無線led燈珠原理 led燈珠的發光原理 |
| 發布時間:2022-11-15 15:00:02 |
大家好(hao)我(wo)是天成照明LED燈(deng)珠(zhu)廠家小編燈(deng)漂(piao)亮今天我(wo)們(men)來介紹無線(xian)led燈(deng)珠(zhu)原(yuan)理(li) led燈(deng)珠(zhu)的發(fa)光(guang)原(yuan)理(li)的問題，以下(xia)就(jiu)是燈(deng)漂(piao)亮對(dui)此(ci)問題和相關問題的歸納整理(li),一起來看看吧。 文章目錄導航: LED燈珠的發光原理是什么 LED發(fa)光二極(ji)管，是一(yi)種固(gu)態的(de)(de)半導(dao)體器件，它可以直(zhi)接把電轉化為(wei)光。LED的(de)(de)心臟是一(yi)個(ge)半導(dao)體的(de)(de)晶(jing)片，晶(jing)片的(de)(de)一(yi)端附在一(yi)個(ge)支架上，一(yi)端是負極(ji)，另一(yi)端連(lian)接電源的(de)(de)正極(ji)，使整個(ge)晶(jing)片被環(huan)氧樹脂封裝起(qi)來(lai)。 半導(dao)體(ti)(ti)晶片由兩(liang)部分組成(cheng)(cheng)，一(yi)(yi)部分是P型半導(dao)體(ti)(ti)，在(zai)它(ta)里面空穴占主導(dao)地位，另一(yi)(yi)端是N型半導(dao)體(ti)(ti)，在(zai)這邊主要是電子。但(dan)這兩(liang)種半導(dao)體(ti)(ti)連接起來(lai)的時候，它(ta)們(men)之間就形成(cheng)(cheng)一(yi)(yi)個P-N結。 當電(dian)流通過(guo)導(dao)(dao)線(xian)(xian)作用(yong)(yong)(yong)于(yu)這個晶片(pian)的(de)(de)時候(hou)，電(dian)子(zi)就(jiu)會被(bei)推(tui)向(xiang)P區(qu)(qu)，在P區(qu)(qu)里電(dian)子(zi)跟空穴復合，然后(hou)就(jiu)會以(yi)光(guang)子(zi)的(de)(de)形式發(fa)出(chu)能(neng)量，這就(jiu)是LED發(fa)光(guang)的(de)(de)原理(li)。LED 是英文 light emitting diode (發(fa)光(guang)二(er)極(ji)管)的(de)(de)縮(suo)寫，它的(de)(de)基本結構是一塊(kuai)電(dian)致發(fa)光(guang)的(de)(de)半導(dao)(dao)體材料芯片(pian)，用(yong)(yong)(yong)銀膠或白膠固化到支架上(shang)，然后(hou)用(yong)(yong)(yong)銀線(xian)(xian)或金線(xian)(xian)連接芯片(pian)和電(dian)路板，然后(hou)四周用(yong)(yong)(yong)環氧樹脂(zhi)密封，起(qi)到保護內部(bu)芯線(xian)(xian)的(de)(de)作用(yong)(yong)(yong)，最后(hou)安(an)裝(zhuang)外(wai)殼，所以(yi) LED 燈(deng)(deng)的(de)(de)抗(kang)震性能(neng)好。運用(yong)(yong)(yong)領域涉及到手機、臺(tai)燈(deng)(deng)、家電(dian)等日(ri)常家電(dian)和機械生(sheng)產方面。led日(ri)光(guang)燈(deng)(deng)以(yi)質(zhi)(zhi)優(you)、耐用(yong)(yong)(yong)、節(jie)能(neng)為主要(yao)特點，投射角度調節(jie)范(fan)圍大，15W的(de)(de)亮度相(xiang)當于(yu)普(pu)通40W日(ri)光(guang)燈(deng)(deng)。抗(kang)高(gao)溫、防(fang)潮(chao)防(fang)水、防(fang)漏電(dian)。 使用(yong)(yong)(yong)電(dian)壓有(you):110V、220V可選，外(wai)罩可選玻璃或PC材質(zhi)(zhi)。燈(deng)(deng)頭與普(pu)通日(ri)光(guang)燈(deng)(deng)一樣。
LED燈無線如何控制利用了什么技術以及原理 這個(ge)(ge)(ge)控(kong)制(zhi)方(fang)案(an)很(hen)多(duo)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)：利用(yong)ZigBee無(wu)(wu)線(xian)(xian)傳(chuan)感(gan)(gan)(gan)器(qi)(qi)網(wang)(wang)(wang)絡技術對LED節(jie)能(neng)(neng)燈實現遠程控(kong)制(zhi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)方(fang)案(an)，給出(chu)(chu)了(le)詳(xiang)細的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)軟硬(ying)件(jian)(jian)(jian)設(she)(she)計(ji)(ji)。1 自(zi)(zi)組(zu)網(wang)(wang)(wang)控(kong)制(zhi)系(xi)(xi)(xi)(xi)(xi)統及工(gong)(gong)作(zuo)原理(li)為(wei)實現故(gu)障檢(jian)測(ce)、溫度(du)(du)檢(jian)測(ce)、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)檢(jian)測(ce)、亮度(du)(du)檢(jian)測(ce)和(he)(he)控(kong)制(zhi)以及故(gu)障報(bao)警等功(gong)(gong)(gong)能(neng)(neng)，自(zi)(zi)組(zu)網(wang)(wang)(wang)控(kong)制(zhi)系(xi)(xi)(xi)(xi)(xi)統采(cai)(cai)用(yong)了(le)圖(tu)(tu)1所(suo)示(shi)(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)設(she)(she)計(ji)(ji)。 