大家(jia)好我是(shi)(shi)小(xiao)編燈(deng)(deng)漂亮今天我們來介紹(shao)led燈(deng)(deng)珠安規 萬用(yong)表測(ce)LED的方法的問(wen)題(ti)，以下(xia)就是(shi)(shi)燈(deng)(deng)漂亮對此(ci)問(wen)題(ti)和相關(guan)問(wen)題(ti)的歸(gui)納整理,一(yi)起來看看吧。

文章目錄導航:

• 1、led安規驅動什么意思
• 2、萬用表測led的安規的方法
• 3、led燈珠不接地線會怎樣
• 4、LED燈具接220V電源的安規（防觸電）問題

led安規驅動什么意思

LED驅動(dong)電(dian)(dian)(dian)(dian)源(yuan)(yuan)是把電(dian)(dian)(dian)(dian)源(yuan)(yuan)供應轉換為(wei)特定(ding)的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)電(dian)(dian)(dian)(dian)流(liu)(liu)以驅動(dong)LED發光的(de)(de)電(dian)(dian)(dian)(dian)壓(ya)轉換器，通常(chang)情(qing)況下：LED驅動(dong)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)輸入包括高壓(ya)工(gong)頻交(jiao)流(liu)(liu)（即市電(dian)(dian)(dian)(dian)）、低(di)壓(ya)直(zhi)流(liu)(liu)、高壓(ya)直(zhi)流(liu)(liu)、低(di)壓(ya)高頻交(jiao)流(liu)(liu)（如電(dian)(dian)(dian)(dian)子(zi)變壓(ya)器的(de)(de)輸出(chu)(chu)）等。而LED驅動(dong)電(dian)(dian)(dian)(dian)源(yuan)(yuan)的(de)(de)輸出(chu)(chu)則(ze)大多數為(wei)可隨LED正向壓(ya)降值變化而改變電(dian)(dian)(dian)(dian)壓(ya)的(de)(de)恒(heng)定(ding)電(dian)(dian)(dian)(dian)流(liu)(liu)源(yuan)(yuan)。

LED抗浪(lang)涌(yong)(yong)的(de)(de)(de)(de)能(neng)力是比(bi)較差的(de)(de)(de)(de)，特別(bie)是抗反(fan)向電(dian)(dian)壓(ya)能(neng)力。加強(qiang)這(zhe)方面的(de)(de)(de)(de)保(bao)護也(ye)很重要。有(you)(you)些(xie)LED燈(deng)裝在戶外(wai)，如(ru)LED路燈(deng)。由于(yu)電(dian)(dian)網負(fu)載的(de)(de)(de)(de)啟甩和雷(lei)擊(ji)的(de)(de)(de)(de)感應，從(cong)電(dian)(dian)網系統會(hui)侵入各種浪(lang)涌(yong)(yong)，有(you)(you)些(xie)浪(lang)涌(yong)(yong)會(hui)導致LED的(de)(de)(de)(de)損壞。因此分(fen)析中科慧(hui)寶的(de)(de)(de)(de)驅動(dong)電(dian)(dian)源(yuan)在浪(lang)涌(yong)(yong)保(bao)護方面應該(gai)有(you)(you)一定的(de)(de)(de)(de)欠缺，而(er)至于(yu)電(dian)(dian)源(yuan)及燈(deng)具頻繁更換，LED驅動(dong)電(dian)(dian)源(yuan)要有(you)(you)抑制浪(lang)涌(yong)(yong)的(de)(de)(de)(de)侵入，保(bao)護LED不被損壞的(de)(de)(de)(de)能(neng)力。電(dian)(dian)源(yuan)除了(le)常規的(de)(de)(de)(de)保(bao)護功能(neng)外(wai)，最(zui)好在恒流(liu)輸出中增加LED溫度(du)負(fu)反(fan)饋，防止(zhi)LED溫度(du)過(guo)高(gao)要符合安規和電(dian)(dian)磁兼容的(de)(de)(de)(de)要求。

