摘要:在開關(guān)電源中,EMI濾波器對共模和差模傳導(dǎo)噪聲的抑制起著顯著的作用。在研究濾波器原理的基礎(chǔ)上,探討了一種對共模、差模信號進(jìn)行獨(dú)立分析,分別建模的方法,最后基于此提出了一種EMI濾波器的設(shè)計(jì)程序。關(guān)鍵詞:開關(guān)電源;EMI濾波器;共模;差模
標(biāo)簽: EMI 開關(guān)電源 濾波器原理
上傳時(shí)間: 2013-11-15
上傳用戶:taiyang250072
摘要:為改善傳統(tǒng)EMI濾波器的濾波性能,分析并采用了合成扼流圈來替代傳統(tǒng)分立扼流圈,并根據(jù)濾波器阻抗失配原理,通過分析LISN網(wǎng)絡(luò)與噪聲源的阻抗特性,分別對共差模等效電路進(jìn)行分析與設(shè)計(jì),提出了基于合成扼流圈的開關(guān)電源EMI濾波器設(shè)計(jì)方法。試驗(yàn)結(jié)果證明,此方法是有效的,并已成功地應(yīng)用在燃料電池轎車用DC/DC變換器的控制電路板設(shè)計(jì)中。關(guān)鍵詞:開關(guān)電源;電磁干擾;合成扼流圈;共模電感
標(biāo)簽: EMI 合成 扼流圈 開關(guān)電源
上傳時(shí)間: 2013-10-17
上傳用戶:邶刖
PCB相關(guān)技術(shù),信號完整性分析,EMI和熱設(shè)計(jì)
標(biāo)簽: EMI 開關(guān) 信號完整性 分
上傳時(shí)間: 2013-10-27
上傳用戶:skfreeman
解決EMI問題的辦法很多,現(xiàn)代的EMI抑制方法包括:利用EMI抑制涂層、選用合適的EMI抑制零配件和EMI仿真設(shè)計(jì)等。本文從最基本的PCB布板出發(fā),討論P(yáng)CB分層堆疊在控制EMI輻射中的作用和設(shè)計(jì)技巧。
標(biāo)簽: PCB EMI 多層板 計(jì)時(shí)
上傳時(shí)間: 2013-12-18
上傳用戶:yyq123456789
Integrated EMI/Thermal Design forSwitching Power SuppliesWei ZhangThesis submitted to the Faculty of theVirginia Polytechnic Institute and State Universityin partial fulfillment of the requirements for the degree of Integrated EMI/Thermal Design forSwitching Power SuppliesWei Zhang(ABSTRACT)This work presents the modeling and analysis of EMI and thermal performancefor switch power supply by using the CAD tools. The methodology and design guidelinesare developed.By using a boost PFC circuit as an example, an equivalent circuit model is builtfor EMI noise prediction and analysis. The parasitic elements of circuit layout andcomponents are extracted analytically or by using CAD tools. Based on the model, circuitlayout and magnetic component design are modified to minimize circuit EMI. EMI filtercan be designed at an early stage without prototype implementation.In the second part, thermal analyses are conducted for the circuit by using thesoftware Flotherm, which includes the mechanism of conduction, convection andradiation. Thermal models are built for the components. Thermal performance of thecircuit and the temperature profile of components are predicted. Improved thermalmanagement and winding arrangement are investigated to reduce temperature.In the third part, several circuit layouts and inductor design examples are checkedfrom both the EMI and thermal point of view. Insightful information is obtained.
標(biāo)簽: EMI 開關(guān)電源 英文
上傳時(shí)間: 2013-11-16
上傳用戶:萍水相逢
EMI返回電流路徑設(shè)計(jì)
上傳時(shí)間: 2013-10-12
上傳用戶:wang5829
採用ROM監(jiān)控器的調(diào)試技巧分析
上傳時(shí)間: 2015-02-23
上傳用戶:wfl_yy
關(guān)于EMI的文檔,
上傳時(shí)間: 2013-11-29
上傳用戶:stewart·
對多維的矩陣,做大量矩陣的的計(jì)算,來試探實(shí)際效能以及處理時(shí)間.
標(biāo)簽: 效能
上傳時(shí)間: 2015-03-26
上傳用戶:許小華
/** * @author jakcy_wu(wujichun) * * 預(yù)測分析--本算法只適用于受周期變化或者波動影響的數(shù)據(jù) * 權(quán)值移動平均算法 * 本期預(yù)測值=(前期值*權(quán)數(shù))求和/n * * 默認(rèn)權(quán)值為{1,1,1},取最近3次的平均 * 注意權(quán)值和必須=權(quán)值集合.length */
標(biāo)簽: jakcy_wu wujichun author 算法
上傳時(shí)間: 2014-01-26
上傳用戶:weiwolkt
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