大家好今天來介(jie)紹(shao)led燈珠芯片算法(fa)(led燈珠怎么計算匹配電流(liu))的(de)問題，以下(xia)是小編對此問題的(de)歸納(na)整理，來看看吧。

文章目錄列表:

• 1、led燈珠怎么計算
• 2、LED芯片啟動電壓怎么算
• 3、led芯片是怎么計算數量的
• 4、每個LED燈珠的流明如何計算。射燈低壓和寬壓的不同適用哪方面請高人指點。謝

led燈珠怎么計算

LED燈珠(zhu)正確(que)計算(suan)方法

LED燈珠耗(hao)電(dian)量(liang)低，由于輸出電(dian)壓低，因而(er)更加安(an)全，產品優(you)秀科學的防水(IP68)抗壓性(xing)能，采用(yong)全封膠方案，可以泡在水底(di)不會(hui)進(jin)水，保證產品的戶外(wai)使用(yong)，而(er)且光亮度好，越(yue)來越(yue)多的商家開始選用(yong)LED燈珠作(zuo)為戶外(wai)招牌。

當然，在選用LED燈(deng)珠(zhu)做招牌的(de)同時，也要合理的(de)計(ji)算LED的(de)功(gong)率(lv)大(da)(da)小來配合適的(de)電(dian)源(yuan)，市(shi)場上LED電(dian)源(yuan)品牌眾(zhong)多(duo)，往(wang)往(wang)購買者想購買到價(jia)格合適又穩定的(de)LED開關電(dian)源(yuan)。其實(shi)只要購買正規生產廠家(jia)及(ji)合適的(de)計(ji)算LED的(de)功(gong)率(lv)正確的(de)的(de)使用方(fang)(fang)可實(shi)現。現在介紹一(yi)種簡(jian)單(dan)的(de)計(ji)算LED外露燈(deng)珠(zhu)功(gong)率(lv)的(de)方(fang)(fang)法(fa)給大(da)(da)家(jia):

如:9mmLED燈珠

額定電壓:5V

額定電(dian)流:18mA-25mA

單顆LED燈功率=額定電(dian)壓×額定電(dian)流 即:5V×18mA=5V×0.018A=0.09W

最大(da)功率(lv):5V×25mA=5V×0.025A=0.125W

(一(yi)般白色電流為18mA，紅色電流為25mA。不(bu)(bu)同的廠(chang)家生產出來的燈珠電流不(bu)(bu)同，因此(ci)請慎計算

LED芯片啟動電壓怎么算

電(dian)流并聯增(zeng)倍(bei)(bei)，串聯電(dian)壓增(zeng)倍(bei)(bei)具體值(zhi)按倍(bei)(bei)數計算。例如：一只(zhi)LED 工(gong)作電(dian)壓為3.2V 20MA，二(er)個并聯工(gong)作所需(xu)電(dian)流為40MA，電(dian)壓不變。

