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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>高質(zhì)量電子線圈批發(fā)</p><p><span>***更新：</span>2020-06-25 20:32:42</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="ec4vj6q" 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="ac42g2b" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="qsnx496" class="box"><p><p> 直接測(cè)量中間繼電器得到的s參數(shù)；s12、對(duì)一組完好無(wú)損的中間繼電器線圈進(jìn)行人為破壞，模擬使用過(guò)程中出現(xiàn)的軟故障的情況，高質(zhì)量電子線圈批發(fā)，或找到一組線圈軟故障的中間繼電器，測(cè)量中間繼電器的s參數(shù)；s13、對(duì)s11和s12中的高頻阻抗特性進(jìn)行聚類，獲得兩類，一類為正常的a組樣本數(shù)據(jù)，另一類為軟故障的b組樣本數(shù)據(jù)。本實(shí)施方式按照?qǐng)D1所示，將矢量網(wǎng)絡(luò)分析儀接在中間繼電器的線圈兩端，即將矢量網(wǎng)絡(luò)分析儀接在中間繼電器的兩個(gè)供電引腳，使用矢量網(wǎng)絡(luò)分析儀給中間繼電器的線圈施加激勵(lì)信號(hào)，采集中間繼電器線圈的高s參數(shù)。矢量網(wǎng)絡(luò)分析儀所施加的激勵(lì)信號(hào)的頻率下限應(yīng)該低于中間繼電器線圈自身的諧振頻率，可以根據(jù)繼電器的不同類型進(jìn)行合理調(diào)整，信號(hào)頻率上限要確保高于中間繼電器線圈的諧振頻率，同時(shí)要保證一定的信號(hào)帶寬，盡量使目標(biāo)頻率處于頻率范圍中間。作為對(duì)照組的中間繼電器線圈的s參數(shù)，辨識(shí)出s參數(shù)中相頻特性中相角為零對(duì)應(yīng)的頻率，即線圈的諧振頻率，然后利用系統(tǒng)聚類法對(duì)數(shù)據(jù)進(jìn)行聚類分析，**終將采集到的頻率聚為兩類，其中一類為線圈正常的中間繼電器對(duì)應(yīng)的諧振頻率，高質(zhì)量電子線圈批發(fā)，另一類為線圈存在軟故障的中間繼電器對(duì)應(yīng)的諧振頻率，高質(zhì)量電子線圈批發(fā)，這樣就完成了樣本對(duì)照組的構(gòu)建。應(yīng)當(dāng)注意的是。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高質(zhì)量電子線圈批發(fā)" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218867222490234/1694555.png"></div><p> 要想獲得，其脈沖寬度不能大于20us。3設(shè)計(jì)短路保護(hù)應(yīng)注意的幾個(gè)問(wèn)題由于不同控制器的PCB布線參數(shù)不一樣，導(dǎo)致相線短路時(shí)回路阻抗不等，短路電流也因此不同。所以，不同設(shè)計(jì)的控制器應(yīng)根據(jù)實(shí)際情況設(shè)計(jì)確當(dāng)?shù)亩搪繁Ｗo(hù)時(shí)間。由于應(yīng)用中使用的電源電壓有可能不同，也會(huì)導(dǎo)致短路電流的不同，同樣也會(huì)影響到保護(hù)時(shí)間。注意控制器實(shí)際工作時(shí)的可能比較高溫度，工作溫度越高，短路保護(hù)時(shí)間就應(yīng)該越短。本文討論的短路保護(hù)時(shí)間是指MOSFET能承受的**長(zhǎng)短路時(shí)間。在設(shè)計(jì)短路保護(hù)電路時(shí)，應(yīng)考慮硬件及軟件的響應(yīng)時(shí)間，以及電流保護(hù)的峰值，這些參數(shù)都會(huì)影響到**終的保護(hù)時(shí)間。因此，硬件電路設(shè)計(jì)和軟件的編寫致關(guān)重要。本文討論的短路保護(hù)時(shí)間是單次短路保護(hù)時(shí)間，短路后短時(shí)間內(nèi)不能再次短路。如果設(shè)計(jì)成周期性短路保護(hù)，則短路保護(hù)時(shí)間應(yīng)更短。4結(jié)論短路保護(hù)在瞬間大電流時(shí)能對(duì)MOSFET提供可靠的快速保護(hù)，增加了控制的可靠性，減少了控制器的損壞率。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高質(zhì)量電子線圈批發(fā)" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218591383662110/1606588.jpg"></div><p> 1.貼片線圈的用途:使用在共模濾波器、多頻變壓器、阻抗變壓器、平衡及不平衡轉(zhuǎn)換變壓器、電子設(shè)備EMI噪音、個(gè)人電腦及**設(shè)備的USB線路、液晶顯示面板、低壓微分信號(hào)、汽車遙控式鑰匙等。 </p> <p> 2.固定電感線圈包括:環(huán)型線圈、扼流線圈、共模線圈、鐵氧體磁珠、功率電感、有貼片型與引腳型可供選擇 </p> <p> 3.閉磁路大電流表面貼裝功率電感特點(diǎn)及用途:理想的DC-DC轉(zhuǎn)換電感，大功率，高飽和電感器，直流電阻小，適合于大電流，帶裝或并卷輪包裝以便自動(dòng)表面安裝，應(yīng)用于錄放影機(jī)電源供應(yīng)器、錄放影機(jī)電源供應(yīng)器、液晶電視機(jī)、手提電腦、辦公自動(dòng)化設(shè)備、移動(dòng)通訊設(shè)備、直流/直流轉(zhuǎn)換器等。 </p> <p> 4.射頻電感的用途:使用在移動(dòng)電話、VCO、TCXO電路和射頻收發(fā)器模組、全球定位系統(tǒng)、無(wú)線網(wǎng)絡(luò)、藍(lán)牙模組、通訊設(shè)備、液晶電視、攝影機(jī)、筆記型電腦、噴墨印表機(jī)、影印機(jī)、顯示監(jiān)視器、彩色電視、錄放影機(jī)、光盤機(jī)、攝影機(jī)、數(shù)位相機(jī)、汽車電子產(chǎn)品等。 </p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/391273.html</p></div></div></div></div></div><div id="c1bwgto" class="page-right twoColRt"><div id="yhgtsj4" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="6lcmh47" 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