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
The data plane of the reference design consists of a configurable multi-channel XBERT modulethat generates and checks high-speed serial data transmitted and received by the MGTs. Eachchannel in the XBERT module consists of two MGTs (MGTA and MGTB), which physicallyoccupy one MGT tile in the Virtex-4 FPGA. Each MGT has its own pattern checker, but bothMGTs in a channel share the same pattern generator. Each channel can load a differentpattern. The MGT serial rate depends on the reference clock frequency and the internal PMAdivider settings. The reference design can be scaled anywhere from one channel (two MGTs)to twelve channels (twenty-four MGTs).
上传时间： 2013-12-25
上传用户：jkhjkh1982
蓝宙电子USB-LIN总线转换器概况： USB-LIN总线转换器是蓝宙电子专为汽车电子及工业控制应用开发的USB-LIN总线双向转换器。该产品可实现电脑与LIN总线系统的连接，可作为各种LIN总线系统的主节点发送帧头及LIN报文；也可以作为LIN从节点响应主节点的数据请求；还可以作为LIN监视器监测记录LIN总线报文。配套的上位机软件LIN View可以方便的将USB-LIN总线转换器配置成主节点或从节点，可以添加节点报文发送序列，可以查看LIN报文。为客户提供用于二次开发的dll文件，客户可以基于此文件可开发出不同领域、不同应用的软件。
上传时间： 2014-01-13
上传用户：hxy200501
IP核生成文件：（Xilinx/Altera 同） IP核生成器生成 ip 后有两个文件对我们比较有用，假设生成了一个 asyn_fifo 的核，则asyn_fifo.veo 给出了例化该核方式（或者在 Edit－》Language Template-》COREGEN 中找到verilog/VHDL 的例化方式）。asyn_fifo.v 是该核的行为模型，主要调用了 xilinx 行为模型库的模块，仿真时该文件也要加入工程。（在 ISE中点中该核，在对应的 processes 窗口中运行“ View Verilog Functional Model ”即可查看该 .v 文件）。如下图所示。
上传时间： 2013-11-02
上传用户：谁偷了我的麦兜
ARM通讯 H-JTAG 是一款简单易用的的调试代理软件，功能和流行的MULTI-ICE 类似。H-JTAG 包括两个工具软件：H-JTAG SERVER 和H-FLASHER。其中，H-JTAG SERVER 实现调试代理的功能，而H-FLASHER则实现了FLASH 烧写的功能。H-JTAG 的基本结构如下图1-1所示。 H-JTAG支持所有基于ARM7 和ARM9的芯片的调试，并且支持大多数主流的ARM调试软件，如ADS、RVDS、IAR 和KEIL。通过灵活的接口配置，H-JTAG 可以支持WIGGLER，SDT-JTAG 和用户自定义的各种JTAG 调试小板。同时，附带的H-FLASHER 烧写软件还支持常用片内片外FLASH 的烧写。使用H-JTAG，用户能够方便的搭建一个简单易用的ARM 调试开发平台。H-JTAG 的功能和特定总结如下： 1. 支持 RDI 1.5.0 以及 1.5.1； 2. 支持所有ARM7 以及 ARM9 芯片； 3. 支持 THUMB 以及ARM 指令； 4. 支持 LITTLE-ENDIAN 以及 BIG-ENDIAN； 5. 支持 SEMIHOSTING； 6. 支持 WIGGLER， SDT-JTAG和用户自定义JTAG调试板； 7. 支持 WINDOWS 9.X/NT/2000/XP； 8．支持常用FLASH 芯片的编程烧写； 9. 支持LPC2000 和AT91SAM 片内FLASH 的自动下载；
上传时间： 2013-11-19
上传用户：水中浮云
XMail is an Internet and intranet mail server featuring an SMTP server, POP3 server, finger server, multiple domains, no need for users to have a real system account, SMTP relay checking, RBL/RSS/ORBS/DUL and custom ( IP based and address based ) spam protection, SMTP authentication ( PLAIN LOGIN CRAM-MD5 POP3-before-SMTP and custom ), a POP3 account syncronizer with external POP3 accounts, account aliases, domain aliases, custom mail processing, direct mail files delivery, custom mail filters, mailing lists, remote administration, custom mail exchangers, logging, and multi-platform code. XMail sources compile under GNU/Linux, FreeBSD, OpenBSD, NetBSD, OSX, Solaris and NT/2K/XP.
标签： server featuring Internet intranet
上传时间： 2015-01-12
上传用户：asddsd
来自《VC6.0可视化编程》的源码，适用于初学者。 这是第一章，关于multi windows 的代码
上传时间： 2013-12-20
上传用户：TF2015
linux下的gdbserver源码，供multi-ice调试ARM处理器
上传时间： 2013-12-24
上传用户：txfyddz
The practice of enterprise application development has benefited from the emergence of many new enabling technologies. Multi-tiered object-oriented platforms, such as Java and .NET, have become commonplace.
标签： application development enterprise benefited
上传时间： 2015-03-11
上传用户：aig85
excel 文档的导入导出，Delphi，thank you very much to have a view
上传时间： 2015-03-14
上传用户：jhksyghr
