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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="wvsuls2" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596613365584/7781043.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="g38rh23" 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>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>山東什么是LED,LED</p><p><span>***更新：</span>2020-12-13 10:13:23</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="drtqh8h" 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: </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="py2o8ji" class="page-proshow02"><p class="title">詳細說明</p><div id="828eam3" class="box"><p><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)電壓超過某個閾值時，電流會出現(xiàn)指數(shù)式上升。通?？捎梅聪驌舸╇妷海聪螂娏骱驼螂妷喝齻€參數(shù)來進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，山東什么是LED，有單向?qū)щ娦?，流過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；電壓不能過高，大于某個閾值的時候，電流會指數(shù)式上升，沒有保護電路的話，山東什么是LED，一般會擊穿晶片；反向電壓一般為10V左右，大不得超過15V，否則會反向擊穿燈珠。（接反會導(dǎo)致反向電壓，過高會造成損壞）LED各類型封裝芯片的一般額定電壓，山東什么是LED，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，不過也有特意幾個晶片串聯(lián)一起的高壓燈珠，有6V，9V，18V，24V等。<span style="display:none;"></span>上海先盛照明電器有限公司致力于提供LED，有需求可以來電咨詢！山東什么是LED</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東什么是LED,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402596613365584/7781043.png"></div><p> 環(huán)保LED軟燈條組成資料不論是LED仍是FPC，其質(zhì)料都是選用的環(huán)保質(zhì)料，歸于可回收運用型，不會因為許多運用而構(gòu)成對環(huán)境的污染和損壞。6.安全LED軟燈條選用的是低壓直流12V供電電壓，因此運用上十分安全。不論白叟、小孩都可以安全運用而不會引起安全隱患。7.簡易設(shè)備LED軟燈條設(shè)備十分簡潔，配用固定夾、線槽、鐵線、鐵網(wǎng)等即可設(shè)備在多種支承面上。其他，因為LED軟燈條輕、薄，因此，選用雙面膠也可以結(jié)束固定的功用。無需專業(yè)人員即可設(shè)備，可以真實享受DIY的裝飾愛好。8.壽數(shù)長LED軟燈條的正常運用壽數(shù)是8~10萬小時，每天24小時不斷的作業(yè)，其壽數(shù)都差不多近10年。因此，LED軟燈條的壽數(shù)是傳統(tǒng)燈具的好幾倍。9.使用范圍LED軟燈條因為柔軟、輕浮、色彩樸實等特征，被使用于樓體概括，臺階，展臺，橋梁，酒店，KTV裝飾照明，以及廣告招牌的制造、各種大型動畫、字畫的廣告設(shè)計等場所。跟著LED軟燈條技能的逐步老練，其使用范圍將愈加。山西品質(zhì)LED燈泡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！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東什么是LED,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402595981588241/3608375.png"></div><p>首先“LED屏幕與LCD屏幕有什么區(qū)別？”這個問題本身就是不成立的，之所以用這個標(biāo)題，還是為了激發(fā)讀者閱讀興趣，增加點擊率。為什么這個問題不成立？因為在液晶電視上，LED屏幕與LCD屏幕其實是一個意思，都表示液晶屏幕，而LED屏幕是錯誤的叫法，LCD才是正確的液晶電視屏幕表達方法。為什么會有LED屏幕這種錯誤的叫法？首先簡單了解一下液晶屏幕的構(gòu)造，這里我們講簡單一點，太復(fù)雜太專業(yè)也沒有必要：液晶電視屏幕主要由液晶顯像玻璃板覆蓋在背光源上組成的(啥偏光片導(dǎo)光板與本文無關(guān)不提了）。