電容代替led燈珠 今日頭條極速版 下載 |
| 發布時間:2022-10-13 13:10:24 |
大(da)家好(hao)我(wo)(wo)是(shi)小編燈漂(piao)亮(liang)今天我(wo)(wo)們來介紹電容代替led燈珠 今日頭(tou)條極速版 下載(zai)的(de)問題，以下就(jiu)是(shi)燈漂(piao)亮(liang)對(dui)此問題和相關(guan)問題的(de)歸納整理(li),一(yi)起來看(kan)看(kan)吧。 文章目錄導航: led燈故障與維修 1、LED燈常見(jian)故障及(ji)維(wei)修方法(fa) 2、1.LED燈(deng)珠損壞。這(zhe)是(shi)一個很常見的(de)錯誤。一般LED燈(deng)珠燒壞時(shi)，表面會有黑(hei)點，仔細觀(guan)察就能(neng)分辨(bian)出(chu)來。對于這(zhe)種故障(zhang)維修，需要配備烙鐵(tie)來清(qing)除(chu)燒壞的(de)燈(deng)珠并更換。沒(mei)有LED燈(deng)珠怎么辦它可以由一個約(yue)150的(de)電(dian)(dian)阻(zu)代替，如果由恒流源驅動，該電(dian)(dian)阻(zu)可以直接短路(lu)。 3、2.濾波電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)失效(xiao)。簡單的(de)LED燈通(tong)常是通(tong)過電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)電(dian)(dian)(dian)(dian)阻降壓后直接對交流電(dian)(dian)(dian)(dian)源(yuan)進(jin)行(xing)整流，再通(tong)過電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)濾波給(gei)LED燈珠供電(dian)(dian)(dian)(dian)。如(ru)(ru)果(guo)(guo)濾波電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)失效(xiao)，電(dian)(dian)(dian)(dian)壓會不穩(wen)定，DC電(dian)(dian)(dian)(dian)壓會很低(di)，會使LED燈變暗。用(yong)(yong)萬用(yong)(yong)表(biao)的(de)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)文(wen)件測量濾波電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)的(de)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)量。如(ru)(ru)果(guo)(guo)誤差大于(yu)30%，則意味著電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)已經退化。只需找(zhao)一個耐(nai)壓和容(rong)(rong)(rong)(rong)(rong)(rong)(rong)量大于(yu)等(deng)于(yu)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)參數的(de)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)(rong)(rong)(rong)(rong)，更換(huan)即(ji)可。 4、3.電(dian)(dian)(dian)容電(dian)(dian)(dian)阻降(jiang)壓模(mo)塊(kuai)(kuai)損壞(huai)。電(dian)(dian)(dian)容電(dian)(dian)(dian)阻降(jiang)壓模(mo)塊(kuai)(kuai)由并聯的電(dian)(dian)(dian)容和(he)電(dian)(dian)(dian)阻組成。萬用表可以用來測量(liang)電(dian)(dian)(dian)容器和(he)電(dian)(dian)(dian)阻器是否損壞(huai)。如果(guo)損壞(huai)，找一個(ge)等效參(can)數的電(dian)(dian)(dian)容和(he)電(dian)(dian)(dian)阻來更換。 5、4.線路斷(duan)開了。拆(chai)開LED燈，檢查(cha)內(nei)部輸入輸出接線有無斷(duan)線，如果有，用電(dian)烙鐵焊接固定。 6、5.整流(liu)(liu)二(er)極(ji)管(guan)(guan)故障(zhang)(zhang)。整流(liu)(liu)二(er)極(ji)管(guan)(guan)有(you)開路、短路等故障(zhang)(zhang)，可(ke)能是(shi)過(guo)電(dian)壓、過(guo)電(dian)流(liu)(liu)引(yin)起(qi)的，也可(ke)能是(shi)長期使(shi)用(yong)故障(zhang)(zhang)引(yin)起(qi)的。