萬用表測led的安規的方法

把萬用(yong)表的(de)二極管檔搭接在燈珠的(de)兩端即可測量它的(de)電壓

led燈珠不接地線會怎樣

LED燈(deng)具(ju)不接(jie)(jie)地(di)(di)線的(de)(de)(de)危害Ⅰ類燈(deng)具(ju)在(zai)實(shi)際運用過程中(zhong)，若(ruo)不接(jie)(jie)地(di)(di)線、假接(jie)(jie)地(di)(di)或者接(jie)(jie)地(di)(di)不良時，可能造成(cheng)的(de)(de)(de)隱患有(you)產(chan)(chan)品漏電(dian)(dian)(dian)(dian)(不符合安(an)(an)規(gui)GB7000.1)隱患、燈(deng)具(ju)產(chan)(chan)生的(de)(de)(de)類似感應電(dian)(dian)(dian)(dian)、靜電(dian)(dian)(dian)(dian)等無法得到(dao)有(you)效的(de)(de)(de)釋放等等缺陷。例如(ru)電(dian)(dian)(dian)(dian)源漏電(dian)(dian)(dian)(dian)時若(ruo)人體(ti)直接(jie)(jie)或者間接(jie)(jie)觸摸會(hui)導(dao)(dao)致(zhi)觸電(dian)(dian)(dian)(dian)，由(you)于外(wai)(wai)界環境(jing)因數導(dao)(dao)致(zhi)產(chan)(chan)生感應電(dian)(dian)(dian)(dian)、靜電(dian)(dian)(dian)(dian)等現(xian)象時，會(hui)造成(cheng)燈(deng)具(ju)內部(bu)LED光(guang)源的(de)(de)(de)損壞或者類似觸電(dian)(dian)(dian)(dian)的(de)(de)(de)安(an)(an)全隱患，故作為(wei)Ⅰ類燈(deng)具(ju)來講，接(jie)(jie)地(di)(di)是一項必不可少的(de)(de)(de)安(an)(an)規(gui)項目，作為(wei)LED燈(deng)具(ju)中(zhong)的(de)(de)(de)戶外(wai)(wai)產(chan)(chan)品例如(ru)LED路燈(deng)、LED戶外(wai)(wai)景觀燈(deng)、投光(guang)燈(deng)等系列照明產(chan)(chan)品是必須要滿足(zu)以上要求的(de)(de)(de)。

LED燈具接220V電源的安規（防觸電）問題

用(yong)(yong)(yong)阻容(rong)(rong)降壓(ya)可(ke)直(zhi)接(jie)(jie)接(jie)(jie)220V，即：用(yong)(yong)(yong)1個(ge)(ge)(ge)0.33--0.47微法(fa)耐(nai)壓(ya)在(zai)400V以上(shang)的(de)(de)電(dian)(dian)容(rong)(rong)，電(dian)(dian)容(rong)(rong)上(shang)并聯(lian)(lian)1個(ge)(ge)(ge)500K--1M的(de)(de)電(dian)(dian)阻（關電(dian)(dian)后(hou)電(dian)(dian)容(rong)(rong)的(de)(de)釋(shi)放），在(zai)串(chuan)聯(lian)(lian)1個(ge)(ge)(ge)600--1K的(de)(de)電(dian)(dian)阻限流，2個(ge)(ge)(ge)電(dian)(dian)阻功率在(zai)1/4W就夠了，就可(ke)以直(zhi)接(jie)(jie)接(jie)(jie)LED接(jie)(jie)220V了，但是，LED必須使用(yong)(yong)(yong)對稱(cheng)的(de)(de)2組(zu)(zu)，你可(ke)25個(ge)(ge)(ge)LED串(chuan)聯(lian)(lian)成1組(zu)(zu)，共2組(zu)(zu)，再(zai)把2組(zu)(zu)的(de)(de)正負(fu)極端相互(hu)并聯(lian)(lian)，再(zai)接(jie)(jie)經阻容(rong)(rong)降壓(ya)的(de)(de)電(dian)(dian)源，LED不管什么(me)顏色均可(ke)，但2組(zu)(zu)必須對稱(cheng)，我曾(ceng)實驗過(guo)，不用(yong)(yong)(yong)2組(zu)(zu)相互(hu)并聯(lian)(lian)的(de)(de)方法(fa)很容(rong)(rong)易燒LED，我用(yong)(yong)(yong)該法(fa)做了1個(ge)(ge)(ge)72頭的(de)(de)過(guo)道燈已使用(yong)(yong)(yong)2年多，效果不錯。

以上就是天成小編對(dui)于led燈珠安規 萬用(yong)表測LED的(de)方(fang)法問題(ti)和相關問題(ti)的(de)解(jie)答了，希望對(dui)你有用(yong) 【責任編輯：燈漂亮】