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利用單片機具有的智能程序控制的特點，設計了基于STC89C52單片機的&Quot;二極管特性測試器&Quot;，可對二極管一般特性進行快速測試。通過穩定線性電流源給二極管加載恒定電流，然后由高精度模數轉換器測試其壓降，以此為基礎可判斷二極管好壞、檢測二極管極性和測試二極管伏安特性等，避免了用萬用表測試只能測得極性而不知其特性這一缺點。可用于電子設計制作過程中對二極管進行快速測試，以確定被測二極管是否滿足電路的設計要求。 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.
上傳時間： 2013-11-13
上傳用戶：assef
摘要! 為提高單片機通訊的實時性&Quot; 采用了動態的內存管理方法&Quot; 并將其應用到AUTO2000DCS, 系統中&Quot; 獲得了滿意的效果 關鍵詞! 動態分區靜態分區最先適應法內存表
上傳時間： 2013-10-19
上傳用戶：yangqian
摘要C 根據單片機80C196KC和現場可編程系統器件PSD302 的特性! 設計了一種數制化電源 裝置! 提供了程序框圖! 并對其進行了諧波分析&Quot; 它是一種高性能的通用裝置! 可替代傳統的F96 逆 變電源&Quot; 關鍵詞’ 電力電子器件電源單片機現場可編程系統器件
上傳時間： 2013-10-20
上傳用戶：cc1015285075
摘要! 就如何使用單片機對旋轉增量編碼器鑒相進行了研究! 給出了常用的鑒相算法以及識 別&Quot;毛刺#的方法!并通過在!AVR單片機上編程驗證了所給出的鑒相方法$ 更多編碼器知識請訪問http://www.elecfans.com/zhuanti/20111111242149.html
上傳時間： 2013-11-16
上傳用戶：wojiaohs
摘要：文章介紹了單片機控制系統溫度“數字化”的概念，描述了溫度“數字化”與“數字處理”的—般方法的過程與系-e3Ui案，闡述了一種新穎溫度“數字化”的思路與方法并歸納了這種方法的主要特點。關鍵詞：溫度；數字化；數字處理
上傳時間： 2013-11-05
上傳用戶：lyy1234
拼音輸入法杳詢函數: unsigned char code * py_ime(unsigned char input_py_val[]); input_py_val為已輸入的拼音碼字符串頭指針， 反回值為中文的起始地址，當為0時，杳詢失敗 應用舉例： { unsigned char input_string[]={&Quot;bang&Quot;}; unsigned char chines_string[100]; sprintf(chines_string,&Quot;%s&Quot;,py_ime(input_string)); }
上傳時間： 2014-03-18
上傳用戶：gxy670166755
Emu51Form是一個軟仿真計時器，copy到keil\c51\bin下 project->option for target &Quot;target 1&Quot;->debug->dialog.dll->parameter改為-p51R -dEmu51Form即可在keil 7.0運行成功，因為使用的一些函數是在最新的AGSI文檔中獲得，所以大家試試在6.23下能不能用。
上傳時間： 2013-10-28
上傳用戶：15736969615
依靠液壓系統支撐的天文望遠鏡在正常工作過程中往往要求其油(液)壓保持在某一穩定值&Quot;
上傳時間： 2013-10-26
上傳用戶：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;
標簽： Base-Station Applications Single-Chip Transceiver
上傳時間： 2013-11-07
上傳用戶：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.
上傳時間： 2014-01-13
上傳用戶：竺羽翎2222
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