整個(ge)(ge)(ge)無(wu)(wu)線(xian)(xian)網(wang)(wang)(wang)絡是(shi)(shi)由終(zhong)(zhong)端(duan)(duan)節(jie)點(ZigBee Endpoint，ZE)、路由(ZigBee Router，ZR)、和(he)(he)協(xie)調(diao)(diao)器(qi)(qi)(ZigBee Coordinator，ZC)3種設(she)(she)備構成(cheng)。其(qi)(qi)(qi)中(zhong)終(zhong)(zhong)端(duan)(duan)是(shi)(shi)簡化(hua)功(gong)(gong)(gong)能(neng)(neng)設(she)(she)備(Reduced Function Device，RFD)，只能(neng)(neng)與路由或(huo)者協(xie)調(diao)(diao)器(qi)(qi)直(zhi)接(jie)通(tong)(tong)(tong)(tong)(tong)信。路由是(shi)(shi)全功(gong)(gong)(gong)能(neng)(neng)設(she)(she)備(FuU Function Device，FFD)，既可(ke)(ke)(ke)以和(he)(he)路由和(he)(he)終(zhong)(zhong)端(duan)(duan)直(zhi)接(jie)通(tong)(tong)(tong)(tong)(tong)信，也可(ke)(ke)(ke)以和(he)(he)協(xie)調(diao)(diao)器(qi)(qi)直(zhi)接(jie)通(tong)(tong)(tong)(tong)(tong)信。協(xie)調(diao)(diao)器(qi)(qi)是(shi)(shi)PAN協(xie)調(diao)(diao)器(qi)(qi)(PANC)，負責一個(ge)(ge)(ge)PAN區域(yu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)網(wang)(wang)(wang)絡建立(li)及管理(li)。協(xie)調(diao)(diao)器(qi)(qi)收(shou)(shou)集(ji)所(suo)有(you)節(jie)點和(he)(he)路由的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)信息，通(tong)(tong)(tong)(tong)(tong)過RS232發給監(jian)(jian)(jian)控(kong)計(ji)(ji)算機來確(que)定燈的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)亮度(du)(du)、環境溫度(du)(du)、電(dian)(dian)(dian)(dian)(dian)(dian)池電(dian)(dian)(dian)(dian)(dian)(dian)量等。工(gong)(gong)作(zuo)原理(li)：系(xi)(xi)(xi)(xi)(xi)統中(zhong)每個(ge)(ge)(ge)終(zhong)(zhong)端(duan)(duan)、路由分(fen)別(bie)控(kong)制(zhi)一盞燈，每個(ge)(ge)(ge)燈對應(ying)一個(ge)(ge)(ge)ID(終(zhong)(zhong)端(duan)(duan)或(huo)路由加入(ru)(ru)網(wang)(wang)(wang)絡時(shi)(shi)由協(xie)調(diao)(diao)器(qi)(qi)自(zi)(zi)動(dong)(dong)分(fen)配)，各個(ge)(ge)(ge)節(jie)點和(he)(he)路由將(jiang)(jiang)傳(chuan)感(gan)(gan)(gan)器(qi)(qi)收(shou)(shou)集(ji)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)數(shu)(shu)據(ju)通(tong)(tong)(tong)(tong)(tong)過無(wu)(wu)線(xian)(xian)發送到(dao)協(xie)調(diao)(diao)器(qi)(qi)，協(xie)調(diao)(diao)器(qi)(qi)將(jiang)(jiang)收(shou)(shou)到(dao)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)數(shu)(shu)據(ju)通(tong)(tong)(tong)(tong)(tong)過串(chuan)口發送到(dao)監(jian)(jian)(jian)控(kong)計(ji)(ji)算機。如果LED燈出(chu)(chu)現故(gu)障，檢(jian)測(ce)電(dian)(dian)(dian)(dian)(dian)(dian)路會(hui)(hui)(hui)產生報(bao)警信號，報(bao)警信號最終(zhong)(zhong)會(hui)(hui)(hui)發送到(dao)監(jian)(jian)(jian)控(kong)計(ji)(ji)算機，計(ji)(ji)算機會(hui)(hui)(hui)提示(shi)(shi)工(gong)(gong)作(zuo)人員故(gu)障燈的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)ID，讓維護(hu)更便利。另(ling)外終(zhong)(zhong)端(duan)(duan)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)光(guang)敏傳(chuan)感(gan)(gan)(gan)器(qi)(qi)會(hui)(hui)(hui)收(shou)(shou)集(ji)光(guang)照的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)程度(du)(du)，然后(hou)由終(zhong)(zhong)端(duan)(duan)自(zi)(zi)動(dong)(dong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)調(diao)(diao)整光(guang)照的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)亮度(du)(du)。