的(de)電(dian)源電(dian)壓(ya)穩定(ding)(ding)在(zai)它(ta)的(de)設定(ding)(ding)值范圍內,使各種(zhong)電(dian)路(lu)或電(dian)器設備能(neng)(neng)在(zai)額定(ding)(ding)工作(zuo)(zuo)電(dian)壓(ya)下正常工作(zuo)(zuo)。
最初的(de)(de)電(dian)(dian)力穩(wen)(wen)壓器(qi)是靠(kao)繼(ji)電(dian)(dian)器(qi)的(de)(de)跳動(dong)(dong)穩(wen)(wen)定(ding)電(dian)(dian)壓的(de)(de)。當電(dian)(dian)網電(dian)(dian)壓出現波動(dong)(dong)時(shi),電(dian)(dian)力穩(wen)(wen)壓器(qi)的(de)(de)自動(dong)(dong)糾正電(dian)(dian)路啟動(dong)(dong),使(shi)內部(bu)繼(ji)電(dian)(dian)器(qi)動(dong)(dong)作。迫使(shi)輸(shu)出電(dian)(dian)壓保持在設定(ding)值附近(jin),這(zhe)種電(dian)(dian)路優點(dian)(dian)是電(dian)(dian)路簡單(dan),缺點(dian)(dian)是穩(wen)(wen)壓精度不高并且每一次繼(ji)電(dian)(dian)器(qi)跳動(dong)(dong)換擋,都會使(shi)供電(dian)(dian)電(dian)(dian)源(yuan)發生(sheng)一次瞬時(shi)的(de)(de)中斷并產生(sheng)火花干擾。
這對電(dian)(dian)腦(nao)設備的讀(du)寫工(gong)作干(gan)擾很大,容易造成電(dian)(dian)腦(nao)出(chu)現錯誤信號,嚴(yan)重時還會使硬盤損壞。
高質量的小(xiao)型(xing)穩(wen)壓器,大多采用電(dian)機拖(tuo)動碳(tan)刷(shua)的方法穩(wen)定電(dian)壓,這種穩(wen)壓器對電(dian)器設備產生的干擾很小(xiao)穩(wen)壓精度相對較高。
安全事宜
⒈穩(wen)壓電源(yuan)在通電啟動(dong)時,請勿(wu)隨意拆開穩(wen)壓電源(yuan)或撥拉穩(wen)壓電源(yuan)輸入輸出連(lian)線,以防觸電或其它電氣安全事故。
⒉穩壓電(dian)源輸入輸出連線一定要布置合理,防止踩踏磨破(po),造成漏(lou)電(dian)事(shi)故(gu)。
⒊穩壓電源一(yi)定要可(ke)靠(kao)接地,因不接地線運(yun)行(xing)而造成的觸電或人體傷害,由用戶(hu)自行(xing)負責(ze)。
⒋穩壓(ya)電(dian)源的地線(xian)不(bu)能接(jie)在暖氣管道、供(gong)水管道、燃氣管道等公益設施上,以免侵犯第(di)三方(fang)權利或造(zao)成危(wei)害。
⒌應定期檢查穩(wen)壓(ya)電(dian)源的輸入和(he)輸出連線,以免松(song)動或脫落,從而影響穩(wen)壓(ya)電(dian)源的正常使用和(he)用電(dian)安全。
⒍穩壓器的(de)連(lian)接(jie)線的(de)選配必須(xu)達(da)到規定(ding)能承載足夠的(de)電流(liu)容量的(de)連(lian)接(jie)線。
⒎.穩壓器應(ying)輕(qing)拿輕(qing)放,在工(gong)作的時(shi)候避免劇烈振動;
⒏、保(bao)證穩(wen)壓(ya)器(qi)的(de)碳刷彈(dan)簧(huang)有足夠的(de)壓(ya)力,以免碳刷和(he)線(xian)圈接(jie)觸面跳火;
⒐、非專業(ye)人員請不要拆開(kai)穩(wen)壓電源或對穩(wen)壓電源進行(xing)維修。