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clearfix"><p class="current"> 當(dāng)前位置:<a href="http://m.cdcfah.com/">首頁?<a href="http://m.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://m.cdcfah.com/cp/second-_dgdq/">電工電氣</a>?<a href="http://m.cdcfah.com/cp/third-dgdq_kcdgdqcp/">庫存電工電氣產(chǎn)品</a>?濟(jì)南高功率DC-DC直流電源批發(fā)哪家好服務(wù)為先深圳市保益新能電氣供應(yīng)</p><div id="ig8kd3r" class="leftbox clearfix"><h1>濟(jì)南高功率DC-DC直流電源批發(fā)哪家好服務(wù)為先深圳市保益新能電氣供應(yīng)</h1><div id="r82cboq" class="proBig"><div id="cjf7yky" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339094498929/5965434.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hr38pg8" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339094498929/5965434.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ui8evmg" 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>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>濟(jì)南高功率DC-DC直流電源批發(fā)哪家好,DC-DC直流電源</p><p><span>***更新：</span>2020-12-22 04:11:01</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="imtkbsj" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市保益新能電氣有限公司</a></p><p><span>聯(lián)系人：</span>葉立民</p><p><span>郵箱: </span>1301978383@qq.com</p><p><span>電話: </span>18675588113</p><p><span>傳真: </span>0755_</p><p><span>網(wǎng)址: </span>http://www.boynelectric.com</p><p><span>手機(jī): </span>0755-21070344</p><p><span>地址: </span>大浪街道浪口社區(qū)華榮路496號(hào)德泰工業(yè)區(qū)1號(hào)廠房4層402</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="tnevcjl" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="7vmyfw3" class="box"><p><p style="text-indent:25px">DC-DC直流電源輸入濾波電容器的選擇：鋁電解電容器的額定電壓的1.3倍作為電容器的浪涌電壓，工作電壓高于160V時(shí)，是額定工作電壓+50V作為浪涌電壓，濟(jì)南高功率DC-DC直流電源批發(fā)哪家好，這是生產(chǎn)廠家保證的電壓，濟(jì)南高功率DC-DC直流電源批發(fā)哪家好，可以允許在短時(shí)間內(nèi)承受此電壓。電容器處于浪涌電壓時(shí)，電流會(huì)很大，如果時(shí)間太長，會(huì)爆開。所以鋁電容器應(yīng)該選用額定電壓稍高的，實(shí)際工作電壓為標(biāo)稱額定電壓的70~80%為宜，所以選用額定電壓值為400V的鋁電解電容。由于模塊電源體積的限制，在85～265Vac的輸入范圍內(nèi)，前級(jí)儲(chǔ)能鋁電解電容的容值一般選取2倍于輸出功率的值，即2.5*2=5，綜上，鋁電解電容的取值以4.7μF/400V為宜，濟(jì)南高功率DC-DC直流電源批發(fā)哪家好。DC-DC直流電源定功率條件**積要盡量小，這樣才能給系統(tǒng)其他部分更多空間更多功能。