the practice of proteus and avr
標(biāo)簽： practice proteus the and
上傳時(shí)間： 2013-09-29
上傳用戶：tom_man2008
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(huán)境會(huì)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(fā)展，互補(bǔ)金屬氧化物半導(dǎo)體（CMOS，Complementary Metal-Oxide Semiconductor）的特征尺寸不斷縮小，金屬氧化物半導(dǎo)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(jìn)一步優(yōu)化電路的抗ESD 性能，需要從全芯片ESD 保護(hù)結(jié)構(gòu)的設(shè)計(jì)來進(jìn)行考慮。
標(biāo)簽： Construction Strategy ESD of
上傳時(shí)間： 2013-11-09
上傳用戶：Aidane
模擬集成電路的設(shè)計(jì)與其說是一門技術(shù)，還不如說是一門藝術(shù)。它比數(shù)字集成電路設(shè)計(jì)需要更嚴(yán)格的分析和更豐富的直覺。嚴(yán)謹(jǐn)堅(jiān)實(shí)的理論無疑是嚴(yán)格分析能力的基石，而設(shè)計(jì)者的實(shí)踐經(jīng)驗(yàn)無疑是誕生豐富直覺的源泉。這也正足初學(xué)者對(duì)學(xué)習(xí)模擬集成電路設(shè)計(jì)感到困惑并難以駕馭的根本原因。.美國加州大學(xué)洛杉機(jī)分校(UCLA)Razavi教授憑借著他在美國多所著名大學(xué)執(zhí)教多年的豐富教學(xué)經(jīng)驗(yàn)和在世界知名頂級(jí)公司(AT&T，Bell Lab，HP)卓著的研究經(jīng)歷為我們提供了這本優(yōu)秀的教材。本書自2000午出版以來得到了國內(nèi)外讀者的好評(píng)和青睞，被許多國際知名大學(xué)選為教科書。同時(shí)，由于原著者在世界知名頂級(jí)公司的豐富研究經(jīng)歷，使本書也非常適合作為CMOS模擬集成電路設(shè)計(jì)或相關(guān)領(lǐng)域的研究人員和工程技術(shù)人員的參考書。... 本書介紹模擬CMOS集成電路的分析與設(shè)計(jì)。從直觀和嚴(yán)密的角度闡述了各種模擬電路的基本原理和概念，同時(shí)還闡述了在SOC中模擬電路設(shè)計(jì)遇到的新問題及電路技術(shù)的新發(fā)展。本書由淺入深，理論與實(shí)際結(jié)合，提供了大量現(xiàn)代工業(yè)中的設(shè)計(jì)實(shí)例。全書共18章。前10章介紹各種基本模塊和運(yùn)放及其頻率響應(yīng)和噪聲。第11章至第13章介紹帶隙基準(zhǔn)、開關(guān)電容電路以及電路的非線性和失配的影響，第14、15章介紹振蕩器和鎖相環(huán)。第16章至18章介紹MOS器件的高階效應(yīng)及其模型、CMOS制造工藝和混合信號(hào)電路的版圖與封裝。 1 Introduction to Analog Design 2 Basic MOS Device Physics 3 Single-Stage Amplifiers 4 Differential Amplifiers 5 Passive and Active Current Mirrors 6 Frequency Response of Amplifiers 7 Noise 8 Feedback 9 Operational Amplifiers 10 Stability and Frequency Compensation 11 Bandgap References 12 Introduction to Switched-Capacitor Circuits 13 Nonlinearity and Mismatch 14 Oscillators 15 Phase-Locked Loops 16 Short-Channel Effects and Device Models 17 CMOS Processing Technology 18 Layout and Packaging
標(biāo)簽： analog design cmos of
上傳時(shí)間： 2014-12-23
上傳用戶：杜瑩12345
2400W-SPWM驅(qū)動(dòng)電路，Backup of 修改2400W-SPWM驅(qū)動(dòng)電路。
標(biāo)簽： Backup W-SPWM 2400 of
上傳時(shí)間： 2013-11-14
上傳用戶：dddddd
The outputs of the PCA9518 are immediately available as soon as there is a voltage present on thesupply >~1V and behave as described above. The power-on reset of the PCA9518A keeps the outputsturned off during power-up and maintains the high impedance of the outputs throughout the power-upcycle. There is an additional built-in delay after power-up that allows the analog circuits to stabilize beforethe part is activated.
