CPLD/FPGA是目前诮用最为广泛的两种可编程专用集成电路(ASIC),特别适合于产品的样品开发与小批量生产。本书从现代电子系统设计的角度出发,以全球著名的可编程逻辑器件供应商Xilinx公司的产品为背景,系统全面地介绍该公司的CPLD/FPGA产品的结构原理、性能特点、设计方法以及相应的EDA工具软件,重点介绍CPLD/FPGA在数字系统设计、数字通信与数字信号处理等领域中的应用。\r\n 本书内容新颖、技术先进、由浅入深,既有关于大规模可编辑逻辑器件的系统论述,又有丰富的设计应用实例。对于从事各类
上传时间: 2013-09-06
上传用户:Maple
D类数字输入放大器的简化系统设计
上传时间: 2013-11-04
上传用户:immanuel2006
1) 全数字化设计,交流采样,人机界面采用大屏幕点阵图形128X64 LCD中文液晶显示器。 2) 可实时显示A、B、C各相功率因数、电压、电流、有功功率、无功功率、电压总谐波畸变率、电流总谐波畸变率、电压3、5、7、9、11、13次谐波畸变率、电流3、5、7、9、 11、13次谐波畸变率频率、频率、电容输出显示及投切状态、报警等信息。 3) 设置参数中文提示,数字输入。 4) 电容器控制方案支持三相补偿、分相补偿、混合补偿方案,可通过菜单操作进行设置。 5) 电容器投切控制程序支持等容/编码(1:2、 1:2:3、 1:2:4:8…)等投切方式。 6) 具有手动补偿/自动补偿两种工作方式。 7) 提供电平控制输出接口(+12V),动态响应优于20MS。 8) 取样物理量为无功功率,具有谐波测量及保护功能。 9) 控制器具有RS-485通讯接口,MODBUS标准现场总线协议,方便接入低压配电系统。
上传时间: 2013-11-09
上传用户:dancnc
为了将通信系统中数字基带信号调制到中频信号上,采用数字上变频技术,通过对数字I、Q两路基带信号进行FIR成形滤波、半带插值滤波、数字混频处理得到正交调制后的中频信号,最后经MATLAB仿真分析得到相应的时域和频域图,来验证电路设计的有效性。
上传时间: 2013-10-22
上传用户:1318695663
2012TI杯陕西赛题H题,2012TI杯陕西赛题B题--频率补偿电路.
上传时间: 2013-10-07
上传用户:ysystc670
实用数字系统设计与实现,数码管的设计
上传时间: 2013-10-22
上传用户:kongrong
凌力尔特数字系统的线性电路—凌力尔特一直致力服务全球模拟产品用户,满足日益增长的严格模拟产品设计的需求。公司具有超强的创新能力,每年推出的新产品超过200款,该公司产品的应用领域包括电信、蜂窝电话、网络产品、笔记本电脑和台式电脑等等。
上传时间: 2014-12-23
上传用户:haohaoxuexi
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.
上传时间: 2013-10-26
上传用户:缥缈
为了改变目前电网现场作业管理的变电巡检、变电检修试验、输电线路巡检检修等管理系统各自独立运行,信息不能共享,功能、效率受限,建设和维护成本高的现状,提出了采用B/S+C/S构架模式,将各现场作业管理模块和生产MIS(管理系统)集成为一体的现场作业管理系统的设计方案,做到各子系统和生产MIS软硬资源共享,做到同一数据唯一入口、一处录入多处使用。各子系统设备人员等基础信息来源于生产管理系统,各子系统又是生产管理系统的作业数据、缺陷信息的重要来源。经过研究试用成功和推广应用,目前该系统已在江西电网220 kV及以上变电站全面应用。 Abstract: In order to improve the status that the substation field inspection system, substation equipments maintenance and testing system, power-line inspection and maintenance system are running independent with each other. They can?蒺t share the resource information which accordingly constrains their functions and efficiency, and their construction and maintenance costs are high. This paper introduces a field standardized work management system based on B/S+C/S mode, integrating all field work management systems based on MIS and share the equipments and employee?蒺s data of MIS,the field work data of the sub systems are the source information of MIS, by which the same single data resouce with one-time input can be utilized in multiple places. After the research and testing, this system is triumphantly using in all 220kV and above substations in Jiangxi grid.
上传时间: 2013-11-15
上传用户:han_zh
设计了一种基于两片AVR单片机的交通诱导屏显示单元控制系统,该系统由通信模块、显示控制模块和开关模块3部分组成。单片机A用于以RS-485的通信方式接收数据和应答主机,把处理好的数据发送到I/O口并写入EEPROM中,再通知单片机B读取数据。单片机B接收到数据后控制LED显示,通过调节驱动LED电流占空比的方式调节LED的亮度。给出了控制系统的硬件和软件设计方案。
上传时间: 2013-10-13
上传用户:wenyuoo