大家好今天來介紹led燈珠線路板知識 led燈w和(he)y什(shen)么(me)意思的問(wen)題，以(yi)下是小編對此問(wen)題和(he)相(xiang)關問(wen)題的歸納整理,一起來看(kan)看(kan)吧。

文章目錄導航:

• 1、客廳的LED燈珠經常被燒壞該怎么修理電路需串聯一個多大的電阻
• 2、led燈線路板w與y是什么意思
• 3、LED燈線路板電流經過每個元器件都是怎么一個過程元器件都起到什么作用
• 4、led燈具都有一塊小電路板有什么用
• 5、led燈珠的基板是什么作用

客廳的LED燈珠經常被燒壞該怎么修理電路需串聯一個多大的電阻

提問(wen)者說，客廳里的LED燈的燈珠(zhu)經常被燒(shao)壞，出現(xian)這種情(qing)況一般(ban)是LED燈珠(zhu)的驅(qu)動(dong)電(dian)(dian)流偏大，再加上(shang)燈珠(zhu)可能散熱不好，這樣便會導(dao)致燈珠(zhu)燒(shao)壞。 簡單的阻容降壓恒流驅(qu)動(dong)電(dian)(dian)路(lu)。

現在(zai)的(de)(de)(de)LED燈(deng)質量好的(de)(de)(de)其(qi)恒流(liu)(liu)(liu)驅動(dong)器一般(ban)都采用(yong)專用(yong)的(de)(de)(de)恒流(liu)(liu)(liu)驅動(dong)IC設(she)計，驅動(dong)電(dian)(dian)流(liu)(liu)(liu)比較穩定(ding)，一般(ban)不容易損壞，而一些(xie)廉(lian)價的(de)(de)(de)LED燈(deng)有不少都是采用(yong)上圖(tu)所示(shi)的(de)(de)(de)簡單的(de)(de)(de)阻(zu)容降壓恒流(liu)(liu)(liu)驅動(dong)電(dian)(dian)路。這種(zhong)驅動(dong)電(dian)(dian)路的(de)(de)(de)驅動(dong)電(dian)(dian)流(liu)(liu)(liu)不太穩定(ding)，其(qi)大小與電(dian)(dian)容C1的(de)(de)(de)容量、市電(dian)(dian)電(dian)(dian)壓的(de)(de)(de)高低有關(guan)。若遇到市電(dian)(dian)電(dian)(dian)壓偏(pian)高，或C1取值(zhi)偏(pian)大，這樣便(bian)會導致(zhi)流(liu)(liu)(liu)過燈(deng)珠的(de)(de)(de)電(dian)(dian)流(liu)(liu)(liu)變大，而LED燈(deng)珠在(zai)燈(deng)罩(zhao)內，若燈(deng)珠的(de)(de)(de)散(san)熱(re)不好，工作時間一長便(bian)可(ke)能會被(bei)燒壞。 簡單的(de)(de)(de)LED恒流(liu)(liu)(liu)驅動(dong)電(dian)(dian)路板。

出現這種情(qing)況，我們可以用萬(wan)用表測量一(yi)(yi)(yi)下(xia)市(shi)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)是(shi)否偏高，降壓(ya)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)的(de)(de)容(rong)(rong)(rong)量與燈(deng)(deng)珠(zhu)(zhu)的(de)(de)工(gong)作(zuo)電(dian)(dian)(dian)(dian)流是(shi)否匹配。若(ruo)所在地區的(de)(de)市(shi)電(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)壓(ya)經常(chang)偏高，可以將(jiang)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)C1的(de)(de)容(rong)(rong)(rong)量適當減小(xiao)一(yi)(yi)(yi)些(xie)。為了防止開燈(deng)(deng)瞬(shun)間浪涌電(dian)(dian)(dian)(dian)流損壞燈(deng)(deng)珠(zhu)(zhu)，亦可以適當增大電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)C2的(de)(de)容(rong)(rong)(rong)量。另外，若(ruo)C1找不到合(he)適容(rong)(rong)(rong)量的(de)(de)電(dian)(dian)(dian)(dian)容(rong)(rong)(rong)，亦可以在C2兩端并(bing)聯一(yi)(yi)(yi)個阻(zu)值及(ji)功率合(he)適的(de)(de)電(dian)(dian)(dian)(dian)阻(zu)（具體阻(zu)值視實際(ji)情(qing)況而定），這樣可以對流入LED燈(deng)(deng)珠(zhu)(zhu)的(de)(de)電(dian)(dian)(dian)(dian)流進行分流，從而減小(xiao)燈(deng)(deng)珠(zhu)(zhu)的(de)(de)工(gong)作(zuo)電(dian)(dian)(dian)(dian)流，降低其發熱量。