標(biāo)簽： Replacement 9518 NXP PCA
上傳時(shí)間： 2013-10-26
上傳用戶：13817753084
Although Stellaris microcontrollers have generous internal SRAM capabilities, certain applicationsmay have data storage requirements that exceed the 8 KB limit of the Stellaris LM3S8xx seriesdevices. Since microcontrollers do not have an external parallel data-bus, serial memory optionsmust be considered. Until recently, the ubiquitous serial EEPROM/flash device was the only serialmemory solution. The major limitations of EEPROM and flash technology are slow write speed, slowerase times, and limited write/erase endurance.Recently, serial SRAM devices have become available as a solution for high-speed dataapplications. The N256S08xxHDA series of devices, from AMI Semiconductor, offer 32 K x 8 bits oflow-power data storage, a fast Serial Peripheral Interface (SPI) serial bus, and unlimited write cycles.The parts are available in 8-pin SOIC and compact TSSOP packages.
標(biāo)簽： Adding Serial SRAM 32
上傳時(shí)間： 2013-10-14
上傳用戶：cxl274287265
提出了一個(gè)由AT89C52單片機(jī)控制步進(jìn)電機(jī)的實(shí)例。可以通過鍵盤輸入相關(guān)數(shù)據(jù), 并根據(jù)需要, 實(shí)時(shí)對(duì)步進(jìn)電機(jī)工作方式進(jìn)行設(shè)置, 具有實(shí)時(shí)性和交互性的特點(diǎn)。該系統(tǒng)可應(yīng)用于步進(jìn)電機(jī)控制的大多數(shù)場合。實(shí)踐表明, 系統(tǒng)性能優(yōu)于傳統(tǒng)的步進(jìn)電機(jī)控制器。關(guān)鍵詞: 單片機(jī); 步進(jìn)電動(dòng)機(jī); 直流固態(tài)繼電器; 實(shí)時(shí)控制Con trol System of Stepp ingMotor Ba sed on AT89C52 ChipM icrocomputerMENGWu2sheng, L ILiang (College of Automatization, Northwestern Polytechnical Unversity, Xipan 710072, China)ABSTRACT: A stepp ing motor control system based on AT89C52 chip microcomputer was described.The data can be inputwith keyboard, and stepp ingmotorwas controlled by these data. According to the demand, users can set the workingmodel of stepp ingmotor in real2time. This system can be widely used in stepp ing motor controlling. The p ractice showed that the performance of this system outdid the tradi tional stepp ing motor controller.KEY WORDS: Chip microcomputer; Stepp ingmotor; DCSSR; Real2time control
標(biāo)簽： Control System ingMot Stepp
上傳時(shí)間： 2013-11-19
上傳用戶：leesuper
a set of cross-platform tools that is useful for programming the GBA written in Java.
標(biāo)簽： cross-platform programming written useful
上傳時(shí)間： 2015-01-06
上傳用戶：yd19890720
CGAL is a collaborative effort of several sites in Europe and Israel. The goal is to make the most important of the solutions and methods developed in computational geometry available to users in industry and academia in a C++ library. The goal is to provide easy access to useful, reliable geometric algorithms
標(biāo)簽： collaborative several Europe Israel
上傳時(shí)間： 2015-01-09
上傳用戶：refent
A Library of Efficient Data Types and Algorithms,封裝了常用的ADT及其相關(guān)算法的軟件包
標(biāo)簽： Algorithms Efficient Library Types
上傳時(shí)間： 2014-01-10
上傳用戶：fhzm5658
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