led燈珠電容壞的現象 led燈故障與維修? |
| 發布時間:2022-09-10 10:46:54 |
大家好今天來(lai)介紹led燈珠(zhu)電容壞的現象(節能燈啟動電容換大了會怎樣)的問(wen)題，以(yi)下是小編(bian)對此問(wen)題的歸納整理(li)，來(lai)看看吧(ba)。 文章目錄列表:
節能燈電容壞了怎么換節能燈電(dian)容(rong)壞(huai)了(le)換法:1.led燈的電(dian)容(rong)壞(huai)了(le),這(zhe)(zhe)時要(yao)先(xian)用(yong)萬用(yong)表的電(dian)容(rong)檔位,把濾波電(dian)容(rong)容(rong)量(liang)測試一下。假如誤差超過30%時,就代表電(dian)容(rong)損壞(huai)了(le),這(zhe)(zhe)時可(ke)以更換耐壓性(xing)及耐溫性(xing)更好的電(dian)解(jie)電(dian)容(rong)。 一般led燈(deng)(deng)的(de)(de)電(dian)(dian)(dian)容(rong)(rong)出現(xian)(xian)故障,可(ke)能是交(jiao)流(liu)電(dian)(dian)(dian)從容(rong)(rong)阻流(liu)過并(bing)且(qie)降(jiang)壓后進(jin)(jin)行整流(liu)了(le)。這時會從電(dian)(dian)(dian)容(rong)(rong)濾波流(liu)過,并(bing)給led的(de)(de)燈(deng)(deng)珠(zhu)進(jin)(jin)行供電(dian)(dian)(dian)。假如電(dian)(dian)(dian)容(rong)(rong)壞(huai)了(le),就會使電(dian)(dian)(dian)壓不太(tai)穩定(ding),從而導致(zhi)直流(liu)電(dian)(dian)(dian)壓較(jiao)低。然后led燈(deng)(deng)就會特別(bie)(bie)暗。還可(ke)能是led燈(deng)(deng)的(de)(de)發熱量特別(bie)(bie)大,然后電(dian)(dian)(dian)容(rong)(rong)元件長時間的(de)(de)在(zai)高溫的(de)(de)環境中進(jin)(jin)行運作。然后容(rong)(rong)量逐(zhu)漸減退,并(bing)且(qie)還會存在(zai)炸裂的(de)(de)現(xian)(xian)象。這時只要把電(dian)(dian)(dian)容(rong)(rong)更換成相同型(xing)號(hao)的(de)(de)新電(dian)(dian)(dian)容(rong)(rong)就行了(le)。 2.led燈(deng)壞了 先把(ba)家(jia)里的(de)總電(dian)源斷(duan)開,然后(hou)(hou)找(zhao)到家(jia)里的(de)人(ren)字梯,把(ba)led燈(deng)的(de)燈(deng)罩拆(chai)卸下來,接(jie)著(zhu)檢查led燈(deng)的(de)損(sun)壞情況如(ru)果如(ru)何。假如(ru)只(zhi)是(shi)燈(deng)泡(pao)損(sun)壞了,這時要把(ba)燈(deng)泡(pao)拆(chai)卸下來,然后(hou)(hou)更換相(xiang)同(tong)型號的(de)燈(deng)泡(pao)。
led燈故障與維修1、LED燈常見故障及維修(xiu)方法 2、1.LED燈(deng)珠(zhu)(zhu)損(sun)壞(huai)(huai)。這(zhe)是一(yi)(yi)個(ge)很常見的錯誤。一(yi)(yi)般LED燈(deng)珠(zhu)(zhu)燒壞(huai)(huai)時，表面會(hui)有(you)黑(hei)點，仔細觀察就能分辨(bian)出來。對(dui)于這(zhe)種故(gu)障維修(xiu)，需要配備烙鐵來清除燒壞(huai)(huai)的燈(deng)珠(zhu)(zhu)并更換。沒有(you)LED燈(deng)珠(zhu)(zhu)怎么辦它可以由(you)一(yi)(yi)個(ge)約150的電阻代替，如果由(you)恒(heng)流源驅動，該電阻可以直(zhi)接短(duan)路。 3、2.濾(lv)波(bo)電(dian)(dian)(dian)(dian)(dian)容(rong)失效。簡(jian)單(dan)的LED燈(deng)通(tong)常是通(tong)過電(dian)(dian)(dian)(dian)(dian)容(rong)電(dian)(dian)(dian)(dian)(dian)阻降壓(ya)(ya)后直(zhi)接對交流(liu)電(dian)(dian)(dian)(dian)(dian)源進(jin)行整(zheng)流(liu)，再通(tong)過電(dian)(dian)(dian)(dian)(dian)容(rong)濾(lv)波(bo)給LED燈(deng)珠供電(dian)(dian)(dian)(dian)(dian)。