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Engineering

  • 《牛津英语 电子与机械工程》

    ·《牛津英语 电子与机械工程》(Oxford English for Electrical and Mechanical Engineering)资料链接 http://www.oup.com/elt/catalogue/isbn/5286?cc=global国外高校学生或工程人员的学习用书,内容生动实用,英语与专业知识的结合,中级读物,值得向大家推荐。

    标签: nbsp 牛津 机械工程 英语

    上传时间: 2013-07-22

    上传用户:gdgzhym

  • 软件技术开发全集

    ·包括《人月神话》,《微软模式》,《华为编程开发规范与案例》,《UML with Rational Rose 从入门到精通》,《UML 中文教程》,《UML 参考手册》,《UML 1.3 标准》文件列表:   Software Engineering  ......\UML  ......\...\UML 1.3 标准  ......\...\........

    标签: 软件 技术开发

    上传时间: 2013-06-30

    上传用户:徐孺

  • US Navy VHDL Modelling Guide

      This document was developed under the Standard Hardware and Reliability Program (SHARP) TechnologyIndependent Representation of Electronic Products (TIREP) project. It is intended for use by VHSIC HardwareDescription Language (VHDL) design engineers and is offered as guidance for the development of VHDL modelswhich are compliant with the VHDL Data Item Description (DID DI-EGDS-80811) and which can be providedto manufacturing Engineering personnel for the development of production data and the subsequent productionof hardware. Most VHDL modeling performed to date has been concentrated at either the component level orat the conceptual system level. The assembly and sub-assembly levels have been largely disregarded. Under theSHARP TIREP project, an attempt has been made to help close this gap. The TIREP models are based upon lowcomplexity Standard Electronic Modules (SEM) of the format A configuration. Although these modules are quitesimple, it is felt that the lessons learned offer guidance which can readily be applied to a wide range of assemblytypes and complexities.

    标签: Modelling Guide Navy VHDL

    上传时间: 2014-12-23

    上传用户:xinhaoshan2016

  • Analog Circuit Design in Porta

    •Founded in Jan. 08, 2001 in Shanghai, China.•Fabless IDH focused on Analog & Mixed Signal Chip design & marketing •Over 100 IC introduced.•Over 200 OEM Customer worldwide•ISO-9000 Certified•Distribution Channel in Taiwan, China & Japan To achieve 100% customer satisfactionby producing the technically advanced product with the best quality, on-time delivery and service. Leverages on proprietary process and world-class Engineering team to develop innovative & high quality analog solutions that add value to electronics equipment.

    标签: Circuit Analog Design Porta

    上传时间: 2013-10-24

    上传用户:songnanhua

  • 高速数字系统设计下载pdf

    高速数字系统设计下载pdf:High-Speed Digital SystemDesign—A Handbook ofInterconnect Theory and DesignPracticesStephen H. HallGarrett W. HallJames A. McCallA Wiley-Interscience Publication JOHN WILEY & SONS, INC.New York • Chichester • Weinheim • Brisbane • Singapore • TorontoCopyright © 2000 by John Wiley & Sons, Inc.speeddigital systems at the platform level. The book walks the reader through everyrequired concept, from basic transmission line theory to digital timing analysis, high-speedmeasurement techniques, as well as many other topics. In doing so, a unique balancebetween theory and practical applications is achieved that will allow the reader not only tounderstand the nature of the problem, but also provide practical guidance to the solution.The level of theoretical understanding is such that the reader will be equipped to see beyondthe immediate practical application and solve problems not contained within these pages.Much of the information in this book has not been needed in past digital designs but isabsolutely necessary today. Most of the information covered here is not covered in standardcollege curricula, at least not in its focus on digital design, which is arguably one of the mostsignificant industries in electrical Engineering.The focus of this book is on the design of robust high-volume, high-speed digital productssuch as computer systems, with particular attention paid to computer busses. However, thetheory presented is applicable to any high-speed digital system. All of the techniquescovered in this book have been applied in industry to actual digital products that have beensuccessfully produced and sold in high volume.Practicing engineers and graduate and undergraduate students who have completed basicelectromagnetic or microwave design classes are equipped to fully comprehend the theorypresented in this book. At a practical level, however, basic circuit theory is all thebackground required to apply the formulas in this book.

