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當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_dianyuan/">電源</a>?<a href="http://www.cdcfah.com/cp/third-dianyuan_qtdy/">其他電源</a>?黑龍江大功率電源模塊哪家專業(yè) 誠信為本上海多商電子供應(yīng)</p><div id="zxbp5z9" class="leftbox clearfix"><h1>黑龍江大功率電源模塊哪家專業(yè) 誠信為本上海多商電子供應(yīng)</h1><div id="pdlb5hf" class="proBig"><div id="l7v9f99" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060763231217/4135973.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="zdhxrfd" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060763231217/4135973.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="xnt7xth" 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>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>黑龍江大功率電源模塊哪家專業(yè),大功率電源模塊</p><p><span>***更新：</span>2021-01-04 06:16:44</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="779jx9d" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海多商電子有限公司</a></p><p><span>聯(lián)系人：</span>吳加斌</p><p><span>郵箱: </span>wu867@126.com</p><p><span>電話: </span>18121221687</p><p><span>傳真: </span>021_69585559</p><p><span>網(wǎng)址: </span>http://www.10000kw.com</p><p><span>手機(jī): </span>021-69585559</p><p><span>地址: </span>上海市嘉定區(qū)科福路358號(hào)4號(hào)樓4樓</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="vttbrxz" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="tj9jp9f" class="box"><p><p style="text-indent:25px">在較近幾年中，大功率電源模塊產(chǎn)品在通訊通信領(lǐng)域的應(yīng)用范圍得到了較大的拓展，新產(chǎn)品的研發(fā)速度也明顯加快?，F(xiàn)在我們將會(huì)分享一種大功率開關(guān)電源的設(shè)計(jì)方案，本方案采用的是采用半橋式功率逆變電路，大功率電源模塊主體部分的設(shè)計(jì)相對(duì)簡(jiǎn)單，希望能夠?qū)Ω魑还こ處煹难邪l(fā)設(shè)計(jì)工作有所幫助。這種基于SG3525的半橋式大功率開關(guān)電源的電路系統(tǒng)設(shè)計(jì)，在該電路系統(tǒng)中，三相交流電經(jīng)EMI濾波器濾波，有效減少了交流電源輸入的電磁干擾，同時(shí)防止開關(guān)電源產(chǎn)生的諧波串?dāng)_到輸入電源端。再經(jīng)過橋式整流電路，黑龍江大功率電源模塊哪家專業(yè)、濾波電路變成直流電壓加在P、N兩點(diǎn)間。P，黑龍江大功率電源模塊哪家專業(yè)，黑龍江大功率電源模塊哪家專業(yè)、N之間接入一個(gè)小容量、高耐壓的無感電容，起到高頻濾波的作用。并聯(lián)均流原理一：改變等效輸出電阻實(shí)現(xiàn)均流。黑龍江大功率電源模塊哪家專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江大功率電源模塊哪家專業(yè),大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060763231217/4135973.png"></div><p style="text-indent:25px">在大功率電源模塊的實(shí)際應(yīng)用中，外接輸入、輸出電容的選取往往會(huì)從幾個(gè)方面入手：電容額定耐壓值。電容的容值。電容的使用壽命。在許多文獻(xiàn)中，對(duì)于濾波電容 C的選取，多使用經(jīng)驗(yàn)公式，并認(rèn)為濾波電容 C越大越好；在一些濾波電路的維修中，技術(shù)人員經(jīng)常用比原電路容量大的電容來代替已壞掉的電容。從理論上講，增大電路中的濾波電容 C容量的確可以使輸出電壓的波形變得更為平滑、起伏更小，但在電路接通瞬間，電路中所產(chǎn)生的沖擊電流因素卻不能被忽略；在一些濾波電路的維修中對(duì)濾波電容的替換也存在沖擊電流的問題，在不更換其他元件的前提下，單純提高濾波電容的容量會(huì)使整個(gè)電路的實(shí)際使用壽命有效縮短，甚至燒毀整個(gè)電路。黑龍江大功率電源模塊哪家專業(yè)大功率電源模塊包含整個(gè)開關(guān)電源（含電感）。