如果(guo)濾(lv)波(bo)電(dian)(dian)(dian)(dian)(dian)容(rong)失效，電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)會(hui)不(bu)穩定，DC電(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)會(hui)很低，會(hui)使LED燈(deng)變暗。用(yong)萬(wan)用(yong)表的電(dian)(dian)(dian)(dian)(dian)容(rong)文件測量(liang)濾(lv)波(bo)電(dian)(dian)(dian)(dian)(dian)容(rong)的容(rong)量(liang)。如果(guo)誤(wu)差(cha)大于30%，則意味(wei)著電(dian)(dian)(dian)(dian)(dian)容(rong)已經(jing)退化。只需找一個耐壓(ya)(ya)和容(rong)量(liang)大于等于電(dian)(dian)(dian)(dian)(dian)容(rong)參數的電(dian)(dian)(dian)(dian)(dian)容(rong)，更換即(ji)可(ke)。 4、3.電(dian)(dian)(dian)容(rong)(rong)電(dian)(dian)(dian)阻(zu)(zu)降(jiang)壓模塊損壞(huai)(huai)。電(dian)(dian)(dian)容(rong)(rong)電(dian)(dian)(dian)阻(zu)(zu)降(jiang)壓模塊由并(bing)聯的(de)電(dian)(dian)(dian)容(rong)(rong)和電(dian)(dian)(dian)阻(zu)(zu)組成。萬用(yong)(yong)表可以(yi)用(yong)(yong)來測(ce)量電(dian)(dian)(dian)容(rong)(rong)器和電(dian)(dian)(dian)阻(zu)(zu)器是否損壞(huai)(huai)。如果損壞(huai)(huai)，找一(yi)個等效(xiao)參數的(de)電(dian)(dian)(dian)容(rong)(rong)和電(dian)(dian)(dian)阻(zu)(zu)來更換(huan)。 5、4.線路斷開了。拆開LED燈(deng)，檢查(cha)內部輸入輸出接線有無斷線，如果有，用電(dian)烙(luo)鐵焊接固定。 6、5.整流(liu)二(er)極管故障。整流(liu)二(er)極管有開路(lu)、短路(lu)等(deng)故障，可能(neng)是(shi)(shi)過(guo)電(dian)壓、過(guo)電(dian)流(liu)引起的，也可能(neng)是(shi)(shi)長(chang)期使用故障引起的。隨便找一個反(fan)向(xiang)耐壓大于350V，工作(zuo)電(dian)流(liu)大于0.5A的整流(liu)二(er)極管，比如1N4004~1N4007等(deng)。 7、6.LED恒流(liu)驅動電(dian)路故(gu)(gu)障(zhang)。對(dui)(dui)于這種故(gu)(gu)障(zhang)，需(xu)要有一定電(dian)子經驗的專(zhuan)業(ye)人員進行維修。對(dui)(dui)于普(pu)通用戶來(lai)說，在以上簡單故(gu)(gu)障(zhang)查不出來(lai)后(hou)，不如更換一個新的LED燈。 8、以上(shang)是關(guan)于LED燈常見故障及維修方(fang)法的(de)知識。希望你能有所(suo)收獲(huo)。 led驅動器電容燒壞的現象LED燈盤上的(de)(de)發光二極管如果(guo)燒壞，發光管看(kan)起(qi)來(lai)會輕(qing)微的(de)(de)發黑(hei)。用正(zheng)常的(de)(de)電源(yuan)替(ti)換(huan)原來(lai)的(de)(de)電源(yuan)，如果(guo)不亮(liang)(liang)，則說明是燈盤故(gu)障；用正(zheng)常的(de)(de)燈盤替(ti)換(huan)原來(lai)的(de)(de)燈盤，如果(guo)不亮(liang)(liang)，說明是電源(yuan)故(gu)障。 用萬用表測驅動器的(de)(de)輸出電壓，如果測試的(de)(de)數值(zhi)與其(qi)上面標注的(de)(de)一(yi)樣，說明驅動器是(shi)好的(de)(de)。否(fou)則就是(shi)驅動器壞了。 從外觀上來(lai)看，如果LED燈珠(zhu)壞了(le)，其上面(mian)會有小(xiao)黑點(dian)，一般來(lai)說，燈珠(zhu)圷了(le)，要將整燈盤插(cha)下來(lai)換新的。不(bu)(bu)過(guo)，嚴格來(lai)說，燈珠(zhu)壞了(le)不(bu)(bu)代表(biao)驅動器一定是好的，只不(bu)(bu)過(guo)是單一燈珠(zhu)損壞的機率比較高，要想準確判斷只能用(yong)儀表(biao)測試。 led燈管維修及故障LED燈常見的故障及維(wei)修方(fang)法(fa)