終(zhong)(zhong)端(duan)(duan)也會(hui)(hui)(hui)將(jiang)(jiang)自(zi)(zi)身的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)供電(dian)(dian)(dian)(dian)(dian)(dian)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)傳(chuan)送到(dao)監(jian)(jian)(jian)控(kong)計(ji)(ji)算機，以防節(jie)點缺電(dian)(dian)(dian)(dian)(dian)(dian)而影響使用(yong)。2 系(xi)(xi)(xi)(xi)(xi)統硬(ying)件(jian)(jian)(jian)設(she)(she)計(ji)(ji)系(xi)(xi)(xi)(xi)(xi)統是(shi)(shi)由電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)模(mo)(mo)(mo)塊(kuai)、無(wu)(wu)線(xian)(xian)傳(chuan)輸(shu)(shu)(shu)模(mo)(mo)(mo)塊(kuai)(CC2530、溫度(du)(du)檢(jian)測(ce)、電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)檢(jian)測(ce))、LED驅動(dong)(dong)模(mo)(mo)(mo)塊(kuai)、LED檢(jian)測(ce)模(mo)(mo)(mo)塊(kuai)等組(zu)成(cheng)，具(ju)(ju)體硬(ying)件(jian)(jian)(jian)電(dian)(dian)(dian)(dian)(dian)(dian)路邏輯結構如圖(tu)(tu)2所(suo)示(shi)(shi)。其(qi)(qi)(qi)中(zhong)電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)模(mo)(mo)(mo)塊(kuai)是(shi)(shi)采(cai)(cai)用(yong)市面(mian)常(chang)用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)ASM1117-5.0和(he)(he)ASM1117-3.3，原理(li)簡單(dan)易懂。下面(mian)主(zhu)要介(jie)紹(shao)無(wu)(wu)線(xian)(xian)通(tong)(tong)(tong)(tong)(tong)信模(mo)(mo)(mo)塊(kuai)和(he)(he)LED驅動(dong)(dong)模(mo)(mo)(mo)塊(kuai)。 無(wu)(wu)線(xian)(xian)通(tong)(tong)(tong)(tong)(tong)信模(mo)(mo)(mo)塊(kuai)采(cai)(cai)用(yong)TI公司的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)CC2530模(mo)(mo)(mo)塊(kuai)，CC2530是(shi)(shi)用(yong)于(yu)IEEE 802.15.4、ZigBee和(he)(he)RF4CE應(ying)用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)一個(ge)(ge)(ge)真正的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)片(pian)上系(xi)(xi)(xi)(xi)(xi)統(SoC)解決(jue)方(fang)案(an)。它能(neng)(neng)夠以很(hen)低的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)總(zong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)材料成(cheng)本建立(li)強大(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)網(wang)(wang)(wang)絡節(jie)點。CC2530結合了(le)領先的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)RF收(shou)(shou)發器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)優良性(xing)能(neng)(neng)、業界標準的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)增強型(xing)8051 CPU、系(xi)(xi)(xi)(xi)(xi)統內(nei)可(ke)(ke)(ke)編(bian)程閃(shan)存(cun)、8 KB RAM和(he)(he)許(xu)多(duo)其(qi)(qi)(qi)他強大(da)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)功(gong)(gong)(gong)能(neng)(neng)。CC2530有(you)4種不同的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)閃(shan)存(cun)版本：CC2530F32/64/128/256(分(fen)別(bie)具(ju)(ju)有(you)32/64/128/256 KB閃(shan)存(cun))。CC 2530具(ju)(ju)有(you)不同的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)運(yun)行(xing)模(mo)(mo)(mo)式(shi)，使得它尤其(qi)(qi)(qi)適應(ying)超低功(gong)(gong)(gong)耗(hao)要求的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)系(xi)(xi)(xi)(xi)(xi)統。