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江大功率電源模塊哪家專業(yè),大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060769491026/1799904.png"></div><p style="text-indent:25px">大功率電源模塊紋波是指疊加在輸出直流電上的交流成分，紋波幅值是交流成分的波峰與波谷之間的峰峰值，狹義的紋波是指在輸出直流電中含有工頻交流成分。工頻，是指電力系統(tǒng)的發(fā)電、輸電、變電與配電設(shè)備以及工業(yè)與民用電氣設(shè)備采用的額定頻率，單位赫茲HZ。中國采用 50Hz，有些國家采用60Hz。紋波是由電容充放電、PWM調(diào)節(jié)等所產(chǎn)生，指在輸出時(shí)，由電源本身開關(guān)引起的一種固定頻率波動(dòng)。當(dāng)開關(guān)電源在工作狀態(tài)時(shí)，每一個(gè)開關(guān)過程電能從輸入端被泵到輸出端，在輸出電容上會(huì)形成一個(gè)充放電的過程。這導(dǎo)致了輸出電壓的波動(dòng)，波動(dòng)頻率和開關(guān)管開關(guān)頻率相同，輸出紋波指的就是這個(gè)波動(dòng)。</p><p style="text-indent:25px">大功率電源模塊剛上電就燒毀冒煙了，輸入端的電容炸裂，是什么原因?qū)е碌哪?？輸入電壓極性接反了；輸入電壓遠(yuǎn)遠(yuǎn)高于標(biāo)稱電壓；輸出端極性電容接反了；輸出電路易引起短路或者外接負(fù)載在上電瞬間存在大電流。解決方法：接線前注意檢查或加防反接保護(hù)電路；選擇合適的輸入電壓；上電前檢查電容極性，確保正確；在電源模塊輸出端加短路保護(hù)。大功率電源模塊用一段壞了，再換一塊沒幾天又壞了，是電源模塊質(zhì)量問題，還是使用不當(dāng)造成的？輸出負(fù)載過輕使其可靠性降低所致輸出端電容過大導(dǎo)致模塊啟動(dòng)時(shí)造成損壞；輸入端電壓長期偏高導(dǎo)致模塊輸入端開關(guān)管損壞。功率 P=UI,是輸出電壓和輸出電流的乘積。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="黑龍江大功率電源模塊哪家專業(yè),大功率電源模塊" src="https://tyunfile.71360.com/UploadFile/shdsdz/637393060379653267/3899269.png"></div><p style="text-indent:25px">大功率電源模塊幾大指標(biāo)：功率 P=UI,是輸出電壓和輸出電流的乘積。輸入電壓分交流輸入和直流輸入2種。輸出電壓一般是直流輸出，但也有交流輸出的。隔離電壓：隔離就是將輸出與輸入進(jìn)行電路上的分離。有以下幾個(gè)作用：一，電流變換；二，為了防止輸入輸出相互干擾；三，輸入輸出電路的信號(hào)特性相差太大，比如用弱信號(hào)控制強(qiáng)電的設(shè)備。封裝尺寸有插針，貼片的，和螺旋。輸出有單路輸出，雙路輸出及多路輸出。電源設(shè)計(jì)中即使是普通的直流到直流開關(guān)轉(zhuǎn)換器的設(shè)計(jì)都會(huì)出現(xiàn)一系列問題，尤其在大功率電源設(shè)計(jì)中更是如此。除功能性考慮以外，工程師必須保證設(shè)計(jì)的魯棒性，以符合成本目標(biāo)要求以及熱性能和空間限制，當(dāng)然同時(shí)還要保證設(shè)計(jì)的進(jìn)度。大功率電源模塊紋波是指疊加在輸出直流電上的交流成分。黑龍江大功率電源模塊哪家專業(yè)</p><p style="text-indent:25px">大功率電源模塊的保護(hù)功能應(yīng)至少包括輸入過壓、欠壓、軟啟動(dòng)保護(hù)。黑龍江大功率電源模塊哪家專業(yè)</p><p style="text-indent:25px">大功率電源模塊里要有無濾波設(shè)計(jì)、電源模塊所在的設(shè)備里有無安規(guī)要求（漏電流、絕緣耐壓、濕度要求）、溫升特性、轉(zhuǎn)換效率、輸入電壓的波動(dòng)范圍、負(fù)載調(diào)整率等等，要求的地方還是不少的。推挽式電源電流瞬態(tài)響應(yīng)速度很高，電壓輸出特性很好，在所有拓?fù)浣Y(jié)構(gòu)中，是利用率較高的一種開關(guān)電源，無漏磁，驅(qū)動(dòng)電路簡(jiǎn)單。輸入電壓偏高輸入電壓過高，非常容易燒毀電路，帶來危害較大，哪些常見原因易造成電壓偏高呢？輸出端懸空或無負(fù)載；輸出端負(fù)載過輕，輕于10%的額定負(fù)載；輸入電壓偏高或干擾電壓。黑龍江大功率電源模塊哪家專業(yè)</p><p style="text-indent:25px">上海多商電子有限公司致力于電工電氣，是一家生產(chǎn)型公司。上海多商電子致力于為客戶提供良好的充電電源，ACDC電源模塊，DCDC電源模塊，大功率電源模塊，一切以用戶需求為中心，深受廣大客戶的歡迎。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。上海多商電子秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營理念，全力打造公司的重點(diǎn)競(jìng)爭(zhēng)力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2697135.html</p></div></div></div></div></div><div id="hxnt5zl" class="page-right twoColRt"><div id="zxnv57d" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="p95jdtz" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="ljxvtpn" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img 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