1、LED燈珠(zhu)損壞。這是(shi)很常見的(de)故(gu)(gu)障，一(yi)般LED燈珠(zhu)燒(shao)壞時，表面上(shang)會有黑點(dian)，仔細觀察能夠區分出來，對于(yu)這種(zhong)故(gu)(gu)障維修，需要配(pei)備一(yi)把烙鐵(tie)，將燒(shao)壞的(de)燈珠(zhu)拆下來更換(huan)即可，若沒有LED燈珠(zhu)怎(zen)么辦(ban)可使用150Ω左右的(de)電阻代替，若是(shi)恒(heng)流源驅動可以直接(jie)短接(jie)。 2/7 2、濾(lv)(lv)波電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)失效。簡(jian)易(yi)的(de)LED燈一般將(jiang)交流電(dian)(dian)(dian)經過容(rong)(rong)(rong)(rong)阻降壓(ya)后(hou)直接整流，然后(hou)通過電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)濾(lv)(lv)波給LED燈珠(zhu)供(gong)電(dian)(dian)(dian)。若該(gai)濾(lv)(lv)波電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)失效會導致電(dian)(dian)(dian)壓(ya)不(bu)穩，直流電(dian)(dian)(dian)壓(ya)偏低，從(cong)而使LED燈變暗。用萬(wan)用表的(de)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)檔(dang)測量(liang)該(gai)濾(lv)(lv)波電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)的(de)容(rong)(rong)(rong)(rong)量(liang)，若誤差較大，誤差大于(yu)30%左(zuo)右(you)說明該(gai)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)已變質，找一個耐壓(ya)值以及容(rong)(rong)(rong)(rong)量(liang)都大于(yu)等于(yu)該(gai)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)參數(shu)的(de)電(dian)(dian)(dian)容(rong)(rong)(rong)(rong)換上即可。 3/7 3、容阻降(jiang)(jiang)壓模塊(kuai)損壞，容阻降(jiang)(jiang)壓模塊(kuai)由一個電(dian)(dian)容電(dian)(dian)容和(he)電(dian)(dian)阻并聯組成，可用(yong)萬用(yong)表(biao)測量其電(dian)(dian)容、電(dian)(dian)阻是(shi)否(fou)損壞，若(ruo)損壞，找個參數相當的電(dian)(dian)容、電(dian)(dian)阻換上即(ji)可。 4/7 4、線(xian)路斷(duan)開(kai)(kai)。拆開(kai)(kai)LED燈，查看內部輸入輸出接線(xian)處是否有斷(duan)開(kai)(kai)的的情況，若有，使用電烙(luo)鐵將其焊接固定即可。 5/7 5、整(zheng)(zheng)流(liu)二(er)(er)極管(guan)故障(zhang)。整(zheng)(zheng)流(liu)二(er)(er)極管(guan)有(you)開(kai)路、短路等故障(zhang)，可(ke)能(neng)是(shi)過壓過流(liu)引(yin)(yin)起(qi)，也有(you)可(ke)能(neng)是(shi)長期使用失效引(yin)(yin)起(qi)。找個反向(xiang)耐壓值大于350V，工作電流(liu)大于0.5A的整(zheng)(zheng)流(liu)二(er)(er)極管(guan)換上即可(ke)，比如1N4004~1N4007等。 6/7 6、LED恒流驅動電(dian)路故(gu)障(zhang)。對于這種(zhong)故(gu)障(zhang)需要有一定電(dian)子(zi)相關(guan)經驗的(de)專業人員才能維修(xiu)，對于一般用戶來說，以上(shang)簡單的(de)故(gu)障(zhang)查不出原因之(zhi)后還是更(geng)換(huan)個新的(de)LED燈吧。 7/7 以上就是(shi)關于LED燈(deng)常見的(de)故(gu)障及維修方法的(de)知識，希望(wang)大(da)家有所(suo)收獲。 led電源電容導致led擊穿以上就是小編對于led燈(deng)珠電(dian)(dian)容壞的現象(節能(neng)燈(deng)啟動電(dian)(dian)容換大了會怎樣)問(wen)題(ti)和相關問(wen)題(ti)的解答了，希望對你有用 |
