室外LED有哪些歡迎咨詢上海先盛照明電器供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="由于開(kāi)關(guān)工作頻率剛好大于諧振頻率，所以可以降低無(wú)功功率和提高電路工作效率。由于開(kāi)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(wú)源器件的參數(shù)。可在較寬的燈功率范圍內(nèi)（5%~100%）保持ZVS工作條件。在很低的半橋逆變器供電電壓下，"><meta name="keywords" content="室外LED有哪些,LED"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta name="baidu-site-verification" content="OBVzrC9aaQ" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center id="qgqbi"></center></dfn><sub id="qgqbi"></sub><u 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id="rgx2ihb" class="proBig"><div id="xmz2asx" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596676139177/2391051.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hw8qamo" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596676139177/2391051.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="8ub5kx7" 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>室外LED有哪些,LED</p><p><span>***更新：</span>2020-12-21 01:06:15</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="3y8xegn" 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(hào)</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="p2itqxz" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="dpg9fhj" class="box"><p><p style="text-indent:25px">由于開(kāi)關(guān)工作頻率剛好大于諧振頻率，所以可以降低無(wú)功功率和提高電路工作效率。由于開(kāi)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(wú)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(kāi)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)，室外LED有哪些。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(wèn)題，這時(shí)功率開(kāi)關(guān)管的電應(yīng)力和損耗都將很小，室外LED有哪些，即使工作在硬開(kāi)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>LED，就選上海先盛照明電器有限公司，室外LED有哪些，用戶的信賴之選，歡迎您的來(lái)電哦！室外LED有哪些</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="室外LED有哪些,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596676139177/2391051.png"></div><p> 半導(dǎo)體的物理伏安特性伏安特性所謂伏安特性，即是流過(guò)P-N結(jié)的電流隨電壓變化的特性，在示波器上能十分形象地展示這種變化。一根完整的伏安曲線包括正向特性與反向特性。通常，反向特性曲線變化較為陡峭，當(dāng)電壓超過(guò)某個(gè)閾值時(shí)，電流會(huì)出現(xiàn)指數(shù)式上升。通?？捎梅聪驌舸╇妷?，反向電流和正向電壓三個(gè)參數(shù)來(lái)進(jìn)行伏安特性曲線的描述。所以，LED的工作前提：LED屬于半導(dǎo)體，有單向?qū)щ娦?，流過(guò)的電流和電壓不成線性正比。LED光通量隨電流增大而增大，但也不成正比。工作在低壓的直流電下，一般電壓在2-5VDC之間，紅光一般工作低壓低，藍(lán)光（白光）工作電壓在3-4V，而紫外光電壓在4-5V之間；電壓不能過(guò)高，大于某個(gè)閾值的時(shí)候，電流會(huì)指數(shù)式上升，沒(méi)有保護(hù)電路的話，一般會(huì)擊穿晶片；反向電壓一般為10V左右，大不得超過(guò)15V，否則會(huì)反向擊穿燈珠。（接反會(huì)導(dǎo)致反向電壓，過(guò)高會(huì)造成損壞）LED各類型封裝芯片的一般額定電壓，額定電流表格SMD中小功率SMD中小功率封裝形式的電壓，電流都不一定的。一般是3-5V，不過(guò)也有特意幾個(gè)晶片串聯(lián)一起的高壓燈珠，有6V，9V，18V，24V等。<span style="display:none;"></span>河南家用LED哪里買上海先盛照明電器有限公司為您提供LED，有需求可以來(lái)電咨詢！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="室外LED有哪些,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402597764566974/7165671.png"></div><p>led線條燈和led護(hù)欄管主要用于勾勒大樓建筑輪廓或是組成一個(gè)動(dòng)態(tài)的大屏幕，而led洗墻燈主要是打光照射建筑外墻亮化。led投光燈是對(duì)建筑柱子或者頂部局部打亮。它的照射高度比較高，但燈光寬度范圍不遠(yuǎn)。led點(diǎn)光源對(duì)建筑主要是起到點(diǎn)綴燈光作用。很多樓體會(huì)在每層裝一個(gè)點(diǎn)光源用來(lái)點(diǎn)綴。