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led燈線路板w與y是什么意思

W是(shi)(shi)(shi)白(bai)(bai)(bai)(bai)(bai)線(xian)(xian)write的(de)(de)(de)(de)縮(suo)寫(xie)，Y是(shi)(shi)(shi)黃(huang)(huang)線(xian)(xian)yellow的(de)(de)(de)(de)縮(suo)寫(xie)LED無級調(diao)光(guang)調(diao)色溫(wen)電源(yuan)輸出端(duan)子：Y-,W-,+，Y-表示(shi)黃(huang)(huang)光(guang)LED的(de)(de)(de)(de)負極(ji)(ji)，W-表示(shi)白(bai)(bai)(bai)(bai)(bai)光(guang)LED的(de)(de)(de)(de)負極(ji)(ji)，+表示(shi)黃(huang)(huang)、白(bai)(bai)(bai)(bai)(bai)兩組(zu)不同色溫(wen)LED的(de)(de)(de)(de)電源(yuan)公共正(zheng)極(ji)(ji)。led燈具有三(san)(san)(san)根線(xian)(xian)的(de)(de)(de)(de)話證明這個光(guang)源(yuan)是(shi)(shi)(shi)三(san)(san)(san)色變光(guang)的(de)(de)(de)(de)，三(san)(san)(san)根線(xian)(xian)一般(ban)是(shi)(shi)(shi)白(bai)(bai)(bai)(bai)(bai)色黃(huang)(huang)色和灰色，w是(shi)(shi)(shi)白(bai)(bai)(bai)(bai)(bai)色的(de)(de)(de)(de)英文的(de)(de)(de)(de)開頭(tou)字母，y是(shi)(shi)(shi)黃(huang)(huang)色的(de)(de)(de)(de)英文的(de)(de)(de)(de)開頭(tou)的(de)(de)(de)(de)字母，一般(ban)三(san)(san)(san)色光(guang)源(yuan)都是(shi)(shi)(shi)一半白(bai)(bai)(bai)(bai)(bai)色的(de)(de)(de)(de)燈珠(zhu)(zhu)和一半黃(huang)(huang)色的(de)(de)(de)(de)燈珠(zhu)(zhu)組(zu)成，w白(bai)(bai)(bai)(bai)(bai)色線(xian)(xian)連(lian)接白(bai)(bai)(bai)(bai)(bai)色燈珠(zhu)(zhu)，y黃(huang)(huang)色線(xian)(xian)連(lian)接黃(huang)(huang)色的(de)(de)(de)(de)燈珠(zhu)(zhu)。

LED燈線路板電流經過每個元器件都是怎么一個過程元器件都起到什么作用

led燈線(xian)路按供(gong)電降(jiang)壓(ya)(ya)方式分為(wei)開關(guan)(guan)電源(yuan)降(jiang)壓(ya)(ya)和(he)(he)電容(rong)降(jiang)壓(ya)(ya)，按亮(liang)度穩定(ding)可靠(kao)性又分為(wei)電阻限流(liu)供(gong)電和(he)(he)恒(heng)流(liu)供(gong)電。其中開關(guan)(guan)電源(yuan)降(jiang)壓(ya)(ya)和(he)(he)恒(heng)流(liu)供(gong)電在家用(yong)照明中為(wei)高檔led燈采用(yong)，下面以電容(rong)降(jiang)壓(ya)(ya)和(he)(he)電阻限流(liu)供(gong)電來說明，如下圖(tu)所(suo)示:

自(zi)己(ji)手繪的，不(bu)太美觀(guan)。交流(liu)電流(liu)從(cong)l經c1r1降壓，經全橋中的d1d2整(zheng)流(liu)，變成(cheng)直流(liu)，經c2r3濾波后成(cheng)穩定的直流(liu)，經由r2限流(liu)輸出給(gei)led正極，再(zai)從(cong)led負極返(fan)回到公(gong)共(gong)負端(duan)，再(zai)經全橋d3d4，返(fan)回到零線(xian)n，這是整(zheng)個完整(zheng)回路。

