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href="http://www.cdcfah.com/cp/third-snzmdjeh_jndtz/">節(jié)能燈</a>?江蘇大功率LED路燈蘇州鼎旭照明電器供應</p><div id="3f3wlnm" class="leftbox clearfix"><h1>江蘇大功率LED路燈蘇州鼎旭照明電器供應</h1><div id="ptprtf8" class="proBig"><div id="tczry7i" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/6/24/16/636969920097619125_suzhoudingxu_1832590.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="cwykwyh" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/6/24/16/636969920097619125_suzhoudingxu_1832590.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="i88dugd" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>江蘇大功率LED路燈</p><p><span>***更新：</span>2020-05-26 04:33:00</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="etqxzbi" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">蘇州鼎旭照明電器有限公司</a></p><p><span>聯(lián)系人：</span>張志強</p><p><span>郵箱: </span>dx_wj@163.com</p><p><span>電話: </span>18915506507</p><p><span>傳真: </span>0512_68025940</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>0512-69202637</p><p><span>地址: </span>蘇州長江路98號54幢09號</p><p>[當前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="lhbxzw3" class="page-proshow02"><p class="title">詳細說明</p><div id="esegsjv" class="box"><p><p style="text-indent:25px">LED路燈的電源系統(tǒng)也與傳統(tǒng)光源不同，LED所特需的恒流驅動電源，是保證其正常工作的一大基石，簡單開關電源的方案常會帶來LED器件的損傷。如何使緊密壓縮在一起的一組LED安全、也是考察LED路燈的一個指標。LED對驅動電路的要求是能保證恒流輸出的特性，因為LED正向工作時結電壓相對變化區(qū)域很小，所以保證了LED驅動電流的恒定也就基本保證了LED輸出功率的恒定。對于我國電源電壓供應不穩(wěn)定的現(xiàn)狀，道路燈具LED的驅動電路具有恒流輸出特性是十分必要，可保證光輸出恒定并且防止LED的超功率運行。要想使LED驅動電路呈現(xiàn)恒流特性，從驅動電路的輸出端向內看，其輸出內阻抗一定是高的。工作時，負載電流也同樣通過這一輸出內阻抗，如果驅動電路由降壓、整流濾波后加直流恒流源電路或通用的開關電源加電阻電路組成，在其上必定也消耗很大的有功功率，所以此兩類驅動電路在基本滿足恒流輸出的前提下，江蘇大功率LED路燈，效率是不可能高的，江蘇大功率LED路燈。正確的設計方案是采用有源電子開關電路或采用高頻電流來驅動LED，江蘇大功率LED路燈，采用上述兩種方案可以使驅動電路在保持良好的恒流輸出特性的前提下，仍具有很高的轉換效率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇大功率LED路燈" src="http://tyunfile.71360.com/UpLoadFile/2019/6/24/16/636969920097619125_suzhoudingxu_1832590.jpg"></div><p style="text-indent:25px">我國的道路燈具，基本都采用HID光源加配觸發(fā)器和電感鎮(zhèn)流器的模式，這一模式雖說存在能效較低及頻閃的問題。而采用電子驅動電路的LED燈具，在野外照明場合使用時，威脅其可塑性的一個重要方面是雷電感應問題。眾所周知，空中的閃電發(fā)射的是一廣譜的無線電波，而架空的道路燈具供電線路，是良好的接受無線。兩根電源線接收的同一閃電發(fā)出的無線電波，對驅動電路來講是屬于共模干擾信號，這種共模干擾對地可達數(shù)佰伏到數(shù)千伏，很容易擊穿驅動電路內的EMC接地電容或較小的對地（對外殼）的電氣間隙，造成驅動電路的損壞。另外由于我國的供電線路是三相四線制中性線接地的極性電源，所以在兩根架空供電線的各段，在感應到閃電的無線電波的瞬間，由于兩根供電線對地的瞬時阻抗不同而使兩根供電線間產生一個差模的干擾電壓，這一瞬時差模干擾電壓也可達到數(shù)百伏至3000多伏，這一電壓往往會擊穿驅動電路的電源整流二極管和印制線路板上的不同極性電極間的電氣間隙，LED控制器同樣會使驅動電路損壞。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇大功率LED路燈" src="http://tyunfile.71360.com/UpLoadFile/2019/6/24/16/636969920097463265_suzhoudingxu_9455280.jpg"></div><p style="text-indent:25px">LED路燈優(yōu)點： 1、本身的特性——光的單向性，沒有光的漫射，保證光照效率。 2、LED路燈有獨特的二次光學設計，將LED路燈的光照射到所需照明的區(qū)域，進一步提高了光照效率，以達到節(jié)能目的。 3、LED的已達110-130lm/W，而且還有很大的發(fā)展空間，理論值達360lm/W。而高壓鈉燈的發(fā)光效率是隨功率增加才有所增加，因此，總體光效LED路燈比高壓鈉燈強；(這個總體光效是理論上的，實際上250W以上高壓鈉燈的光效高于LED燈）。 4、LED路燈的光顯色性比高壓鈉燈高許多，高壓鈉燈顯色指數(shù)只有23左右，而LED路燈顯色指數(shù)達到75以上，從視覺心理角度考慮，達到同等亮度，LED路燈的光照度平均可以比高壓鈉燈降低20%以上。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="江蘇大功率LED路燈" src="http://tyunfile.71360.com/UpLoadFile/2019/6/24/16/636969920097463265_suzhoudingxu_5036190.jpg"></div></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/42169.html</p></div></div></div></div></div><div id="lf33tv2" class="page-right twoColRt"><div id="yhyvc8s" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fu8hyp7" 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配件哪家強信息推薦自業(yè)物資供應" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應</p></a></div><div id="bv32wda" class="recomPic likePro"><a 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