不過(guò)還有一個(gè)作用是用來(lái)做動(dòng)態(tài)點(diǎn)陣屏。樓體亮化工程在接到亮化工程項(xiàng)目時(shí)，一定要先針對(duì)大樓設(shè)計(jì)好亮化效果圖，先讓客戶確定效果圖?？蛻魸M意后，我們?cè)诟鶕?jù)效果圖選擇適合的led亮化燈具，然后根據(jù)建筑的CAD圖紙算出具體需要的燈具數(shù)量，我們?cè)诟鶕?jù)具體數(shù)量配好開(kāi)關(guān)電源和控制器。一定要注意如果有l(wèi)ed投光燈和led洗墻燈這些的話，要先看效果圖上面燈具具體要照射的高度是多少，在根據(jù)這個(gè)來(lái)選擇燈具光源透鏡度數(shù)和功率大小。因?yàn)椴煌哥R度數(shù)和不同功率，照射的高度是不一樣的。所以建議接到項(xiàng)目時(shí)，一定要選擇一家專業(yè)的，有經(jīng)驗(yàn)和值得信賴的led亮化燈具廠家。戶外樓體亮化是城市夜景亮化很重要的一部分，不僅美化了城市，也提升了城市的形象，可以很好的宣傳城市的**度，讓城市的夜景變得更吸引人。戶外樓體亮化與城市的整體規(guī)劃有很密切的聯(lián)系，是城市夜景亮化很重要的組成部分。</p><p style="text-indent:25px">熒光燈的調(diào)光控制方法是隨著電子鎮(zhèn)流器技術(shù)不斷創(chuàng)新發(fā)展而提高的。近年來(lái)隨著高頻電子型鎮(zhèn)流器的出現(xiàn)改變了鎮(zhèn)流器的技術(shù)性能，逐步推出效率gao、性能好、調(diào)光范圍寬、智能化程度高的高頻可調(diào)光電子式熒光燈鎮(zhèn)流器，這種鎮(zhèn)流器作為熒光燈ECG(電子控制裝置)已成為當(dāng)今熒光燈調(diào)光控制的主流產(chǎn)品。調(diào)光電子鎮(zhèn)流器控制線數(shù)可分為，二線制和四線制兩種。四線制調(diào)光電子鎮(zhèn)流器是現(xiàn)在得到zui為廣泛應(yīng)用的，其由調(diào)光控制器通過(guò)二條主電源線為鎮(zhèn)流器提供功率支持，二條低電壓控制線與調(diào)光電子鎮(zhèn)流器調(diào)光控制接口配套使用實(shí)現(xiàn)開(kāi)關(guān)、調(diào)光等各種功能性控制。<span style="display:none;"><span style="display:none;"><span style="display:none;"></span></span>電子鎮(zhèn)流器是現(xiàn)在得到zui為廣泛應(yīng)用的，其由調(diào)光控制器通過(guò)二條主電源線<span style="display:none;"></span></span>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(lái)電哦！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="室外LED有哪些,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402595906998428/7665052.png"></div><p>LED庭院燈是戶外照明燈具的一種，其光源是運(yùn)用新式的LED半導(dǎo)體作為發(fā)光體，通常是指6米以下的戶外旅程照明燈具，其首要部件由:LED光源、燈具、燈桿、法蘭盤(pán)、基礎(chǔ)預(yù)埋件5部分組成，由于LED院子燈其具有多樣性、美麗性具有美化和裝修環(huán)境的特征，所以也被稱之為現(xiàn)象LED院子燈。LED具有:節(jié)能、高效等特征，首要應(yīng)用于城市慢車道、窄車道、居民小區(qū)、旅行景區(qū)，公園、廣場(chǎng)等公共場(chǎng)所的室外照明，可以延伸人們的戶外活動(dòng)的時(shí)刻，跋涉產(chǎn)業(yè)的安全。1、燈具：燈具內(nèi)設(shè)備LED發(fā)光系統(tǒng)。裁線做導(dǎo)線，取、黑色銅芯多股線,各截6段40mm，兩頭剝頭5mm,并浸上錫。做燈板引線，取,截一段700mm，內(nèi)端剝?nèi)ネ馄?0mm，棕色線剝頭5mm，浸錫；藍(lán)色線剝頭5mm，浸錫。外端剝?nèi)ネ馄?0mm，棕色線剝頭20mm；藍(lán)色線剝頭20mm。2、燈桿：LED院子燈燈桿首要原料有：等徑鋼管、異性鋼管、等徑鋁管、鑄鋁燈桿、鋁合金燈桿。常用的直徑有，Φ60、Φ76、Φ89、Φ100、Φ114、Φ140、Φ165，根據(jù)高度和所用場(chǎng)所的不同，所選資料厚度分為：壁厚、壁厚、壁厚。3、法蘭盤(pán)和基礎(chǔ)預(yù)埋件:法蘭盤(pán)是LED院子燈燈桿與地上設(shè)備的重要構(gòu)件。LED院子燈設(shè)備辦法:設(shè)備LED院子燈前。上海先盛照明電器有限公司為您提供手持機(jī)，有想法可以來(lái)我司咨詢！河南家用LED哪里買</p><p style="text-indent:25px">LED，就選上海先盛照明電器有限公司，有需要可以聯(lián)系我司哦！室外LED有哪些</p><p> 這個(gè)黑體加熱的溫度稱之為該光源的顏色溫度，簡(jiǎn)稱色溫。其單位用“K”開(kāi)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(lái)表示光源的相關(guān)色溫，用K氏溫度表示。CIE1931色度圖相關(guān)色溫，以及u,v坐標(biāo)，x,y坐標(biāo)對(duì)比：明白相關(guān)色溫的概念，色溫可以用積分球測(cè)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(jué)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(cè)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(zhǎng)（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。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。室外LED有哪些</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/2488581.html</p></div></div></div></div></div><div id="3oi98y2" class="page-right twoColRt"><div id="p3evsfs" class="box01 margin10 clearfix"><h3><a 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