具(ju)體(ti)元器(qi)件(jian)起的作用再簡單(dan)介(jie)紹一下:

c1r1,降(jiang)壓(ya)，電容降(jiang)壓(ya)有個顯著的優(you)點，根據負載有一定(ding)自適(shi)應電壓(ya)能力，這點兒開關電源和變(bian)壓(ya)器(qi)降(jiang)壓(ya)都比不了。

d1d2d3d4，全橋整流(liu)(liu)，一(yi)般都用(yong)于(yu)將交(jiao)流(liu)(liu)轉為直(zhi)流(liu)(liu)。

r2，限流(liu)保(bao)護(hu)led過流(liu)。

c2r3，對(dui)直流電源的(de)(de)雜波進行(xing)濾波，變成平穩的(de)(de)直流，有利(li)于led亮度的(de)(de)穩定。

led燈具都有一塊小電路板有什么用

修過LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)的(de)(de)(de)(de)(de)(de)朋友都知道，各種(zhong)(zhong)LED燈(deng)(deng)(deng)(deng)(deng)(deng)里(li)面(mian)(mian)一(yi)般(ban)都帶有(you)(you)一(yi)塊(kuai)(kuai)(kuai)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板，那(nei)么這塊(kuai)(kuai)(kuai)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板究竟(jing)有(you)(you)何(he)用(yong)(yong)(yong)(yong)(yong)若LED燈(deng)(deng)(deng)(deng)(deng)(deng)不(bu)要(yao)(yao)這塊(kuai)(kuai)(kuai)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板，直接(jie)(jie)(jie)像白熾燈(deng)(deng)(deng)(deng)(deng)(deng)泡(pao)那(nei)樣接(jie)(jie)(jie)入AC220V電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，LED燈(deng)(deng)(deng)(deng)(deng)(deng)還(huan)會(hui)正常(chang)發光(guang)(guang)嗎下面(mian)(mian)我(wo)(wo)們就來(lai)詳細介紹一(yi)下LED燈(deng)(deng)(deng)(deng)(deng)(deng)里(li)這塊(kuai)(kuai)(kuai)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板的(de)(de)(de)(de)(de)(de)作(zuo)用(yong)(yong)(yong)(yong)(yong)。我(wo)(wo)們知道，各種(zhong)(zhong)LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)里(li)面(mian)(mian)一(yi)般(ban)都采(cai)用(yong)(yong)(yong)(yong)(yong)多個上(shang)(shang)(shang)圖(tu)(tu)所(suo)示(shi)(shi)的(de)(de)(de)(de)(de)(de)貼片(pian)白光(guang)(guang)LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)串并聯組成(cheng)(cheng)。這種(zhong)(zhong)白光(guang)(guang)燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)單個的(de)(de)(de)(de)(de)(de)工作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓一(yi)般(ban)在3V左右，工作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)從(cong)數十(shi)毫安到百十(shi)毫安不(bu)等。由于這種(zhong)(zhong)LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)為非線性的(de)(de)(de)(de)(de)(de)，加在燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)兩端的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓只要(yao)(yao)有(you)(you)較(jiao)小(xiao)的(de)(de)(de)(de)(de)(de)波動(dong)(dong)，流(liu)(liu)(liu)過燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)便(bian)會(hui)發生(sheng)較(jiao)大(da)的(de)(de)(de)(de)(de)(de)變(bian)化，而(er)燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)變(bian)化會(hui)使(shi)燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)的(de)(de)(de)(de)(de)(de)亮(liang)(liang)度也跟著變(bian)化。為了(le)(le)減小(xiao)LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)(de)(de)(de)波動(dong)(dong)導致燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)亮(liang)(liang)度發生(sheng)變(bian)化，一(yi)般(ban)采(cai)用(yong)(yong)(yong)(yong)(yong)一(yi)個恒(heng)(heng)流(liu)(liu)(liu)驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)將AC220V電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)轉換成(cheng)(cheng)恒(heng)(heng)定(ding)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，再用(yong)(yong)(yong)(yong)(yong)該電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)驅(qu)(qu)動(dong)(dong)LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)，這樣即使(shi)AC220V電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓有(you)(you)較(jiao)大(da)的(de)(de)(de)(de)(de)(de)波動(dong)(dong)，流(liu)(liu)(liu)過燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)亦基(ji)(ji)(ji)本不(bu)變(bian)，從(cong)而(er)消(xiao)除了(le)(le)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓波動(dong)(dong)對(dui)LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)亮(liang)(liang)度的(de)(de)(de)(de)(de)(de)影(ying)響，故各種(zhong)(zhong)LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)里(li)面(mian)(mian)一(yi)般(ban)都有(you)(you)一(yi)塊(kuai)(kuai)(kuai)下圖(tu)(tu)所(suo)示(shi)(shi)的(de)(de)(de)(de)(de)(de)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板。