    标签: 高速数字 系统设计

    上传时间: 2013-10-26

    上传用户:缥缈

  • 电源工程师-电路设计中的英雄

    Abstract: We don't expect manufacturers to produce clothes that in one size that fits everyone. In thesame way, one ESD component can't solve all issues—each application has different ESD requirements.Knowing that "one size fits all" cannot apply to power design, the power designer, or the Engineering"super hero," must consider all the potential disruptions to a steady flow of power and thenvarious waysto mitigate them. This tutorial describes voltage- and current-limiting devices and risetime reducers tomanage the power. It also points to free and low-cost software tools to help design lowpass filters, checkcapacitor self-resonance, and simulate circuits.

    标签: 电源工程师 电路设计

    上传时间: 2013-11-17

    上传用户:zhouxuepeng1

  • 超级电容器备用电源系统的手持设备数据保护

      Handheld electronic devices play a key role in our everydaylives. Because dependability is paramount, handhelds arecarefully engineered with lightweight power sources forreliable use under normal conditions. But no amount ofcareful Engineering can prevent the mistreatment theywill undergo at the hands of humans. For example, whathappens when a factory worker drops a bar code scanner,causing the battery to pop out? Such events areelectronically unpredictable, and important data storedin volatile memory would be lost without some form ofsafety net—namely a short-term power holdup systemthat stores suffi cient energy to supply standby power untilthe battery can be replaced or the data can be stored inpermanent memory.

    标签: 超级电容器 备用电源 手持设备

    上传时间: 2013-11-04

    上传用户:coeus

  • LTC6994参考设计及PCB布线规则

    Demonstration circuit 1562A is an Engineering toolto design and evaluate the LTC699X-X family ofTimerBlox circuits. The center section of the boardcontains a pre-configured TimerBlox function.DC1562A comes in twelve timing function variationsas outlined in Table 1.Surrounding the center board is a ”playground”prototyping area. The prototyping area has padsfor Dip-8, S8, MS8, or S6 packages with breadboarding connections to each pin and two convenientpower buses and ground bus surrounding theentire area. This area is for conditioning signals tocontrol the timer function and for adding loads controlled in time.

    标签: 6994 LTC PCB 参考设计

    上传时间: 2013-10-18

    上传用户:如果你也听说

  • 西门子S7-300 PLC模拟量转换

    Analog Inputs and Outputs in an S7 PLC are represented in the PLC as a 16-bit integer. Over the nominal span of the analog input or output, the value of this integer will range between - 27648 and +27648. However, it is easier to use the analog values if they are scaled to the same units and ranges as the process being controlled. This applications tip describes methods for scaling analog values to and from Engineering units.

    标签: 300 PLC 西门子 模拟量

    上传时间: 2013-11-17

    上传用户:3294322651

  • 基于AT89C52单片机的语音录放系统

       设计一种基于AT89C52的语音录放系统,利用单片机、ISD2560语音录放器件、麦克风、扬声器等元器件实现硬件电路的设计,并利用C51高级语言设计ISD2560器件控制字的写入和定时中断程序。经软硬件调试,结果表明该系统录放效果良好,具有一定的工程实用价值。 Abstract:  Voice recording and playback system based on AT89C52is designed in this paper.Using the single-chip microcomputer,voice recording and playback chip ISD2560,microphone and speaker to realize the hardware circuit design.Writing ISD2560control words and timing interrupt procedures are designed by C51advanced language.Through the hardware and software test,voice recording and playback system play better voice,and this system has some Engineering practical values.

    标签: 89C C52 AT 89

    上传时间: 2013-10-20

    上传用户:ywcftc277