Electrostatic discharge (ESD) events can have serious detrimental effects on the manufacture and performance of microelectronic devices, the systems that contain them, and the manufacturing facilities used to produce them. Submicron device technologies, high system operating speeds, and factory automation are making ESD control programs a critical factor in the quality and reliability of ESD-sensitive products.
標(biāo)簽： Management Program ESD
上傳時(shí)間： 2020-06-05
上傳用戶：shancjb
Five years have passed since the first edition of this book was published.Over the five years,the world has witnessed a technological revolution headlined by an array of exciting consumer and industrial products such as the Nintendo Wii, Apple iPod/iPad, sensor-rich smart phones, phones with cameras,new operating systems for mobile phones and apps,e-books,WiFi,voice- over-IP calls, social networking, 3D animated movies, and cloud computing, to name the major ones that affect everyday living
標(biāo)簽： Foundations MEMS of
上傳時(shí)間： 2020-06-06
上傳用戶：shancjb
The Raspberry Pi has become a computing phenomenon. This single-board miniature computer, first released in February 2012 by the Raspberry Pi Foundation, has grown into a series of nearly a dozen models that have sold a total of more than 10 million units in five years. Inexpensive to buy and to run, Raspberry Pi computers are great for enthusiasts, good for games, and fun for children. Raspberry Pi computers are also terrific in the classroom, enabling you to put on each desk an easily-manageable computer on which students can do everything from learning Internet use and essential office software skills, through grasping programming basics in an easy-to-learn format, to performing full-on programming in Python, Java, C, and other languages. Better yet, you can install all the software needed for those activities automatically alongside the operating system.
標(biāo)簽： Deploying Classroom Raspberry the Pi in
上傳時(shí)間： 2020-06-06
上傳用戶：shancjb
n present power system, the engineers face variety of challenges in planning, construction and operation. In some of the problems, the engineers need to use managerial talents. In system design or upgrading the entire system into automatic control instead of slow response of human operator, the engineers need to exercise more technical knowledge and experience. It is principally the engi- neer’s ability to achieve the success in all respect and provide the reliable and uninterrupted service to the customers. This chapter covers some important areas of the traditional power system that helps engineers to overcome the challenges. It emphasizes the characteristics of the various components of a power system such as generation, transmission, distribution, protection and SCADA system. During normal operating conditions and disturbances, the acquired knowledge will pro- vide the engineers the ability to analyse the performance of the complex system and execute future improvement
上傳時(shí)間： 2020-06-07
上傳用戶：shancjb
Switched systems are embedded devices widespread in industrial applications such as power electronics and automotive control. They consist of continuous-time dynamical subsystems and a rule that controls the switching between them. Under a suitable control rule, the system can improve its steady-state performance and meet essential properties, such as safety and stability, in desirable operating zones.
標(biāo)簽： Invariance Switching Analysis1 Systems by
上傳時(shí)間： 2020-06-07
上傳用戶：shancjb
Computer science as an academic discipline began in the 1960’s. Emphasis was on programming languages, compilers, operating systems, and the mathematical theory that supported these areas. Courses in theoretical computer science covered finite automata, regular expressions, context-free languages, and computability. In the 1970’s, the study of algorithms was added as an important component of theory. The emphasis was on making computers useful. Today, a fundamental change is taking place and the focus is more on a wealth of applications. There are many reasons for this change. The merging of computing and communications has played an important role. The enhanced ability to observe, collect, and store data in the natural sciences, in commerce, and in other fields calls for a change in our understanding of data and how to handle it in the modern setting. The emergence of the web and social networks as central aspects of daily life presents both opportunities and challenges for theory.
標(biāo)簽： Foundations Science Data of
上傳時(shí)間： 2020-06-10
上傳用戶：shancjb
redhat安裝注意事項(xiàng) linux operating system
標(biāo)簽： redhat 注意事項(xiàng)
上傳時(shí)間： 2021-02-09
上傳用戶：
Research on microwave power amplififiers has gained a growing importance demanded by the many continuously developing applications which require such subsystem performance. A broad set of commercial and strategic systems in fact have their overall performance boosted by the power amplififier, the latter becoming an enabling component wherever its effificiency and output power actually allows functionalities and operating modes previously not possible. This is the case for the many wireless systems and battery-operated systems that form the substrate of everyday life, but also of high-performance satellite and dual-use systems.
標(biāo)簽： 高效率 射頻 微波 固態(tài) 功率放大器
上傳時(shí)間： 2021-10-30
上傳用戶：得之我幸78
目前電動(dòng)汽車主要以鋰電池作為動(dòng)力來(lái)源,為了提高鋰電池的使用時(shí)間和安全性,為鋰電池提供安全良好的運(yùn)行環(huán)境,電池管理系統(tǒng)應(yīng)運(yùn)而生。BMS主控單元基于S32K144汽車級(jí)單片機(jī),通過(guò)主從式網(wǎng)絡(luò)控制結(jié)構(gòu)能夠?qū)︿囯姵氐母鱾€(gè)參數(shù)進(jìn)行采集與分析。采用擴(kuò)展卡爾曼濾波對(duì)電池的荷電狀態(tài)(SOC)進(jìn)行估算,克服普通估算方法無(wú)法避免電池內(nèi)阻誤差的缺點(diǎn),通過(guò)Matlab/Simulink軟件仿真驗(yàn)證可使估算誤差達(dá)到2%以內(nèi)。At present,electric vehicles mainly use lithium batteries as the power source.In order to improve the running time and safety of lithium batteries,a safe and good operating environment for power batteries is provided,and a battery management system(BMS) has emerged.The BMS main control unit is based on the S32K144 automotive-grade control chip.Through the master-slave network control structure,it can collect and analyze the various parameters of the lithium battery.The Extended Kalman Filter(EKF) is used to estimate the state of charge(SOC) of the battery,which overcomes the shortcomings of the internal estimation method that cannot overcome the internal resistance error of the battery.It can be verified by Matlab/Simulink software simulation.The estimation error is within 2%.
上傳時(shí)間： 2022-03-26
上傳用戶：XuVshu
本文主要介紹如何在Wado設(shè)計(jì)套件中進(jìn)行時(shí)序約束，原文出自 xilinx中文社區(qū)。1 Timing Constraints in Vivado-UCF to xdcVivado軟件相比于sE的一大轉(zhuǎn)變就是約束文件，5E軟件支持的是UcF（User Constraints file，而 Vivado軟件轉(zhuǎn)換到了XDc（Xilinx Design Constraints）。XDC主要基于SDc（Synopsys Design Constraints）標(biāo)準(zhǔn)，另外集成了Xinx的一些約束標(biāo)準(zhǔn)可以說(shuō)這一轉(zhuǎn)變是xinx向業(yè)界標(biāo)準(zhǔn)的靠攏。Altera從 TimeQuest開(kāi)始就一直使用SDc標(biāo)準(zhǔn)，這一改變，相信對(duì)于很多工程師來(lái)說(shuō)是好事，兩個(gè)平臺(tái)之間的轉(zhuǎn)換會(huì)更加容易些。首先看一下業(yè)界標(biāo)準(zhǔn)SDc的原文介紹：Synopsys widely-used design constraints format, known as sDc, describes the design intent"and surrounding constraints for synthesis, clocking, timing, power, test and environmental and operating conditions. sDc has been in use and evolving for more than 20 years, making it the most popular and proven format for describing design constraints. Essentially all synthesized designs use SDc and numerous EDa companies have translators that can read and process sDc
標(biāo)簽： vivado
上傳時(shí)間： 2022-03-26
上傳用戶：
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