串(chuan)聯(lian)(lian)電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)電(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)關(guan)(guan)系(xi)和并(bing)(bing)聯(lian)(lian)電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)電(dian)(dian)(dian)(dian)流(liu)(liu)電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)關(guan)(guan)系(xi)分別如下：1.串(chuan)聯(lian)(lian)電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)電(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)關(guan)(guan)系(xi)：串(chuan)聯(lian)(lian)電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)電(dian)(dian)(dian)(dian)流(liu)(liu)處處相(xiang)等(deng)，電(dian)(dian)(dian)(dian)壓(ya)(ya)倍(bei)減(jian)。如一(yi)只(zhi)(zhi)(zhi)LED 工(gong)作電(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)3.2V 5A，兩(liang)只(zhi)(zhi)(zhi)串(chuan)聯(lian)(lian)后電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)仍(reng)為(wei)5A，而電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)會(hui)下降6.4V。所以(yi)2只(zhi)(zhi)(zhi)LED燈串(chuan)聯(lian)(lian)后會(hui)看到燈點不亮，是(shi)因為(wei)電(dian)(dian)(dian)(dian)壓(ya)(ya)下降了。2.并(bing)(bing)聯(lian)(lian)電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)電(dian)(dian)(dian)(dian)流(liu)(liu)、電(dian)(dian)(dian)(dian)壓(ya)(ya)的(de)關(guan)(guan)系(xi)：并(bing)(bing)聯(lian)(lian)電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)電(dian)(dian)(dian)(dian)壓(ya)(ya)不變(bian)，電(dian)(dian)(dian)(dian)流(liu)(liu)倍(bei)增。如一(yi)只(zhi)(zhi)(zhi)LED 工(gong)作電(dian)(dian)(dian)(dian)壓(ya)(ya)為(wei)3.2V 5A，兩(liang)只(zhi)(zhi)(zhi)并(bing)(bing)聯(lian)(lian)后電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)的(de)電(dian)(dian)(dian)(dian)流(liu)(liu)為(wei)10A，而電(dian)(dian)(dian)(dian)路(lu)上(shang)(shang)的(de)電(dian)(dian)(dian)(dian)壓(ya)(ya)仍(reng)為(wei)3.2V。“使用(yong)(yong)的(de)時候用(yong)(yong)并(bing)(bing)聯(lian)(lian)的(de)接(jie)口12V，充電(dian)(dian)(dian)(dian)的(de)時候用(yong)(yong)串(chuan)聯(lian)(lian)的(de)接(jie)口48V”，這(zhe)個想法(fa)是(shi)可以(yi)的(de)，但實際(ji)接(jie)線(xian)會(hui)較復雜(za)，并(bing)(bing)且需要一(yi)個復雜(za)的(de)多位換(huan)向(xiang)開關(guan)(guan)用(yong)(yong)來轉換(huan)充電(dian)(dian)(dian)(dian)和使用(yong)(yong)狀(zhuang)態。

led芯片是怎么計算數量的

1. 這個(ge)燈(deng)(deng)板(ban)(ban)是一個(ge)多瓦數共(gong)用的板(ban)(ban)，可以根據(ju)功率需要在燈(deng)(deng)板(ban)(ban)適當(dang)位置貼(tie)上燈(deng)(deng)珠(zhu)和(he)0Ω電阻(zu)（或短接(jie)其焊盤）組成不同串并數的組合，燈(deng)(deng)板(ban)(ban)只(zhi)是貼(tie)上燈(deng)(deng)珠(zhu)無法點亮。

2. 根據燈珠串并數(shu)(shu)和燈珠參數(shu)(shu)（電(dian)壓(ya)，電(dian)流）算出燈板的電(dian)流和電(dian)壓(ya)

比如燈珠參數3V 60mA ，燈板10串 5并

燈板電流=60mA×5并=300mA

燈(deng)板電壓=3V×10串=30V

如果是(shi)直流(liu)供電提供符合的燈(deng)板電流(liu)電壓(ya)就可(ke)以了(le)。

比如燈板電(dian)壓30V，電(dian)流300mA，直(zhi)流電(dian)源輸出50V

電(dian)阻分(fen)壓(ya)=50V-30V=20V

電阻(zu)阻(zu)值=20V×300mA=6歐(ou)姆

如果是市電(dian)供電(dian)，需(xu)要符合參數的驅動電(dian)源才可以點亮燈板。

每個LED燈珠的流明如何計算。射燈低壓和寬壓的不同適用哪方面請高人指點。謝

流明(ming)跟燈珠芯(xin)片有(you)關系，一般來說尺寸(cun)大，流明(ming)值(zhi)會高(gao)點，不同廠家的芯(xin)片又有(you)差別，電壓看客戶的要(yao)求，沒有(you)什(shen)么(me)特別的要(yao)求

以上就是小編對(dui)于led燈珠芯片(pian)算法(led燈珠怎(zen)么計(ji)算匹(pi)配電流)問題(ti)和相關問題(ti)的解答了，希(xi)望對(dui)你有(you)用