电子设计工程师认证考试测试，可以试试
上传时间： 2013-11-12
上传用户：gokk
2012年目前最新版
标签： Designer Altium 24016 1089
上传时间： 2013-11-23
上传用户：lliuhhui
3C认证
上传时间： 2013-10-09
上传用户：ytulpx
This white paper discusses how market trends, the need for increased productivity, and new legislation have accelerated the use of safety systems in industrial machinery. This TÜV-qualified FPGA design methodology is changing the paradigms of safety designs and will greatly reduce development effort, system complexity, and time to market. This allows FPGA users to design their own customized safety controllers and provides a significant competitive advantage over traditional microcontroller or ASIC-based designs. Introduction The basic motivation of deploying functional safety systems is to ensure safe operation as well as safe behavior in cases of failure. Examples of functional safety systems include train brakes, proximity sensors for hazardous areas around machines such as fast-moving robots, and distributed control systems in process automation equipment such as those used in petrochemical plants. The International Electrotechnical Commission’s standard, IEC 61508: “Functional safety of electrical/electronic/programmable electronic safety-related systems,” is understood as the standard for designing safety systems for electrical, electronic, and programmable electronic (E/E/PE) equipment. This standard was developed in the mid-1980s and has been revised several times to cover the technical advances in various industries. In addition, derivative standards have been developed for specific markets and applications that prescribe the particular requirements on functional safety systems in these industry applications. Example applications include process automation (IEC 61511), machine automation (IEC 62061), transportation (railway EN 50128), medical (IEC 62304), automotive (ISO 26262), power generation, distribution, and transportation. 图Figure 1. Local Safety System
上传时间： 2013-11-14
上传用户：zoudejile
2012最新版《逻辑分析仪基础知识》：与许多电子测试和测量工具一样，逻辑分析仪是一种针对特定类型问题的解决方案。它是一种通用工具，可以帮助您调试数字硬件、检验设计和调试嵌入式软件。对设计数字电路的工程师来说，逻辑分析仪是一种不可或缺的工具。 逻辑分析仪用于涉及大量信号或挑战性触发要求的数字测量。 我们将首先考察数字示波器及逻辑分析仪的演进。然后，我们将介绍基本逻辑分析仪的构成要素。在有了这些基础知识后，我们将介绍逻辑分析仪有哪些重要功能，及其为什么在为特定应用选择适当工具时发挥重要作用。
上传时间： 2014-01-10
上传用户：黄婷婷思密达
Perl写的CA认证程序，用到了OpenSSL
上传时间： 2013-12-07
上传用户：dbs012280
提供了很多种加密算法和CA认证及相关服务如CMP、OCSP等的开发
上传时间： 2015-01-04
上传用户：stewart·
IBM提供的CA认证系统，但缺少一个编译用到的加密库
上传时间： 2014-01-12
上传用户：杜莹12345
52Asp.Net同学录新版Ver0515(全源码提供).rar
上传时间： 2015-01-07
上传用户：jyycc
抗震设计规范最新版
上传时间： 2013-12-28
上传用户：许小华
