上海電子線圈承諾守信無(wú)錫東英電子供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content=" 可實(shí)時(shí)檢測(cè)到車(chē)用電磁閥的短路狀態(tài)和斷路狀態(tài)，電路結(jié)構(gòu)精簡(jiǎn)，實(shí)現(xiàn)方式簡(jiǎn)單且成本較低。cpld控制器可以依據(jù)檢測(cè)到的短路/斷路狀態(tài)切斷驅(qū)動(dòng)輸出，達(dá)到實(shí)時(shí)保護(hù)的目的，并鎖定短路/斷路狀態(tài)反饋給mcu"><meta name="keywords" content="上海電子線圈承諾守信"><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 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id = "index_index"><a href="http://www.cdcfah.com/"><span>首頁(yè)</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="zjgdvm8" class="twoCol"><div id="8nf7rmg" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_qmjpj/">汽摩及配件</a>?<a href="http://www.cdcfah.com/cp/second-qmjpj_qcaqfz/">汽車(chē)安全輔助</a>?<a href="http://www.cdcfah.com/cp/third-qcaqfz_qtqcaqyp/">其他汽車(chē)安全用品</a>?上海電子線圈承諾守信無(wú)錫東英電子供應(yīng)</p><div id="ap8zof7" class="leftbox clearfix"><h1>上海電子線圈承諾守信無(wú)錫東英電子供應(yīng)</h1><div id="nhebdf9" class="proBig"><div id="b8acelf" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218867240517578/5400697.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="8szbiak" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218867240517578/5400697.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="nxp8bnp" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>上海電子線圈承諾守信</p><p><span>***更新：</span>2020-06-20 19:25:33</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="wldvseb" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫東英電子有限公司</a></p><p><span>聯(lián)系人：</span>朱淇華</p><p><span>郵箱: </span>wxdydz@163.com</p><p><span>電話: </span>13921179070</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0510-83785478</p><p><span>地址: </span>江蘇省無(wú)錫市錫山區(qū)錫北鎮(zhèn)新壩村</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="8kh8s3x" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="ynf9edz" class="box"><p><p> 可實(shí)時(shí)檢測(cè)到車(chē)用電磁閥的短路狀態(tài)和斷路狀態(tài)，電路結(jié)構(gòu)精簡(jiǎn)，實(shí)現(xiàn)方式簡(jiǎn)單且成本較低。cpld控制器可以依據(jù)檢測(cè)到的短路/斷路狀態(tài)切斷驅(qū)動(dòng)輸出，達(dá)到實(shí)時(shí)保護(hù)的目的，并鎖定短路/斷路狀態(tài)反饋給mcu，實(shí)現(xiàn)閉環(huán)反饋功能。附圖說(shuō)明圖1是本申請(qǐng)公開(kāi)的車(chē)用電磁閥的故障檢測(cè)電路的電路結(jié)構(gòu)圖，上海電子線圈承諾守信。圖2是車(chē)用電磁閥正常工作狀態(tài)下的信號(hào)相位圖。圖3是車(chē)用電磁閥斷路工作狀態(tài)下的信號(hào)相位圖。圖4是車(chē)用電磁閥短路工作狀態(tài)下的信號(hào)相位圖。