該電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板為LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)的(de)(de)(de)(de)(de)(de)驅(qu)(qu)動(dong)(dong)板，其作(zuo)用(yong)(yong)(yong)(yong)(yong)是將AC220V電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓轉換成(cheng)(cheng)適(shi)合LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)使(shi)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，以(yi)保(bao)證LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)能夠正常(chang)工作(zuo)。若LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)沒有(you)(you)這塊(kuai)(kuai)(kuai)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板，直接(jie)(jie)(jie)接(jie)(jie)(jie)入AC220V電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)，很(hen)容易燒壞LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)。實際上(shang)(shang)(shang)除了(le)(le)上(shang)(shang)(shang)述的(de)(de)(de)(de)(de)(de)驅(qu)(qu)動(dong)(dong)板之外，各種(zhong)(zhong)LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)里(li)面(mian)(mian)大(da)都還(huan)有(you)(you)一(yi)塊(kuai)(kuai)(kuai)上(shang)(shang)(shang)圖(tu)(tu)所(suo)示(shi)(shi)的(de)(de)(de)(de)(de)(de)圓形（或(huo)長(chang)條形的(de)(de)(de)(de)(de)(de)）鋁(lv)(lv)基(ji)(ji)(ji)板，其作(zuo)用(yong)(yong)(yong)(yong)(yong)有(you)(you)兩個：一(yi)是用(yong)(yong)(yong)(yong)(yong)來(lai)固定(ding)貼片(pian)LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)，二是用(yong)(yong)(yong)(yong)(yong)來(lai)給(gei)燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)散熱(re)。LED燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)焊(han)接(jie)(jie)(jie)在這種(zhong)(zhong)鋁(lv)(lv)基(ji)(ji)(ji)板上(shang)(shang)(shang)，既(ji)方(fang)便(bian)安裝，又可以(yi)給(gei)燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)散熱(re)，所(suo)以(yi)我(wo)(wo)們在修理LED燈(deng)(deng)(deng)(deng)(deng)(deng)時(shi)，經常(chang)見到燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)是焊(han)接(jie)(jie)(jie)在鋁(lv)(lv)基(ji)(ji)(ji)板上(shang)(shang)(shang)的(de)(de)(de)(de)(de)(de)。順便(bian)說一(yi)下，對(dui)于那(nei)些(xie)簡單的(de)(de)(de)(de)(de)(de)LED驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)，有(you)(you)時(shi)為了(le)(le)降低成(cheng)(cheng)本，常(chang)將驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)的(de)(de)(de)(de)(de)(de)各元件都焊(han)接(jie)(jie)(jie)在鋁(lv)(lv)基(ji)(ji)(ji)板上(shang)(shang)(shang)，對(dui)于這種(zhong)(zhong)LED燈(deng)(deng)(deng)(deng)(deng)(deng)具(ju)，拆開后就看不(bu)到圖(tu)(tu)2所(suo)示(shi)(shi)的(de)(de)(de)(de)(de)(de)那(nei)種(zhong)(zhong)小(xiao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)板了(le)(le)。像上(shang)(shang)(shang)圖(tu)(tu)所(suo)示(shi)(shi)的(de)(de)(de)(de)(de)(de)鋁(lv)(lv)基(ji)(ji)(ji)板上(shang)(shang)(shang)，除了(le)(le)焊(han)接(jie)(jie)(jie)有(you)(you)貼片(pian)燈(deng)(deng)(deng)(deng)(deng)(deng)珠(zhu)(zhu)外，LED燈(deng)(deng)(deng)(deng)(deng)(deng)驅(qu)(qu)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路(lu)用(yong)(yong)(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)整流(liu)(liu)(liu)橋、降壓限(xian)流(liu)(liu)(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)容（在鋁(lv)(lv)基(ji)(ji)(ji)板背面(mian)(mian)）及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)等元件也都焊(han)接(jie)(jie)(jie)在鋁(lv)(lv)基(ji)(ji)(ji)板上(shang)(shang)(shang)。

led燈珠的基板是什么作用

LED燈珠基(ji)板(ban)有(you)如下(xia)作(zuo)用: 1、作(zuo)電(dian)(dian)路板(ban)，起導電(dian)(dian)作(zuo)用。

2、為(wei)燈珠(zhu)散熱，提高燈珠(zhu)效率，延長使用壽命(ming)。

3、兼作燈珠(zhu)布局用，使燈珠(zhu)按預定要求均(jun)勻排列。

以上就是(shi)小編對于led燈珠線路板(ban)知識 led燈w和y什(shen)么意(yi)思問(wen)題和相關問(wen)題的解答了，希望對你有(you)用(yong)