·【原 书 名】 High-Speed Digital Design:A Handbook of Black Magic 【原出版社】 Addison Wesley/Pearson 【作 者】[美]Howard Johnson,Martin Graham [同作者作品] [作译者介绍] 【译 者】 沈立[同译者作品] 朱来文 陈宏伟 等 【丛 书
标签： 高速数字
上传时间： 2013-07-03
上传用户：GeekyGeek
·【英文题名】 Research of Speed Regulate System of Three Phase BLDCM Based on DSP 【作者中文名】 刘桂芬; 【导师】 孟庆春; 【学位授予单位】 辽宁工程技术大学; 【学科专业名称】 控制理论与控制工程 【学位年度】 2007 【论文级别】 硕士 【网络出版投稿人】 辽宁工程技术大学 【网络出版投稿时间】 2006-01-02 【
上传时间： 2013-06-19
上传用户：leileiq
LPC178* 177*用户手册 LPC178x/7x 32-bit ARM Cortex-M3 microcontroller; up to 512 kB flash and 96 kB SRAM; USB Device/Host/OTG; Ethernet; LCD; EMC Rev. 3 — 27 December 2011 Objective data sheet
上传时间： 2013-04-24
上传用户：胡佳明胡佳明
protel 99se 使用技巧以及常见问题解决方法：里面有一些protel 99se 特别技巧，还有我们经常遇到的一些问题！如何使一条走线至两个不同位置零件的距离相同? 您可先在Design/Rule/High Speed/Matched Net Lengths的规则中来新增规则设定,最后再用Tools/EqualizeNet Lengths 来等长化即可。 Q02、在SCHLIB中造一零件其PIN的属性，如何决定是Passive, Input, I/O, Hi- Z,Power,…..？在HELP中能找到说明吗？市面有关 SIM？PLD？的书吗？或贵公司有讲义？ 你可在零件库自制零件时点选零件Pin脚,并在Electrical Type里,可以自行设定PIN的 属性,您可参考台科大的Protel sch 99se 里面有介绍关于SIM的内容。 Q03、请问各位业界前辈,如何能顺利读取pcad8.6版的线路图,烦请告知 Protel 99SE只能读取P-CAD 2000的ASCII档案格式,所以你必须先将P-CAD8.6版的格式转为P-CAD 2000的档案格式,才能让Protel读取。 Q04、请问我该如何标示线径大小的那个平方呢 你可以将格点大小设小,还有将字形大小缩小,再放置数字的平方位置即可。 Q05、请问我一次如何更改所有组件的字型 您可以点选其中一个组件字型,再用Global的方法就可以达成你的要求。
上传时间： 2013-10-22
上传用户：yd19890720
Q01、如何使一条走线至两个不同位置零件的距离相同? 您可先在Design/Rule/High Speed/Matched Net Lengths的规则中来新增规则设定,最 后再用Tools/EqualizeNet Lengths 来等长化即可。 Q02、在SCHLIB中造一零件其PIN的属性，如何决定是Passive, Input, I/O, Hi- Z,Power,…..？在HELP中能找到说明吗？市面有关 SIM？PLD？的书吗？或贵公司有讲义？ 你可在零件库自制零件时点选零件Pin脚,并在Electrical Type里,可以自行设定PIN的 属性,您可参考台科大的Protel sch 99se 里 面有介绍关于SIM的内容。 Q03、请问各位业界前辈,如何能顺利读取pcad8.6版的线路图,烦请告知 Protel 99SE只能读取P-CAD 2000的ASCII档案格式,所以你必须先将P-CAD8.6版的格式 转为P-CAD 2000的档案格式,才能让Protel读取。
标签： Protel
上传时间： 2013-11-22
上传用户：daxigua
Methods for designing a maintenance simulation training system for certain kind of radio are introduced. Fault modeling method is used to establish the fault database. The system sets up some typical failures， follow the prompts trainers can locate the fault source and confirm the type to accomplish corresponding fault maintenance training. A training evaluation means is given to examining and evaluating the training performance. The system intuitively and vividly shows the fault maintenance process， it can not only be used in teaching， but also in daily maintenance training to efficiently improve the maintenance operation level. Graphical programming language LabVIEW is used to develop the system platform.
上传时间： 2013-11-19
上传用户：3294322651
Industrial systems demand semiconductors that are precise, flexibleand reliable. Linear Technology offers a broad line of high performanceanalog ICs that simplify system design with rugged devices featuringparameters fully guaranteed over the -40°C to 85°C temperature range.We back this up with knowledgeable applications support, long productlife cycles and superior on-time delivery.
上传时间： 2013-11-02
上传用户：xiaodu1124
The MAX17600–MAX17605 devices are high-speedMOSFET drivers capable of sinking /sourcing 4A peakcurrents. The devices have various inverting and noninvertingpart options that provide greater flexibility incontrolling the MOSFET. The devices have internal logiccircuitry that prevents shoot-through during output-statchanges. The logic inputs are protected against voltagespikes up to +14V, regardless of VDD voltage. Propagationdelay time is minimized and matched between the dualchannels. The devices have very fast switching time,combined with short propagation delays (12ns typ),making them ideal for high-frequency circuits. Thedevices operate from a +4V to +14V single powersupply and typically consume 1mA of supply current.The MAX17600/MAX17601 have standard TTLinput logic levels, while the MAX17603 /MAX17604/MAX17605 have CMOS-like high-noise margin (HNM)input logic levels. The MAX17600/MAX17603 are dualinverting input drivers, the MAX17601/MAX17604 aredual noninverting input drivers, and the MAX17602 /MAX17605 devices have one noninverting and oneinverting input. These devices are provided with enablepins (ENA, ENB) for better control of driver operation.
上传时间： 2013-12-20
上传用户：zhangxin
Abstract: This application note describes how to improve the speed of modular exponentiation by more than 50% whenusing MAXQ® microcontrollers that have a modular arithmetic accelerator (MAA).
上传时间： 2013-11-17
上传用户：s363994250
Abstract: This application note presents an overview of the operational characteristics of accurate I²C real-time clocks (RTCs),including the DS3231, DS3231M, and DS3232. It focuses on general application guidelines that facilitate use of device resources forpower management, I²C communication circuit configurations, and I²C characteristics relative to device power-up sequences andinitializations. Additional discussions on decoupling are provided to support developing strategies for mitigating power-supply pushingof device frequency.
上传时间： 2013-11-23
上传用户：WMC_geophy