你看到屏幕亮，主要是由液晶屏幕背面的背光源照亮的，而這個背光源，以前用的是熒光燈CCFL(冷陰極熒光燈，教室里常見的日光燈就是)，后來技術(shù)更新，背光源改為LED燈珠了。改用LED做液晶電視的背光源，可以使得畫面更好，壽命更長，屏幕面板也可以做更薄，制造工藝也更環(huán)保，不像熒光燈那樣有污染。所以綜合而言LED燈做液晶電視的背光源是更質(zhì)量的選擇。</p><p>雙隔離安全型LED投光燈產(chǎn)品名稱：雙隔離安全型LED工礦燈（吊燈）產(chǎn)品關(guān)鍵詞：雙隔離、安全型、內(nèi)置雙燈、進口芯片、防眩透鏡、帶熱保護隔離型防水驅(qū)動、高功率因數(shù)、AI防水風(fēng)扇防蚊蟲、全鋁燈體。產(chǎn)品名稱：雙隔離安全型LED投光燈光源套件產(chǎn)品關(guān)鍵詞：雙隔離、安全型、內(nèi)置雙燈、進口芯片、防眩透鏡、帶熱保護隔離型防水驅(qū)動、高功率因數(shù)、AI防水風(fēng)扇防蚊蟲、全鋁燈體。光源參數(shù)：原裝SAMSUNG芯片，3535燈珠、純金線、EMC支架、110lm/w、顯色指數(shù)≧80。光源防護：進口PC料模壓成型透鏡罩，配有防護網(wǎng)。雙隔離安全型LED工礦燈（吊燈）產(chǎn)品關(guān)鍵詞：雙隔離、安全型、內(nèi)置雙燈、進口芯片、防眩透鏡、帶熱保護隔離型防水驅(qū)動、高功率因數(shù)、AI防水風(fēng)扇防蚊蟲、全鋁燈體。技術(shù)特點：1、標(biāo)稱功率：150W（內(nèi)置雙燈）。本產(chǎn)品提供一路50W和一路100W兩路輸出線，可以并聯(lián)為150W，實現(xiàn)50W/100W/150W三檔功率組合，場館LED防震節(jié)能燈，適合外接三路線控分光器或遙控分光器，也適合分別外接聲控、光控、時控、紅外、微波感應(yīng)等自控開關(guān)，工廠LED防震節(jié)能燈，或分出一路接后備電源提供應(yīng)急照明。2、觸電防護：雙隔離型（安全，LED防震節(jié)能燈，不漏電）。本產(chǎn)品采用隔離式燈具。上海先盛照明電器有限公司致力于提供LED，期待您的光臨！</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="山東什么是LED,LED" src="https://tyunfile.71360.com/WaterMark/UploadFile/shxiansheng/637402597580084318/2407059.png"></div><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)流器電路將會失去較開關(guān)特性，會出現(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)不再是個問題，這時功率開關(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）也不會產(chǎn)生太多的EMI輻射。<span style="display:none;"><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，有需求可以來電咨詢！湖南專業(yè)LED功率</p><p style="text-indent:25px">LED，就選上海先盛照明電器有限公司，讓您滿意，歡迎您的來電哦！山東什么是LED</p><p>以盒子為設(shè)計概念，通過裸眼3D技術(shù)營造出集視、聽、感于一體的沉浸式體驗氛圍，震撼呈現(xiàn)南昌VR科創(chuàng)城未來生產(chǎn)、生活、生態(tài)“三生”融合的美好愿景。面積大MicroLED的弧形屏項目落地中東近段時間，利亞德為沙特阿拉伯國家石油公司打造世界弧形MicroLED顯示屏。這塊總面積達113m2的MicroLED()弧形屏，該組產(chǎn)品包括一塊240°弧度曲面屏，半徑，由寬米，高LED拼接而成(分辨率：25920x3360像素);兩塊43°弧度曲面屏，半徑，由寬米，高米MicoLED拼接而成(分辨率：11520x2160像素)。聯(lián)建光電裸眼3D飛船巨幕裸眼3D飛船LED巨幕，位于成都春熙路太古里商圈，畫面取自科幻電影《星際迷航》，畫面分辨率達8K，總面積近1000㎡，星際飛船在高清細膩畫面下每個細節(jié)都體現(xiàn)得淋漓盡致。不僅如此，裸眼3D巨幕與一旁的450㎡超高清屏“雙屏聯(lián)動”作用下，為春熙路商圈注入了新的活力。為了讓飛船“飛出”的效果更具臨場感，項目特別針對白天與黑夜不同場景進行多元化細節(jié)呈現(xiàn)，搭配平滑恰到好處的90°無縫轉(zhuǎn)角模組技術(shù)、戶外高亮廣角顯示面板技術(shù)、高對比吸光面罩等先進技術(shù)，瞬間打破藝術(shù)的邊境，讓整體墻面頓時注入裸眼3D數(shù)字技術(shù)新生命。山東什么是LED</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2388277.html</p></div></div></div></div></div><div id="844lri4" class="page-right twoColRt"><div id="jwszb8m" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="gjlco3y" class="recomPic 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