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.
上传时间： 2013-11-16
上传用户：萍水相逢
IEEE Std 1364.1-2002 IEEE Std. 1364.1 - 2002 IEEE Standard for Verilog Register Transfer Level Synthesis.rar
上传时间： 2013-12-23
上传用户：erkuizhang
算法ebook(10部算法经典著作的合集) 算法ebook> 10部算法经典著作的合集 chm格式 (1)Fundamentals of Data Structures by Ellis Horowitz and Sartaj Sahni (2)Data Structures, Algorithms and Program Style Using C by James F. Korsh and Leonard J. Garrett (3)Data Structures and Algorithm Analysis in C by Mark Allen Weiss (4)Data Structures: From Arrays to Priority Queues by Wayne Amsbury (5)Information Retrieval: Data Structures & Algorithms edited by William B. Frakes and Ricardo Baeza-Yates (6)Introduction to Algorithms by Thomas H. Cormen, Charles E. Leiserson, and Ronald L. Rivest (7)Practical Data Structures in C++ by Bryan Flamig (8)Reliable Data Structures in C by Thomas Plum (9)Data Structures and Algorithms Alfred V. Aho, Bell Laboratories, Murray Hill, New Jersey John E. Hopcroft, Cornell University, Ithaca, New York Jeffrey D. Ullman, Stanford University, Stanford, California (10)DDJ Algorithms and Data Structures Articles
标签： ebook Fundamentals Structures Ellis
上传时间： 2015-04-04
上传用户：tfyt
The GRLIB IP Library is an integrated set of reusable IP cores, designed for system-on-chip (SOC) development. The IP cores are centered around the common on-chip bus, and use a coherent method for simulation and synthesis. The library is vendor independent, with support for different CAD tools and target technologies. A unique plug&play method is used to configure and connect the IP cores without the need to modify any global resources.
标签： system-on-chip integrated designed reusable
上传时间： 2013-12-20
上传用户：小眼睛LSL
TC 2.0 挖地雷 关于TC2.0版的挖地雷 1、整个游戏基于事件驱动的工作方式，这一点和windows应用程序是相通的。在程序的主 干中，不停的捕捉鼠标事件，再通过一个函数： Bool analysis(CPoint point, ClickInfor infor) 来分析鼠标事件作用在哪个对象上（游戏中的元素，比如按钮、菜单、地雷单元格都是 作为一个对象来看待），然后把鼠标事件分配到相应的对象上。不同的对象，对鼠标事件 有自己的事件处理函数，比如菜单的事件处理函数有两个：单击菜单项和鼠标焦点落在 菜单项上。菜单对象能够依据analysis传给它的击键信息，来判断到底调用哪个事件处 理函数。（在windows编程中，其实也是给对象或控件写事件处理函数）。 当然了，我这个程序中事件处理机制是非常基础和简单的，因为用的是TC2.0的编译器， 所以很多东西要自己写，会麻烦一些。 ………………详细情况见包内文档！
上传时间： 2013-12-24
上传用户：佳期如梦
计算所汉语词法分析系统ICTCLAS介绍 词是最小的能够独立活动的有意义的语言成分。 但汉语是以字为基本的书写单位，词语之间没有明显的区分标记，因此，中文词语分析是中文信息处理的基础与关键。为此,我们中国科学院计算技术研究所在多年研究基础上，耗时一年研制出了汉语词法分析系统ICTCLAS(Institute of Computing Technology, Chinese Lexical Analysis System)，该系统的功能有：中文分词；词性标注；未登录词识别。分词正确率高达97%以上，未登录词识别召回率均高于90%，其中中国人名的识别召回率接近98%处理速度为31.5Kbytes/s。ICTCLAS的特色还在于：可以根据需要输出多个高概率结果，有多种输出格式，支持北大词性标注集，973专家组给出的词性标注集合。该系统得到了专家的好评，并有多篇论文在国内外发表。 计算所汉语词法分析系统ICTCLAS同时还提供一套完整的动态连接库ICTCLAS.dll和相应的概率词典,开发者可以完全忽略汉语词法分析，直接在自己的系统中调用ICTCLAS，ICTCLAS可以根据需要输出多个高概率的结果，输出格式也可以定制，开发者在分词和词性标注的基础上继续上层开发。
上传时间： 2014-01-02
上传用户：15736969615
FIR Filter Design（有限冲击响应滤波器设计），包括ideal bandpass filter impulse response、Modified Bessel function、Kaiser window parameters for spectral analysis等12种FIR设计matlab源代码
上传时间： 2015-05-20
上传用户：Miyuki
matlab矩阵处理例程。A matrix processor, Matx_Proc() is developed which can be used to process and edit matrices and state space models, and perform various kind of matrix analysis in a visible way.
标签： Matx_Proc developed processor process
上传时间： 2015-06-23
上传用户：Breathe0125
§ Debussy有四個主要單元(component)，nTrace、nWave、nSchema、nState § nTrace -- Hypertext source code analysis and browse tool (為％Debussy &所開啟的主畫面) § nWave -- Waveform analysis tool (可由nTrace內開啟，或直接％nWave &開啟) § nSchema -- Hierarchy schematic generator
上传时间： 2015-06-25
上传用户：13215175592
-- Booth Multiplier -- This file contains all the entity-architectures for a complete -- k-bit x k-bit Booth multiplier. -- the design makes use of the new shift operators available in the VHDL-93 std -- this design passes the Synplify synthesis check -- download from: www.fpga.com.cn & www.pld.com.cn
标签： entity-architectures Multiplier contains complete
上传时间： 2015-07-02
上传用户：2467478207