濟(jì)南高功率DC-DC直流電源批發(fā)哪家好</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南高功率DC-DC直流電源批發(fā)哪家好,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397339094498929/5965434.png"></div><p> DC-DC直流電源系統(tǒng)接地的處理： </p> <p> 1) 在無法快速判別接地故障點(diǎn)時(shí)，應(yīng)采用便攜式絕緣檢測設(shè)備進(jìn)行探查。 </p> <p> 2) 拉路查找應(yīng)遵循“先次要后重要，先戶外后戶內(nèi)”的原則進(jìn)行，一般按照事故照明、輔助設(shè)施、信號(hào)回路、保護(hù)及控制回路、整流裝置和蓄電池回路，對(duì)于PT并列裝置等重要工作電源嚴(yán)禁拉路。 </p> <p> 3) 推拉檢查應(yīng)先推拉容易接地的回路，依次推拉事故照明、防誤閉鎖裝置回路、戶外合閘回路、戶內(nèi)合閘回路、6～10kV控制回路、其他控制回路、主控制室信號(hào)回路、主控制室控制回路、整流裝置和蓄電池回路。 </p> <p> 4) 凡涉及繼電保護(hù)及自動(dòng)裝置的DC-DC直流電源回路在拉路前應(yīng)征得調(diào)度同意，停用相應(yīng)保護(hù)裝置并做好安全措施后執(zhí)行。 </p> <p> 5) 查找和處理直流接地時(shí)工作人員應(yīng)戴線手套、穿長袖工作服。應(yīng)使用內(nèi)阻大于2000Ω/V的高內(nèi)阻電壓表，工具應(yīng)絕緣良好。防止在查找和處理過程中造成新的接地。濟(jì)南高功率DC-DC直流電源批發(fā)哪家好DC-DC直流電源上下級(jí)斷路器應(yīng)滿足選擇性配合要求。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南高功率DC-DC直流電源批發(fā)哪家好,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338705856327/8520994.png"></div><p style="text-indent:25px">使用DC-DC電源模塊要注意什么：1、因?yàn)镈C-DC電源模塊是選用開關(guān)振蕩電路來完成的，其本身也會(huì)發(fā)生共模、差模噪聲的攪擾，關(guān)于對(duì)紋波噪聲需求較高的場合可在DC-DC電源模塊的輸出端外接無源LC濾波網(wǎng)絡(luò)或RC（損耗較大），以進(jìn)一步下降電源紋波噪聲，可是要注意L本身諧振頻率要遠(yuǎn)高于模塊的開關(guān)頻率，答應(yīng)經(jīng)過的電流值zui好在模塊輸入電流的兩倍以上，內(nèi)阻要小，以下降直流損耗。2、為確保模塊電源長時(shí)間作業(yè)的可靠性應(yīng)使到模塊作業(yè)在10%額定功率以上，以避免模塊因?yàn)榭蛰d或輕載致使輸出電壓不穩(wěn)而影響電路作業(yè)，若是負(fù)載功耗的確較小，能夠采和外接假負(fù)載的方法在輸出端的+Vo與0V及-Vo與0V之間并上一10%額定功率的假負(fù)載（電阻），以進(jìn)步商品的可靠性。</p><p style="text-indent:25px">DC-DCDC-DC直流電源電涌的來源：電涌可來自電氣裝置外部，也可來自電氣裝置內(nèi)部，即來自電氣裝置內(nèi)的電器設(shè)備。來自外部的電涌?這種電涌由雷電或公用電網(wǎng)開關(guān)的投切引起，這兩類有害的電源擾動(dòng)都可擾亂計(jì)算機(jī)和微機(jī)信息處理系統(tǒng)的工作，引起停工或永遠(yuǎn)性設(shè)備損壞。當(dāng)云層上有電荷儲(chǔ)蓄，云層下表面產(chǎn)生極性相反的等量電荷時(shí)，將引起雷電放電。其后的情況就象一個(gè)大電池組或一個(gè)大電容器的放電那樣，云層和地面間的電荷電位高達(dá)若干百萬伏。發(fā)生雷擊時(shí)以若干千安計(jì)的電流通過雷擊放電，經(jīng)過所有設(shè)備和大地返回云層，從而完成電的通路。不幸的是這個(gè)雷電通路常常取道重要或貴重的設(shè)備。電涌防護(hù)的關(guān)鍵概念是給雷電感應(yīng)電流提供一個(gè)通向大地的短捷有效的通路。來自內(nèi)部的電涌?來自內(nèi)部的電涌是經(jīng)常發(fā)生的，諸如來自空調(diào)機(jī)、空壓機(jī)、電弧焊機(jī)、電泵、電梯、開關(guān)電源和其它一些感性負(fù)荷的電涌。DC-DC直流電源若無原裝測試短針，則須自制短接地線。