隨便找一(yi)個反向耐壓大(da)于350V，工作電(dian)流(liu)(liu)大(da)于0.5A的整流(liu)(liu)二(er)極(ji)管(guan)(guan)，比如(ru)1N40041N4007等。 7、6.LED恒流驅動電路故(gu)(gu)障(zhang)。對于(yu)這(zhe)種故(gu)(gu)障(zhang)，需要有(you)一(yi)定電子經驗的(de)專業人(ren)員進行(xing)維(wei)修(xiu)。對于(yu)普通(tong)用戶來說，在(zai)以上簡單故(gu)(gu)障(zhang)查不(bu)出來后，不(bu)如更換一(yi)個新(xin)的(de)LED燈(deng)。 8、以上是關于LED燈常見故障及維修方法的知識。希望你能有所(suo)收獲(huo)。
今日頭條 led燈珠壞一個可以用電容代替嗎 不(bu)可(ke)以，因為LED燈(deng)(deng)珠(zhu)都是(shi)直流(liu)(liu)供電(dian)(dian)，電(dian)(dian)容是(shi)隔(ge)離直流(liu)(liu)通過交流(liu)(liu)的(de)(de)(de)(de)。如(ru)果燈(deng)(deng)條或(huo)燈(deng)(deng)帶有一個燈(deng)(deng)珠(zhu)損(sun)(sun)(sun)壞，可(ke)以臨(lin)時(shi)短接損(sun)(sun)(sun)壞的(de)(de)(de)(de)燈(deng)(deng)珠(zhu)。達到可(ke)以點亮(liang)的(de)(de)(de)(de)目的(de)(de)(de)(de)。但這(zhe)樣(yang)使用會使其(qi)他(ta)燈(deng)(deng)珠(zhu)電(dian)(dian)壓(ya)升(sheng)高，各(ge)燈(deng)(deng)珠(zhu)的(de)(de)(de)(de)電(dian)(dian)流(liu)(liu)增(zeng)大，降低(di)整個燈(deng)(deng)條燈(deng)(deng)帶的(de)(de)(de)(de)使用壽命(ming)。最好直接更換損(sun)(sun)(sun)壞的(de)(de)(de)(de)燈(deng)(deng)珠(zhu)。 led燈盤壞了怎么維修 1、LED燈珠(zhu)損壞(huai)。這是很(hen)常(chang)見的(de)故障，一(yi)般LED燈珠(zhu)燒壞(huai)時，表面(mian)上會有黑(hei)點(dian)，仔細觀察能夠區分(fen)出(chu)來，對于這種故障維修(xiu)，需要配(pei)備一(yi)把(ba)烙鐵(tie)，將燒壞(huai)的(de)燈珠(zhu)拆(chai)下來更換即可(ke)，若(ruo)(ruo)沒有LED燈珠(zhu)怎么辦可(ke)使用150Ω左右的(de)電(dian)阻代替，若(ruo)(ruo)是恒流(liu)源驅動可(ke)以直接(jie)短接(jie)。 2、濾波(bo)電(dian)(dian)(dian)(dian)容(rong)(rong)失(shi)效。簡易的(de)(de)LED燈(deng)(deng)(deng)一般將交流電(dian)(dian)(dian)(dian)經過容(rong)(rong)阻降壓(ya)后直接整(zheng)流，然后通過電(dian)(dian)(dian)(dian)容(rong)(rong)濾波(bo)給LED燈(deng)(deng)(deng)珠供電(dian)(dian)(dian)(dian)。若該(gai)濾波(bo)電(dian)(dian)(dian)(dian)容(rong)(rong)失(shi)效會導致(zhi)電(dian)(dian)(dian)(dian)壓(ya)不穩，直流電(dian)(dian)(dian)(dian)壓(ya)偏(pian)低，從(cong)而使LED燈(deng)(deng)(deng)變(bian)暗(an)。用萬用表的(de)(de)電(dian)(dian)(dian)(dian)容(rong)(rong)檔測量(liang)該(gai)濾波(bo)電(dian)(dian)(dian)(dian)容(rong)(rong)的(de)(de)容(rong)(rong)量(liang)，若誤差較大(da)(da)，誤差大(da)(da)于30%左右說明該(gai)電(dian)(dian)(dian)(dian)容(rong)(rong)已(yi)變(bian)質(zhi)，找一個耐壓(ya)值以及(ji)容(rong)(rong)量(liang)都大(da)(da)于等于該(gai)電(dian)(dian)(dian)(dian)容(rong)(rong)參數的(de)(de)電(dian)(dian)(dian)(dian)容(rong)(rong)換上(shang)即(ji)可。 3、容(rong)(rong)阻(zu)降壓模(mo)塊損(sun)壞(huai)，容(rong)(rong)阻(zu)降壓模(mo)塊由一個電容(rong)(rong)電容(rong)(rong)和電阻(zu)并聯組成，可用(yong)萬用(yong)表測量其(qi)電容(rong)(rong)、電阻(zu)是否(fou)損(sun)壞(huai)，若損(sun)壞(huai)，找個參數相當的電容(rong)(rong)、電阻(zu)換上即(ji)可。 