具體實(shí)施方式下面結(jié)合附圖對(duì)本發(fā)明的具體實(shí)施方式做進(jìn)一步說(shuō)明。本申請(qǐng)公開(kāi)了一種車(chē)用電磁閥的故障檢測(cè)電路，請(qǐng)參考圖1所示的電路圖，該故障檢測(cè)電路包括mcu、cpld控制器、車(chē)用電磁閥驅(qū)動(dòng)電路、車(chē)用電磁閥t1、電阻r1、第二電阻r2、第三電阻r3以及二極管d，上海電子線圈承諾守信，mcu的驅(qū)動(dòng)使能端en端連接cpld控制器并輸出驅(qū)動(dòng)使能信號(hào)，cpld控制器的驅(qū)動(dòng)輸出端c1連接車(chē)用電磁閥驅(qū)動(dòng)電路并輸出驅(qū)動(dòng)控制信號(hào)。車(chē)用電磁閥t1的一端連接電阻r1、另一端接地，電阻r1的另一端接+24v電壓，車(chē)用電磁閥t1和電阻r1的公共端a連接車(chē)用電磁閥驅(qū)動(dòng)電路的輸出端。車(chē)用電磁閥t1和電阻r1的公共端還通過(guò)第二電阻r2連接二極管d的正極，上海電子線圈承諾守信，二極管d的負(fù)極連接+，二極管d的正極還通過(guò)第三電阻r3接地。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電子線圈承諾守信" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218867240517578/5400697.png"></div><p> 我們的公司DY生產(chǎn)塑料芯線圈已有20多年的歷史了。我們豐富的生產(chǎn)經(jīng)驗(yàn)使我們能夠根據(jù)客戶(hù)要求定制各種塑料芯線圈，例如：點(diǎn)火線圈，螺線管，繼電器線圈和其他不同的線圈。 </p> <p> 由于我們擁有注塑機(jī)，因此可以制造塑料芯線圈的塑料結(jié)構(gòu)，從而降低了成本。此外，我們可以更好地了解質(zhì)量。結(jié)構(gòu)的質(zhì)量也會(huì)影響塑料芯線圈的質(zhì)量。例如，如果結(jié)構(gòu)上有毛刺，這些毛刺可能會(huì)刺穿漆包線，然后在使用過(guò)程中使線圈無(wú)用。因此，如果出現(xiàn)故障，我們的工人將檢查每個(gè)結(jié)構(gòu)。 </p> <p> 我們提供PA66，PA46，PPA和PPE塑料芯線圈結(jié)構(gòu)材料供您選擇。如果您對(duì)材料有其他要求，我們也可以滿(mǎn)足您的要求。 </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="上海電子線圈承諾守信" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218591377119141/1119879.jpg"></div><p> 電動(dòng)車(chē)無(wú)刷電機(jī)控制器短路的工作模型解決方案：溫升公式：Tj=Tc+P×Rth(jc)根據(jù)單脈沖的熱阻系數(shù)確定允許的短路時(shí)間工作溫度越高短路保護(hù)時(shí)間就應(yīng)該越短1短路模型及分析短路模型如圖1所示，其中*畫(huà)出了功率輸出級(jí)的A、B兩相(共三相)。Q1和Q3為A相MOSFET，Q2和Q4為B相MOSFET，所有功率MOSFET均為AOT430。L1為電機(jī)線圈，Rs為電流檢測(cè)電阻。當(dāng)控制器工作時(shí)，如電機(jī)短路，則會(huì)形成如圖1中所示的流經(jīng)Q2，Q3的短路電流，其電流值很大，達(dá)幾百安培，MOSFET的瞬態(tài)溫升很大，這種情況下應(yīng)及時(shí)保護(hù)，否則會(huì)使MOSFET結(jié)點(diǎn)溫度過(guò)高而使MOSFET損壞。短路時(shí)Q3電壓和電流波形如圖2所示。圖2a中的MOSFET能承受45us的大電流短路，而圖2b中的MOSFET不能承受45us的大電流短路，當(dāng)脈沖45us關(guān)斷后，Vds回升，由于溫度過(guò)高，*經(jīng)過(guò)10us的時(shí)間MOSFET便短路，Vds迅速下降,短路電流迅速上升。由圖2我們可以看出短路時(shí)峰值電流達(dá)500A，這是由于短路時(shí)MOSFET直接將電源正負(fù)極短路，回路阻抗是導(dǎo)線，PCB走線及MOSFET的Rds(on)之和，其數(shù)值很小，一般為幾十毫歐至幾百毫歐。2計(jì)算合理的保護(hù)時(shí)間在實(shí)際應(yīng)用中，不同設(shè)計(jì)的控制器，其回路電感和電阻存在一定的差別以及短路時(shí)的電源電壓不同。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/330011.html</p></div></div></div></div></div><div id="nczypr2" class="page-right twoColRt"><div id="sbdxoa3" class="box01 margin10 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