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id="2dkkfb9" class="searchbox"><div id="d0msuop" class="searchLt"><div id="oc3gd8a" class="tabs"><a href="JavaScript:;" data-type="product" class="active">產(chǎn)品</a><a href="JavaScript:;" data-type="member" class="">公司</a><a href="JavaScript:;" data-type="article" class="">資訊</a><a href="JavaScript:;" data-type="exhibition" class="">展會(huì)</a></div><div id="vj4d3rg" class="clearfix searchWrap"><div id="2qqcyse" class="searchInput"><input type="text" name="keywords" placeholder="請輸入搜索關(guān)鍵詞" id="kd"><a href="javascript:void(0)" class="searchBtn" id="search">搜索</a></div></div></div></div></header><nav class="navbox"><div id="enr8qxu" class="container"><ul><li id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁</span></a></li><li id = "index_company"><a ><span>企業(yè)名錄</span></a></li><li id = "index_product"><a href="http://www.cdcfah.com/cp/"><span>產(chǎn)品供應(yīng)</span></a></li><li id = "index_news"><a href="http://www.cdcfah.com/zx/"><span>新聞資訊</span></a></li><li id = "index_article"><a href="http://www.cdcfah.com/xw/"><span>行業(yè)資訊</span></a></li><li id = "index_show"><a href="http://www.cdcfah.com/zh/"><span>展會(huì)信息</span></a></li></ul></div></nav><section class="wrap clearfix"><section class="container clearfix tcPro"><section class="home-main container clearfix"><div id="72ovxjl" class="twoCol"><div id="vi977qs" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_zmgy/">照明工業(yè)</a>?<a href="http://www.cdcfah.com/cp/second-zmgy_zmytdj/">專門用途燈具</a>?<a href="http://www.cdcfah.com/cp/third-zmytdj_leddengju/">LED燈具</a>?上海大功率LED價(jià)格多少歡迎來電上海先盛照明電器供應(yīng)</p><div id="dmbyvhe" class="leftbox clearfix"><h1>上海大功率LED價(jià)格多少歡迎來電上海先盛照明電器供應(yīng)</h1><div id="vetpgdf" class="proBig"><div id="cqskcol" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596403561254/1671752.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7449cdu" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596403561254/1671752.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="74nulxz" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海大功率LED價(jià)格多少,LED</p><p><span>***更新：</span>2021-01-09 10:08:56</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="yh2mvm3" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海先盛照明電器有限公司</a></p><p><span>聯(lián)系人：</span>顧勇軍</p><p><span>郵箱: </span>522366548@qq.com</p><p><span>電話: </span>13301861712</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>021-54169416</p><p><span>地址: </span>陶干路1199號</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="8vhtfwq" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="hlnpwdf" class="box"><p><p> 這個(gè)黑體加熱的溫度稱之為該光源的顏色溫度，簡稱色溫。