運(yun)行(xing)模(mo)(mo)(mo)式(shi)之間的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)轉(zhuan)換(huan)時(shi)(shi)間短，進一步確(que)保了(le)低能(neng)(neng)源(yuan)消耗(hao)。CC2530優良的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)性(xing)能(neng)(neng)和(he)(he)具(ju)(ju)有(you)代碼預(yu)取功(gong)(gong)(gong)能(neng)(neng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)低功(gong)(gong)(gong)耗(hao)、8051微控(kong)制(zhi)器(qi)(qi)內(nei)核、32/64/128 KB的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)系(xi)(xi)(xi)(xi)(xi)統內(nei)可(ke)(ke)(ke)編(bian)程閃(shan)存(cun)、8 KBRAM，具(ju)(ju)備在各種供電(dian)(dian)(dian)(dian)(dian)(dian)方(fang)式(shi)下的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)數(shu)(shu)據(ju)保持能(neng)(neng)力并(bing)且(qie)支持硬(ying)件(jian)(jian)(jian)調(diao)(diao)試，具(ju)(ju)有(you)極(ji)(ji)高的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)接(jie)收(shou)(shou)靈敏度(du)(du)和(he)(he)抗干擾性(xing)能(neng)(neng)。它的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)可(ke)(ke)(ke)編(bian)程輸(shu)(shu)(shu)出(chu)(chu)功(gong)(gong)(gong)率(lv)高達(da)4.5 dBm，并(bing)且(qie)只需極(ji)(ji)少的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)外接(jie)元(yuan)件(jian)(jian)(jian)。硬(ying)件(jian)(jian)(jian)電(dian)(dian)(dian)(dian)(dian)(dian)路結構框圖(tu)(tu)如圖(tu)(tu)3所(suo)示(shi)(shi)，其(qi)(qi)(qi)中(zhong)光(guang)控(kong)單(dan)元(yuan)采(cai)(cai)用(yong)TPS851芯片(pian)，溫控(kong)模(mo)(mo)(mo)塊(kuai)采(cai)(cai)用(yong)TC77。 LED驅動(dong)(dong)模(mo)(mo)(mo)塊(kuai)采(cai)(cai)用(yong)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)芯片(pian)是(shi)(shi)PT4115。PT4115是(shi)(shi)一款連(lian)續電(dian)(dian)(dian)(dian)(dian)(dian)感(gan)(gan)(gan)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)導通(tong)(tong)(tong)(tong)(tong)模(mo)(mo)(mo)式(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)降(jiang)壓(ya)(ya)恒流(liu)(liu)(liu)源(yuan)，用(yong)于(yu)驅動(dong)(dong)一顆或(huo)多(duo)顆串(chuan)聯LED。PT4115輸(shu)(shu)(shu)人電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)范(fan)圍從6～30 V，輸(shu)(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)可(ke)(ke)(ke)調(diao)(diao)，最大(da)可(ke)(ke)(ke)達(da)1.2 A。根據(ju)不同的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)(shu)(shu)入(ru)(ru)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)和(he)(he)外部(bu)器(qi)(qi)件(jian)(jian)(jian)，PT4115可(ke)(ke)(ke)以驅動(dong)(dong)高達(da)數(shu)(shu)十W的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)LED。PT4115內(nei)置(zhi)功(gong)(gong)(gong)率(lv)開關(guan)，采(cai)(cai)用(yong)高端(duan)(duan)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)采(cai)(cai)樣(yang)設(she)(she)置(zhi)LED平均電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)，并(bing)通(tong)(tong)(tong)(tong)(tong)過DIM引腳可(ke)(ke)(ke)以接(jie)受模(mo)(mo)(mo)擬調(diao)(diao)光(guang)和(he)(he)很(hen)寬(kuan)范(fan)圍的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)PWM調(diao)(diao)光(guang)。當(dang)(dang)DIM的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)低于(yu)0.3 V時(shi)(shi)，功(gong)(gong)(gong)率(lv)開關(guan)關(guan)斷(duan)，PT4115進入(ru)(ru)極(ji)(ji)低工(gong)(gong)作(zuo)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)待(dai)機狀態(tai)。