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.
上傳時間： 2013-11-16
上傳用戶：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).
上傳時間： 2013-12-25
上傳用戶：jkhjkh1982
藍宙電子USB-LIN總線轉換器概況： USB-LIN總線轉換器是藍宙電子專為汽車電子及工業控制應用開發的USB-LIN總線雙向轉換器。該產品可實現電腦與LIN總線系統的連接，可作為各種LIN總線系統的主節點發送幀頭及LIN報文；也可以作為LIN從節點響應主節點的數據請求；還可以作為LIN監視器監測記錄LIN總線報文。配套的上位機軟件LIN View可以方便的將USB-LIN總線轉換器配置成主節點或從節點，可以添加節點報文發送序列，可以查看LIN報文。為客戶提供用于二次開發的dll文件，客戶可以基于此文件可開發出不同領域、不同應用的軟件。
上傳時間： 2014-01-13
上傳用戶：hxy200501
IP核生成文件：（Xilinx/Altera 同） IP核生成器生成 ip 后有兩個文件對我們比較有用，假設生成了一個 asyn_fifo 的核，則asyn_fifo.veo 給出了例化該核方式（或者在 Edit－》Language Template-》COREGEN 中找到verilog/VHDL 的例化方式）。asyn_fifo.v 是該核的行為模型，主要調用了 xilinx 行為模型庫的模塊，仿真時該文件也要加入工程。（在 ISE中點中該核，在對應的 processes 窗口中運行“ View Verilog Functional Model ”即可查看該 .v 文件）。如下圖所示。
上傳時間： 2013-11-02
上傳用戶：誰偷了我的麥兜
ARM通訊 H-JTAG 是一款簡單易用的的調試代理軟件，功能和流行的MULTI-ICE 類似。H-JTAG 包括兩個工具軟件：H-JTAG SERVER 和H-FLASHER。其中，H-JTAG SERVER 實現調試代理的功能，而H-FLASHER則實現了FLASH 燒寫的功能。H-JTAG 的基本結構如下圖1-1所示。 H-JTAG支持所有基于ARM7 和ARM9的芯片的調試，并且支持大多數主流的ARM調試軟件，如ADS、RVDS、IAR 和KEIL。通過靈活的接口配置，H-JTAG 可以支持WIGGLER，SDT-JTAG 和用戶自定義的各種JTAG 調試小板。同時，附帶的H-FLASHER 燒寫軟件還支持常用片內片外FLASH 的燒寫。使用H-JTAG，用戶能夠方便的搭建一個簡單易用的ARM 調試開發平臺。H-JTAG 的功能和特定總結如下： 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和用戶自定義JTAG調試板； 7. 支持 WINDOWS 9.X/NT/2000/XP； 8．支持常用FLASH 芯片的編程燒寫； 9. 支持LPC2000 和AT91SAM 片內FLASH 的自動下載；
上傳時間： 2013-11-19
上傳用戶：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.
標簽： server featuring Internet intranet
上傳時間： 2015-01-12
上傳用戶：asddsd
來自《VC6.0可視化編程》的源碼，適用于初學者。 這是第一章，關于multi windows 的代碼
上傳時間： 2013-12-20
上傳用戶：TF2015
linux下的gdbserver源碼，供multi-ice調試ARM處理器
上傳時間： 2013-12-24
上傳用戶：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.
標簽： application development enterprise benefited
上傳時間： 2015-03-11
上傳用戶：aig85
excel 文檔的導入導出，Delphi，thank you very much to have a view
上傳時間： 2015-03-14
上傳用戶：jhksyghr