其單位用“K”開爾文表示。CorrelatedColorTemperature:但實(shí)際上，絕大多數(shù)照明光源的光色并不能恰好在黑體輻射線上，于是RaymondDavis等人提出了相關(guān)色溫的概念，其思想是在均勻色品圖上用距離短的溫度來表示光源的相關(guān)色溫，用K氏溫度表示，上海大功率LED價(jià)格多少。CIE1931色度圖相關(guān)色溫，以及u,v坐標(biāo)，x,y坐標(biāo)對比：明白相關(guān)色溫的概念，色溫可以用積分球測定，以及可以知道坐標(biāo)，SDCM，CRI，光通量等，機(jī)器如下：色容差SDCM同樣的相關(guān)色溫，坐標(biāo)不同，給人的感覺是完全不同的，如：同樣是3000K相關(guān)色溫的兩個(gè)LED燈珠色容差：表征光色電檢測系統(tǒng)軟件計(jì)算的X，Y值（uv)與標(biāo)準(zhǔn)光源之間的差別，數(shù)值越小，準(zhǔn)確度越高，光的顏色就越**。圈圈可以理解為步長（step)，分7步，5步，3步，2步，1步。CREE燈珠一般出廠都在4步以內(nèi)；我們現(xiàn)在的SMD2835燈珠，一般都在5步以內(nèi)，一般為2-3步不等；色漂，隨著電流不同，溫度或者時(shí)間不同，色溫出線飄逸的現(xiàn)象。越小越好，上海大功率LED價(jià)格多少。光品質(zhì)：色容差與色溫的關(guān)系，你真的懂？光品質(zhì)：色容差與色溫的關(guān)系，你真的懂？/content/17/0720/09/27356145_tml燈珠電壓以上圖表燈珠電壓都是按3V的倍數(shù)計(jì)算。LED，上海大功率LED價(jià)格多少，就選上海先盛照明電器有限公司，有想法的可以來電咨詢！上海大功率LED價(jià)格多少</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海大功率LED價(jià)格多少,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596403561254/1671752.png"></div><p>上海先盛照明電器有限公司供應(yīng)ledLED燈珠）研發(fā)、生產(chǎn)和銷售。可預(yù)約工程師提供燈珠快速選型服務(wù)，**提供樣品測試，有效解決您的選型難題！客服咨詢QQ:選型推薦：2835燈珠，2835多少w，2835燈珠好還是5730好？led燈珠有幾種顏色？表貼和直插燈珠的區(qū)別是什么？如何選擇led燈珠，怎么選擇led燈珠，高亮度led燈珠led燈珠規(guī)格型號，led燈珠規(guī)格型號參數(shù)？led燈珠多少伏，，照明燈珠多少伏貼片led燈珠型號對照表，貼片led燈珠型號參數(shù)LED燈珠壞了怎么修,led燈不亮了怎么修?發(fā)光二極管，發(fā)光二極管電壓是多少？發(fā)光二極管耐壓多少伏?白色發(fā)光二極管耐壓多少伏？貼片led燈珠，led燈珠型號規(guī)格，廠家怎么區(qū)分？led燈珠一個(gè)是多少瓦，led貼片怎么看瓦數(shù)?led燈珠有哪些型號，大功率led燈珠有哪些型號？led燈珠價(jià)格，3014led燈珠價(jià)格，大功率led價(jià)格表紅外發(fā)光二極管，紅外發(fā)光二極管參數(shù)有哪些？7030燈珠，7030燈珠電壓多少？7030燈珠多少瓦?7020燈珠，7020燈珠參數(shù)，7020燈珠功率多少瓦？大功率燈珠，大功率燈珠參數(shù)，大功率燈珠種類？5050燈珠，5050燈珠電壓電流，5050燈珠是多少瓦？led燈珠型號對照表，貼片led燈珠型號對照表如何判斷哪個(gè)燈珠壞了，怎樣維修led燈珠？3535燈珠。重慶防水LED支架燈上海先盛照明電器有限公司是一家專業(yè)提供LED的公司，歡迎您的來電！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海大功率LED價(jià)格多少,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402597856969207/5545199.png"></div><p style="text-indent:25px">由于磁芯的工作頻率范圍、驅(qū)動(dòng)電路、控制電路等原因都可能很限制熒光燈的調(diào)節(jié)范圍。①調(diào)頻范圍內(nèi)不易實(shí)現(xiàn)軟開關(guān)。輕載時(shí)，不能實(shí)現(xiàn)軟開關(guān)，并使功率開關(guān)管上的電壓應(yīng)力加大。硬開關(guān)的瞬態(tài)過渡是EMI輻射的主要來源。如果半橋逆變器不工作在軟開關(guān)工作狀態(tài)，則會(huì)導(dǎo)致逆變器的損耗加大，工作效率降低。