4、線(xian)路斷開。拆開LED燈，查看內部輸(shu)入輸(shu)出接線(xian)處是(shi)否有斷開的的情(qing)況，若有，使用電烙鐵(tie)將(jiang)其焊接固定即可。 5、整流(liu)二極管故障。整流(liu)二極管有(you)開路(lu)、短路(lu)等(deng)故障，可能是過壓過流(liu)引(yin)起，也有(you)可能是長期(qi)使用(yong)失效(xiao)引(yin)起。找(zhao)個反(fan)向耐(nai)壓值大于350V，工作電流(liu)大于0.5A的整流(liu)二極管換上(shang)即可，比如1N40041N4007等(deng)。 6、LED恒流驅動電路故障。對(dui)于這種故障需(xu)要有一(yi)定(ding)電子相關經驗的專業(ye)人(ren)員才能維修，對(dui)于一(yi)般用戶來說，以(yi)上簡單的故障查(cha)不(bu)出原因之后還是(shi)更換個新的LED燈吧。 led照明燈的故障與維修 與以前的白(bai)熾燈(deng)不同，白(bai)熾燈(deng)壞了(le)(le)(le)基本上(shang)都是鎢(wu)絲燒壞了(le)(le)(le)，無法(fa)維(wei)修，只能更換。LED燈(deng)就(jiu)不一(yi)(yi)樣了(le)(le)(le)。LED燈(deng)由LED驅動(dong)電路和LED燈(deng)珠組成。大多(duo)數情況(kuang)下，LED燈(deng)燒壞是可(ke)以修復的，下面就(jiu)來(lai)聊一(yi)(yi)下led燈(deng)如(ru)果壞了(le)(le)(le)如(ru)何(he)修理(li)常見故障是什么 1、LED燈珠損壞 這是(shi)一個很(hen)常見(jian)的故障，一般LED燈(deng)珠燒壞時，表面(mian)會(hui)有黑(hei)點。仔細觀察就能區分出來。對于這種故障的維護，需要配備烙鐵(tie)，拆(chai)下燒壞的燈(deng)珠更(geng)換。 沒(mei)有LED燈珠怎么辦可(ke)以(yi)用150ω左右的電阻代替，恒流源驅動(dong)可(ke)以(yi)直接(jie)短(duan)接(jie)。 2、濾波電容失效 簡(jian)易LED燈(deng)(deng)(deng)一(yi)般通過容(rong)阻(zu)降壓直接(jie)整流交流電(dian)(dian)，然后通過電(dian)(dian)容(rong)濾波(bo)給LED燈(deng)(deng)(deng)珠供電(dian)(dian)。如果濾波(bo)電(dian)(dian)容(rong)失效，會(hui)導致電(dian)(dian)壓不(bu)穩定，DC電(dian)(dian)壓低，使LED燈(deng)(deng)(deng)變暗。 用(yong)萬用(yong)表的電(dian)容(rong)(rong)(rong)檔測(ce)量(liang)濾(lv)波電(dian)容(rong)(rong)(rong)的容(rong)(rong)(rong)量(liang)。如(ru)果誤(wu)差較大，誤(wu)差大于30%，說(shuo)明電(dian)容(rong)(rong)(rong)已(yi)經變質可以更換耐(nai)壓值和容(rong)(rong)(rong)量(liang)大于等于電(dian)容(rong)(rong)(rong)參數的電(dian)容(rong)(rong)(rong)。 3、容阻降壓模塊損(sun)壞 容(rong)(rong)阻(zu)降(jiang)壓模(mo)塊(kuai)由電容(rong)(rong)電容(rong)(rong)和電阻(zu)并(bing)聯組成。萬(wan)用(yong)(yong)表可(ke)以用(yong)(yong)來測量電容(rong)(rong)電阻(zu)是否損(sun)壞。如果(guo)損(sun)壞，可(ke)以更換參數相當的電容(rong)(rong)電阻(zu)。 4、線路斷開 打開LED燈，檢(jian)查(cha)內部輸入(ru)輸出(chu)接線是(shi)否斷(duan)開。如果(guo)是(shi)，用(yong)烙鐵焊接固(gu)定。 5、整流二極管故障 整流二極管有開路(lu)(lu)、短路(lu)(lu)等故(gu)障，可能是過壓過流或(huo)長期使用故(gu)障造(zao)成的。找(zhao)一個反向耐(nai)壓值(zhi)大(da)于350V、工作電流大(da)于0.5A的整流二極管，比如1N40041N4007。 6、LED恒流(liu)驅動電路故障 對于這(zhe)種故障，需要有一(yi)定電子相關經驗的(de)專業人員來維護。對于普通用戶(hu)來說，在找不到上述簡單故障的(de)原因后，更(geng)換(huan)新(xin)的(de)LED燈。 以上(shang)就(jiu)是天成小編(bian)對于(yu)電容代替led燈珠(zhu) 今(jin)日頭(tou)條極速版(ban) 下(xia)載問題和相關(guan)問題的解答了，希(xi)望對你有用 【責任編(bian)輯：燈漂亮】 |
