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2009National-contest
2009年全国大学生电子设计大赛A题：光伏并网发电模拟装置 ，实现对光伏并网发电模拟装置的原理和结构进行参数的计算与分析，设计并制作了一个设计并制作一个光伏并网发电模拟装置。本系统以ARM7 LM1138为处理核心能实现了用直流稳压电源和电阻模拟光伏电池，经过SPWM和H桥的DC/AC转换，滤波整流成正弦波后再经变压器逆变从而实现模拟并网，系统具有频率、相位采集跟踪功能和电压电流采集功能。(2009 National Undergraduate Electronic Design Contest A question: grid-connected PV simulator achieve grid-connected PV simulation device parameters of the principles and structure calculation and analysis, design and production of a design and production of a photovoltaic grid simulator. The system ARM7 LM1138 as the processing core can be achieved using DC power supply and resistor simulation photovoltaic cells, after SPWM and the H bridge DC/AC conversion, filtering through the transformer and then rectified into a sine wave inverter in order to achieve simulation of grid , the system has a frequency, phase acquisition and tracking function of voltage and current collection.)
- 2010-02-22 10:17:29下载
- 积分：1
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5957949
低密度奇偶校验码的VHDL程序,用于LDPC码的硬件实现(VHDL program for low density parity check codes, used in hardware implementation of LDPC codes)
- 2019-04-03 01:28:56下载
- 积分：1
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asp学校投票系统
评选投票系统是一套基于WEB的网站程序，它用于举办网上评选活动，它适用于人物评选，摄影作品，书法绘画作品的网上评选投票活动。
- 2022-03-21 15:21:38下载
- 积分：1
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giflib读取gif文件VS工程
开源giflib库，可读取打开gif文件
- 2022-09-01 12:50:03下载
- 积分：1
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This is a network of scanning procedures, short and pithy
这个是一个关于网络扫描的程序,短小精悍-This is a network of scanning procedures, short and pithy
- 2022-08-07 15:37:32下载
- 积分：1
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chart
说明： 点对点的聊天工具，公司不让QQ,SKYPE，就动手写了个超小巧的聊天工具(Peer-to-peer chat tool company from QQ, SKYPE, on hand to write a super-compact chat tools)
- 2008-10-06 21:39:06下载
- 积分：1
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znion-loop-ready
简单的菜单界面程序以及源码,还包括一个黄色笑脸的图标文件()
- 2018-06-22 07:44:18下载
- 积分：1
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sz
说明： 5、 打印如下方阵（任选一题）。
(1) 螺旋方阵：
1 2 3 4
12 13 14 5
11 16 15 6
10 9 8 7(it is a C++ file)
- 2011-04-15 21:32:44下载
- 积分：1
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避障
寻迹，直流电机驱动，pwm调节，小车程序(Tracing, dc motor drive, PWM adjustment, car program)
- 2020-06-18 19:20:02下载
- 积分：1
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hecheng
设关系A是从集合X={1，2，….，n}到集合Y={1，2，…..，m}的二元关系，而关系B是从集合Y到集合Z={1，2，….，p}的二元关系，求A与B的合成关系C。(A relationship is established from the set X = (1,2, ...., N) to the collection Y = (1,2, ... .., m) of binary relations, the relationship B is from a collection of Y to the set Z = ( 1,2, ...., p) of the binary relation, find the relationship between A and B, synthesis of C.)
- 2009-12-23 13:13:00下载
- 积分：1