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南高功率DC-DC直流電源批發(fā)哪家好,DC-DC直流電源" src="https://tyunfile.71360.com/WaterMark/UploadFile/baoyixinneng/637397338812711808/1470393.png"></div><p style="text-indent:25px">非隔離式DCDC開關(guān)轉(zhuǎn)換集成電路芯片電路設(shè)計(jì)方案：DC-DC開關(guān)轉(zhuǎn)換集成電路芯片，這類芯片的使用方法與第六條中的LM317非常相似，這里用L4960舉例說明，一般是先使用50Hz電源變壓器進(jìn)行AC-AC變換，將～220V降至開關(guān)電源集成轉(zhuǎn)換芯片輸入電壓范圍比如1.2～34V，由L4960進(jìn)行DC-DC變換，這時(shí)輸出電壓的變化范圍下可調(diào)至5V，上調(diào)至40V，zui大輸出電流可達(dá)2.5A(還可以接大功率開關(guān)管進(jìn)行擴(kuò)流)，并且內(nèi)設(shè)完善的保護(hù)功能，如過流保護(hù)、過熱保護(hù)等。盡管L4960的使用方法與LM317差不多，但開關(guān)電源的L4960與線性電源的LM317相比，效率不可同曰而語，L4960zui大可輸出100W的功率(Pmax=40V*2.5A=100W)，但本身zui多只消耗7W，所以散熱器很小，制作容易。與L4960類似的還有L296，其基本參數(shù)與L4960相同，只是zui大輸出電流可高達(dá)4A，且具有更多的保護(hù)功能，封裝形式也不一樣。這樣的芯片比較多，比如，LM2576系列，TPS54350，LTC3770等等。一般在使用這些芯片時(shí)，廠家都會(huì)詳細(xì)的使用說明和典型電路供參考。DC-DC直流電源工具應(yīng)絕緣良好。防止在查找和處理過程中造成新的接地。濟(jì)南高功率DC-DC直流電源批發(fā)哪家好</p><p style="text-indent:25px">DC-DC直流電源非靜電力的性質(zhì)不同，能量轉(zhuǎn)換的過程也不同。濟(jì)南高功率DC-DC直流電源批發(fā)哪家好</p><p style="text-indent:25px">DC-DC直流電源技術(shù)指標(biāo)：1.輸出電阻及電流調(diào)整率：輸出電阻與放大器的輸出電阻相同，其值為當(dāng)輸入電壓不變時(shí)，輸出電壓變化量與輸出電流變化量之比的一定值。電流調(diào)整率：輸出電流從0變到zui大值時(shí)所產(chǎn)生的輸出電壓相對(duì)變化值。輸出電阻和電流調(diào)整率均說明負(fù)載電流變化對(duì)輸出電壓的影響，因此也只需測試其中之一即可。2.紋波電壓：疊加在輸出電壓上的交流電壓分量。用示波器觀測其峰峰值一般為毫伏量級(jí)。也可用交流毫伏表測量其有效值，但因紋波不是正弦波，所以有一定的誤差。一般只能用于所需電流強(qiáng)度較小的電路。為了取得較大的電流強(qiáng)度，可以將等電動(dòng)勢的DC-DC直流電源并聯(lián)使用，這時(shí)總電動(dòng)勢即為單個(gè)電源的電動(dòng)勢，總內(nèi)阻為各電源內(nèi)電阻的并聯(lián)值。濟(jì)南高功率DC-DC直流電源批發(fā)哪家好</p><p style="text-indent:25px">深圳市保益新能電氣有限公司致力于電工電氣，是一家生產(chǎn)型的公司。公司業(yè)務(wù)分為UPS/EPS電源，雙向逆變器，安防電源，激光儲(chǔ)能電源等，目前不斷進(jìn)行創(chuàng)新和服務(wù)改進(jìn)，為客戶提供良好的產(chǎn)品和服務(wù)。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造電工電氣良好品牌。保益新能立足于全國市場，依托強(qiáng)大的研發(fā)實(shí)力，融合前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來源地址: http://m.cdcfah.com/cp/2507363.html</p></div></div></div></div></div><div id="imnz87c" class="page-right twoColRt"><div id="7bs3jb3" class="box01 margin10 clearfix"><h3><a 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