驅動(dong)(dong)原理(li)圖(tu)(tu)如圖(tu)(tu)4所(suo)示(shi)(shi)。PT4115和(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)感(gan)(gan)(gan)L、電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)采(cai)(cai)樣(yang)電(dian)(dian)(dian)(dian)(dian)(dian)阻RS形(xing)成(cheng)一個(ge)(ge)(ge)自(zi)(zi)振蕩(dang)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)連(lian)續電(dian)(dian)(dian)(dian)(dian)(dian)感(gan)(gan)(gan)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)模(mo)(mo)(mo)式(shi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)降(jiang)壓(ya)(ya)、恒流(liu)(liu)(liu)LED控(kong)制(zhi)器(qi)(qi)。VIN上電(dian)(dian)(dian)(dian)(dian)(dian)時(shi)(shi)，L和(he)(he)RS的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)初始電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)為(wei)零，LED輸(shu)(shu)(shu)出(chu)(chu)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)也為(wei)零。這時(shi)(shi)候，CS比(bi)較(jiao)(jiao)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)(shu)(shu)出(chu)(chu)為(wei)高，內(nei)部(bu)功(gong)(gong)(gong)率(lv)開關(guan)導通(tong)(tong)(tong)(tong)(tong)，SW的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)位為(wei)低。電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)通(tong)(tong)(tong)(tong)(tong)過L、RS、LED和(he)(he)內(nei)部(bu)功(gong)(gong)(gong)率(lv)開關(guan)從VIN流(liu)(liu)(liu)到(dao)地(di)，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)上升(sheng)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)斜率(lv)由VIN、L和(he)(he)LED壓(ya)(ya)降(jiang)決(jue)定，在RS上產生一個(ge)(ge)(ge)壓(ya)(ya)差(cha)VCSN，當(dang)(dang)VIN-VCSN>115mV時(shi)(shi)，CS比(bi)較(jiao)(jiao)器(qi)(qi)的(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)(de)輸(shu)(shu)(shu)出(chu)(chu)變低，內(nei)部(bu)功(gong)(gong)(gong)率(lv)開關(guan)關(guan)斷(duan)，電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)(liu)(liu)以另(ling)一個(ge)(ge)(ge)斜率(lv)流(liu)(liu)(liu)過L、RS、LED和(he)(he)肖(xiao)特基二極(ji)(ji)管(D)，當(dang)(dang)VIN-VCSN led燈原理及構成 一(yi)個發光結構就是(shi)燈(deng)內(nei)如(ru)綠豆大小般的燈(deng)珠。雖然它(ta)的體積很小，但它(ta)卻內(nei)有乾坤。 將LED燈珠結構(gou)放(fang)大之后(hou)，會發現有顆形如芝(zhi)麻大小的晶片。 這個晶(jing)片結(jie)構極其復雜，一(yi)共分為好幾層(ceng)(ceng)：最上層(ceng)(ceng)叫做P型(xing)半(ban)導(dao)體層(ceng)(ceng)、中間層(ceng)(ceng)為發光層(ceng)(ceng)、最下層(ceng)(ceng)叫做N型(xing)半(ban)導(dao)體層(ceng)(ceng)。 2發光原(yuan)理 從物理學(xue)角度來理解：當電(dian)流通過晶片(pian)時，N型半導體內的(de)電(dian)子(zi)與P型半導體內的(de)空穴在發光(guang)層劇烈地(di)碰撞復合產生光(guang)子(zi)，以(yi)光(guang)子(zi)的(de)形(xing)式發出能(neng)量（即大家(jia)看見的(de)光(guang)）發光(guang)二極(ji)管(guan) LED也被稱之為發光二極管，它(ta)的體積極小并(bing)且很脆弱(ruo)，不方便于(yu)直接使用(yong)。于(yu)是設(she)計者就為它(ta)添加(jia)了(le)一個(ge)保(bao)護外(wai)殼并(bing)將它(ta)封(feng)存在內，這樣就構成了(le)易于(yu)使用(yong)的LED燈(deng)珠。 將許多LED燈珠(zhu)拼連在一起后，就可以(yi)構成各種各樣的LED燈。 以上就是天成小編對于無線led燈珠原(yuan)理 led燈珠的發(fa)光原(yuan)理問題和相關(guan)問題的解答(da)了，希望對你有用 【責任(ren)編輯：燈漂亮】 |
