驅動1700V IGBT的幾種高性能IC 選型設計:通過對幾種常用的1700V IGBT 驅動專用集成電路進行詳細的分析，對M579 系列和Concept 公司的2SD 系列進行深入的討論，給出了電氣
上傳時間： 2013-05-24
上傳用戶：huazi
《操作系統概念》第六版中文版，珍藏， 內有1-9章譯文，自己慢慢看吧。-<The Concept of operating system> sixth edition
標簽： 操作系統
上傳時間： 2013-06-09
上傳用戶：建建設設
系統組成.......................................................................................................................................................... 31.1 庫 ...................................................................................................................................................... 31.2 原理圖輸入 ...................................................................................................................................... 31.3 設計轉換和修改管理 ....................................................................................................................... 31.4 物理設計與加工數據的生成 ........................................................................................................... 31.5 高速 PCB 規劃設計環境.................................................................................................................. 32 Cadence 設計流程........................................................................................................................................... 33 啟動項目管理器.............................................................................................................................................. 4第二章 Cadence 安裝................................................................................................ 6第三章 CADENCE 庫管理..................................................................................... 153.1 中興EDA 庫管理系統...................................................................................................................... 153.2 CADENCE 庫結構............................................................................................................................ 173.2.1 原理圖（Concept HDL）庫結構：........................................................................................ 173.2.2 PCB 庫結構：............................................................................................................................. 173.2.3 仿真庫結構： ............................................................................................................................. 18第四章 公司的 PCB 設計規范............................................................................... 19第五章常用技巧和常見問題處理......................................................................... 19
上傳時間： 2013-10-31
上傳用戶：ligi201200
Abstract: A digital RF modulator, an integrated solution that satisfies stringent DOCSIS RF-performancerequirements, takes advantage of modern technologies like high-performance wideband digital-to-analogconversion and CMOS technology scaling. This application note describes the Concept and advantages ofa digital quadrature amplitude modulation (QAM) modulator that uses the direct-RF architecture to enablea cable access platform (CCAP) system.
上傳時間： 2013-10-20
上傳用戶：drink！
Recently a new technology for high voltage Power MOSFETshas been introduced – the CoolMOS™ . Based on thenew device Concept of charge compensation the RDS(on) areaproduct for e.g. 600V transistors has been reduced by afactor of 5. The devices show no bipolar current contributionlike the well known tail current observed during the turn-offphase of IGBTs. CoolMOS™ virtually combines the lowswitching losses of a MOSFET with the on-state losses of anIGBT.
標簽： COOLMOS
上傳時間： 2013-11-14
上傳用戶：zhyiroy
Construction Strategy of ESD Protection CircuitAbstract： The principles used to construct ESD protection on circuits and the basic Conceptions of ESD protection design are presented.Key words：ESD protection/On circuit, ESD design window, ESD current path1 引言靜電放電（ESD，Electrostatic Discharge）給電子器件環境會帶來破壞性的后果。它是造成集成電路失效的主要原因之一。隨著集成電路工藝不斷發展，互補金屬氧化物半導體（CMOS，Complementary Metal-Oxide Semiconductor）的特征尺寸不斷縮小，金屬氧化物半導體(MOS, Metal-Oxide Semiconductor)的柵氧厚度越來越薄，MOS 管能承受的電流和電壓也越來越小，因此要進一步優化電路的抗ESD 性能，需要從全芯片ESD 保護結構的設計來進行考慮。
標簽： Construction Strategy ESD of
上傳時間： 2013-11-09
上傳用戶：Aidane
高速數字系統設計下載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.
上傳時間： 2013-10-26
上傳用戶：縹緲
|Introduction Basic Concept Tips to layout Power circuit Type of Power circuit Basic Concept Maximum Current calculation Resistance of Copper ideal power supply & noise Capacitor & Inductor Power consumption Function of power circuit
上傳時間： 2014-01-04
上傳用戶：kao21
Abstract: Investment in smart meters and smart grid end equipment continues to grow worldwide as countriestry to make their electric delivery systems more efficient. However, as critical as the electric deliveryinfrastructure is, it is normally not secured and thus subject to attack. This article describes the Concept oflife-cycle security—the idea that embedded equipment in the smart grid must have security designed into theentire life of the product, even back to the contract manufacturer. We also talk about how life-cycle securityapplies to embedded equipment in the smart grid. Potential threats are discussed, as are potential solutionsto mitigate the risks posed by those threats.
上傳時間： 2014-12-24
上傳用戶：熊少鋒
光伏發電是未來新能源發電重要方向之一，而光伏變流器是光伏發電系統的核心。介紹一種基于微網理念的光伏變流器設計。以該變流器為核心的光伏發電系統可以看做一個小型的微網系統。該系統能根據外部電網情況，工作于并網模式和離網模式。介紹了該系統的各個組成部件的設計以及變流器主電路部分器件的選型。最后，由實驗樣機進行測試。試驗結果驗證了電路拓撲結構及控制方案的可行性，也說明了系統參數設計方法的正確性。 Abstract: Solar Photovoltaic generation is an important direction of new energy power generation in the future，while photovoltaic converter is the core of photovoltaic generation system. This paper deals with a study on photovoltaic inverter based on the Concept of microgrid. This paper describes a system whose core component is the photovoltaic inverter，can work on grid-connected mode or run independently according to the external situation. The paper simply describes the main components of the system. At last，the prototype was produced and tested. Test result has proved feasibility of circuit topology structure and controlling scheme and shown correctness of system parameters.Key words: PV inverter； microgrid； off-grid； storage battery
上傳時間： 2014-12-24
上傳用戶：Shaikh
