利用单片机具有的智能程序控制的特点，设计了基于STC89C52单片机的&Quot;二极管特性测试器&Quot;，可对二极管一般特性进行快速测试。通过稳定线性电流源给二极管加载恒定电流，然后由高精度模数转换器测试其压降，以此为基础可判断二极管好坏、检测二极管极性和测试二极管伏安特性等，避免了用万用表测试只能测得极性而不知其特性这一缺点。可用于电子设计制作过程中对二极管进行快速测试，以确定被测二极管是否满足电路的设计要求。 Abstract: By making good use of the intelligent control function of the Micro Controller Unit (MCU)， the diode trait tester was designed based on the STC89C52，which could be used to test the trait of a diode rapidly. By loading constant current to diode through the stable linear current source， and measuring the voltage drop of the diode by high-precision analogue-to-digital converter (ADC)， it can judge whether the diode is good or not， distinguish the polarity of the diode， and test the trait that the diode， which can avoid the fault of using a multimeter can only measure the polarity but not the trait. This device can be used to test the trait of a diode quickly，and to make sure that whether a diode can be used in the electronic design or not.
上传时间： 2013-11-13
上传用户：assef
摘要! 为提高单片机通讯的实时性&Quot; 采用了动态的内存管理方法&Quot; 并将其应用到AUTO2000DCS, 系统中&Quot; 获得了满意的效果 关键词! 动态分区静态分区最先适应法内存表
上传时间： 2013-10-19
上传用户：yangqian
摘要C 根据单片机80C196KC和现场可编程系统器件PSD302 的特性! 设计了一种数制化电源 装置! 提供了程序框图! 并对其进行了谐波分析&Quot; 它是一种高性能的通用装置! 可替代传统的F96 逆 变电源&Quot; 关键词’ 电力电子器件电源单片机现场可编程系统器件
上传时间： 2013-10-20
上传用户：cc1015285075
摘要! 就如何使用单片机对旋转增量编码器鉴相进行了研究! 给出了常用的鉴相算法以及识 别&Quot;毛刺#的方法!并通过在!AVR单片机上编程验证了所给出的鉴相方法$ 更多编码器知识请访问http://www.elecfans.com/zhuanti/20111111242149.html
上传时间： 2013-11-16
上传用户：wojiaohs
摘要：文章介绍了单片机控制系统温度“数字化”的概念，描述了温度“数字化”与“数字处理”的—般方法的过程与系-e3Ui案，阐述了一种新颖温度“数字化”的思路与方法并归纳了这种方法的主要特点。关键词：温度；数字化；数字处理
上传时间： 2013-11-05
上传用户：lyy1234
拼音输入法杳询函数: unsigned char code * py_ime(unsigned char input_py_val[]); input_py_val为已输入的拼音码字符串头指针， 反回值为中文的起始地址，当为0时，杳询失败 应用举例： { unsigned char input_string[]={&Quot;bang&Quot;}; unsigned char chines_string[100]; sprintf(chines_string,&Quot;%s&Quot;,py_ime(input_string)); }
上传时间： 2014-03-18
上传用户：gxy670166755
Emu51Form是一个软仿真计时器，copy到keil\c51\bin下 project->option for target &Quot;target 1&Quot;->debug->dialog.dll->parameter改为-p51R -dEmu51Form即可在keil 7.0运行成功，因为使用的一些函数是在最新的AGSI文档中获得，所以大家试试在6.23下能不能用。
上传时间： 2013-10-28
上传用户：15736969615
依靠液压系统支撑的天文望远镜在正常工作过程中往往要求其油(液)压保持在某一稳定值&Quot;
上传时间： 2013-10-26
上传用户：dudu1210004
Abstract: This application note discusses the development and deployment of 3G cellular femtocell base stations. The technicalchallenges for last-mile residential connectivity and adding system capacity in dense urban environments are discussed, with 3Gfemtocell base stations as a cost-effective solution. Maxim's 3GPP TS25.104-compliant transceiver solution is presented along withcomplete radio reference designs such as RD2550. For more information on the RD2550, see reference design 5364, &Quot;FemtocellRadio Reference Designs Using the MAX2550–MAX2553 Transceivers.&Quot;
标签： Base-Station Applications Single-Chip Transceiver
上传时间： 2013-11-07
上传用户：songrui
Xilinx is disclosing this user guide, manual, release note, and/or specification (the &Quot;Documentation&Quot;) to you solely for use in the developmentof designs to operate with Xilinx hardware devices. You may not reproduce, distribute, republish, download, display, post, or transmit theDocumentation in any form or by any means including, but not limited to, electronic, mechanical, photocopying, recording, or otherwise,without the prior written consent of Xilinx. Xilinx expressly disclaims any liability arising out of your use of the Documentation. Xilinx reservesthe right, at its sole discretion, to change the Documentation without notice at any time. Xilinx assumes no obligation to correct any errorscontained in the Documentation, or to advise you of any corrections or updates. Xilinx expressly disclaims any liability in connection withtechnical support or assistance that may be provided to you in connection with the Information.
上传时间： 2014-01-13
上传用户：竺羽翎2222