①開關(guān)工作頻率在紅外遙控的工作頻率范圍內(nèi)時(shí)，熒光燈將發(fā)射低電平的紅外線，如果調(diào)頻范圍很寬，其他的紅外遙控裝置如電視機(jī)等將會(huì)受到影響。</p><p>為南來北往的旅客創(chuàng)造潮酷新穎的娛樂休閑體驗(yàn)。鐵歌蘇州相城吾悅廣場3層瀑布屏3層巨型瀑布屏位于購物中心的南側(cè)廣場區(qū)域，項(xiàng)目采用裸晶貼膜屏P10型號，安裝面積達(dá)317平方米。結(jié)合實(shí)際現(xiàn)場使用環(huán)境要求及建筑特點(diǎn)，鐵歌科技為其量身定制了貼膜屏LED顯示解決方案，既保證了屏體通透采光、防水(IP65)、防潮、抗紫外線等，同時(shí)還確保了產(chǎn)品安裝與后期維護(hù)，方便快捷，徹底打破了傳統(tǒng)LED顯示屏在玻璃幕墻上應(yīng)用的局限性。從場景應(yīng)用上來說，3層折疊錯(cuò)位安裝于樓層高，以透明的貼膜屏形成3層人工瀑布形狀，再搭載水流的動(dòng)態(tài)內(nèi)容，則可以達(dá)到直逼真瀑布的視覺效果。AET620㎡吉林紅旗街天幕吉林紅旗街的天幕隧道面積達(dá)620㎡，具有震撼的裸眼3D效果，兼具畫面清晰、柔和，抬頭或近距離觀看舒適等視覺體驗(yàn)，因此在現(xiàn)場，不僅能體驗(yàn)到奇妙浩瀚的宇宙，還能體驗(yàn)到極具科技感的飛船，極速消失在宇宙里，讓人始料未及。具有逼真臨場感的紅旗街天幕，成為長春人民的打卡地之一。中潤光電LED網(wǎng)幕月亮在央視中秋晚會(huì)升起在今年央視中秋晚會(huì)的精彩篇章中，由中潤光電承制的網(wǎng)幕“月亮”，猶如真實(shí)的月亮緩緩上升、移動(dòng)、漂浮、懸掛，與多媒體視覺相互配合。上海先盛照明電器有限公司為您提供LED。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海大功率LED價(jià)格多少,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596156676167/3746494.png"></div><p style="text-indent:25px">常用調(diào)光方法的工作原理 1、脈沖寬度調(diào)制（PWM）調(diào)光法這種調(diào)光控制法是利用調(diào)節(jié)高頻逆變器**率開關(guān)管的脈沖占空比，從而實(shí)現(xiàn)燈輸出功率的調(diào)節(jié)。半橋逆變器的比較大占空比為0.5，以確保半橋逆變器中的兩個(gè)功率開關(guān)管之間有一個(gè)死時(shí)間，以避免兩個(gè)功率開關(guān)管由于共態(tài)導(dǎo)通而損壞。這種調(diào)光控制法能使功率開關(guān)管導(dǎo)通時(shí)工作在零電壓開關(guān)（ZVS）狀態(tài)，關(guān)斷瞬間需采用吸收電容以達(dá)到ZCS工作條件，這樣即可進(jìn)入ZVS工作方式，這是它的優(yōu)點(diǎn)，同時(shí)EMII和功率開關(guān)管的電應(yīng)力可以明顯降低，然而，如果脈沖占空比太小，以致電感電流不連續(xù)，將會(huì)失去ZVS工作特性，并且由于供電直流電壓較太小，以致電感電流不連續(xù)，將會(huì)失去ZVS工作特性，并且由于供電直流電壓較的工作可靠性降低并加大EMI輻射。上海先盛照明電器有限公司為您提供LED，有需要可以聯(lián)系我司哦！上海大功率LED價(jià)格多少</p><p style="text-indent:25px">上海先盛照明電器有限公司致力于提供LED，有想法可以來我司咨詢！上海大功率LED價(jià)格多少</p><p style="text-indent:25px">由于開關(guān)工作頻率剛好大于諧振頻率，所以可以降低無功功率和提高電路工作效率。由于開關(guān)工作頻率固定，所以可以比較方便地確定燈負(fù)載匹配電路中無源器件的參數(shù)?？稍谳^寬的燈功率范圍內(nèi)（5%~100%）保持ZVS工作條件。在很低的半橋逆變器供電電壓下，電子鎮(zhèn)流器電路將會(huì)失去較開關(guān)特性，會(huì)出現(xiàn)鎮(zhèn)流電感電流不連續(xù)的工作狀態(tài)。然而在直流供電電壓很低的情況下，這種工作狀態(tài)不再是個(gè)問題，這時(shí)功率開關(guān)管的電應(yīng)力和損耗都將很小，即使工作在硬開關(guān)，在低直流供電電壓情況下（如20V）也不會(huì)產(chǎn)生太多的EMI輻射。<span style="display:none;"><span style="display:none;"></span></span>上海大功率LED價(jià)格多少</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2772377.html</p></div></div></div></div></div><div id="aegi8xj" class="page-right twoColRt"><div id="etvsm3v" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="393xtaw" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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