欢迎使用 PowerPCB 教程。本教程描述了 PADS-PowerPCB 的绝大部分功能和特点，以及使用的各个过程，这些功能包括： · 基本操作 · 建立元件(Component) · 建立板子边框线(Board outline) · 输入网表(Netlist) · 设置设计规则(Design Rule) · 元件(pARt)的布局(Placement) · 手工和交互的布线 · SPECCTRA全自动布线器(Route Engine) · 覆铜(Copper Pour) · 建立分隔/混合平面层(Split/mixed Plane) · Microsoft的目标连接与嵌入(OLE)(Object Linking Embedding) · 可选择的装配选件(Assembly options) · 设计规则检查(Design Rule Check) · 反向标注(Back Annotation) · 绘图输出(Plot Output) 使用本教程后，你可以学到印制电路板设计和制造的许多基本知识。
上传时间： 2013-10-08
上传用户：x18010875091
ORCAD在使用的时候总会出现这样或那样的问题…但下这个问题比较奇怪…在ORCAD中无法输出网表…弹出下面的错误….这种问题很是奇怪…Netlist Format: tango.dllDesign Name: D:\EDA_PROJECT\PROTEL99SE\YK\SV3200\MAIN.DSNERROR [NET0021] Cannot get pARt.[FMT0024] Ref-des not found. Possible Logical/Physical annotation conflict.[FMT0018] Errors processing intermediate file找了一天没找到问题…终于在花了N多时间后发现问题所在…其实这个问题就是不要使用ORCAD PSPICE 库里面的元件来画电路图…实际中我是用了PSPICE里面和自己制作的二种电阻和电容混合在一起…就会出现这种问题…
上传时间： 2013-11-02
上传用户：sz_hjbf
Silicon Motion, Inc. has made best efforts to ensure that the information contained in this document is accurate andreliable. However, the information is subject to change without notice. No responsibility is assumed by SiliconMotion, Inc. for the use of this information, nor for infringements of patents or other rights of third pARties.Copyright NoticeCopyright 2002, Silicon Motion, Inc. All rights reserved. No pARt of this publication may be reproduced, photocopied,or transmitted in any form, without the prior written consent of Silicon Motion, Inc. Silicon Motion, Inc. reserves theright to make changes to the product specification without reservation and without notice to our users
标签： GUIDELINES LAYOUT 320 PCB
上传时间： 2013-10-10
上传用户：manga135
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
superpro 3000u 驱动 PIC16C65B@QFP44 [SA245] PIC16C65B: pARt number QFP44: Package in QFP44 SA245: Adapter purchase number AM29DL320GT@FBGA48 [SA642+B026] AM29DL320GT: pARt number FBGA48: Package in FBGA48 SA642: Adapter purchase number (Top board with socket) B026: Adapter purchase number (Bottom board, exchangable for different pARts) 87C196CA@PLCC68(universal adapter) [PEP+S414T] 87C196CA: pARt number PLCC68: Package in PLCC68 universal adapter: this adapter is valid for all pARts in this package PEP: The PEP (Pin-driver Expansion Pack necessary to work with the adapter S414T) S414T: Adapter purchase number (Universal for all pARts in this package) S71PL127J80B@FBGA64(special adapter) [(SA642A-B079A-Y096AF001)] S71PL127J80B: pARt number FBGA64: Package in FBGA64 special adapter: this adapter is valid for this
上传时间： 2014-03-27
上传用户：ippler8
The ROSETTA C++ library is a collection of C++ classes and routines that enable discernibility-based empirical modelling and data mining, developed as pARt of my dissertation. A brief presentation of the library can be found therein.
标签： discernibility-based collection routines ROSETTA
上传时间： 2015-03-12
上传用户：开怀常笑
Sanos Operating System Kernel ----------------------------- Sanos is an OS kernel for use in PC based server appliances. The kernel was developed as pARt of an experiment on investigating the feasibility of running java server applications without a traditional operating system only using a simple kernel.
标签： Sanos Operating Kernel System
上传时间： 2014-01-03
上传用户：1159797854
The Kannel Open Source WAP and SMS gateway works as both an SMS gateway, for implementing keyword based services via GSM text messages, and a WAP gateway, via UDP. The SMS pARt is fairly mature, the WAP pARt is early in its development. In this release, the GET request for WML pages and WMLScript files via HTTP works, including compilation for WML and WMLScript to binary forms. Only the data call bearer (UDP) is supported, not SMS.
标签： gateway implementing SMS keyword
上传时间： 2014-01-11
上传用户：2525775
Description: FASBIR(Filtered Attribute Subspace based Bagging with Injected Randomness) is a variant of Bagging algorithm, whose purpose is to improve accuracy of local learners, such as kNN, through multi-model perturbing ensemble. Reference: Z.-H. Zhou and Y. Yu. Ensembling local learners through multimodal perturbation. IEEE Transactions on Systems, Man, and Cybernetics - pARt B: Cybernetics, 2005, vol.35, no.4, pp.725-735.
标签： Description Randomness Attribute Filtered
上传时间： 2015-04-10
上传用户：ynzfm
Description: S-ISOMAP is a manifold learning algorithm, which is a supervised variant of ISOMAP. Reference: X. Geng, D.-C. Zhan, and Z.-H. Zhou. Supervised nonlinear dimensionality reduction for visualization and classification. IEEE Transactions on Systems, Man, and Cybernetics - pARt B: Cybernetics, 2005, vol.35, no.6, pp.1098-1107.
标签： Description supervised algorithm S-ISOMAP
上传时间： 2015-04-10
上传用户：wfeel
