Desktop

针对电力电子领域的需求，采用自然采样法设计了一个全数字三相SPWM信号产生系统IP软核．通过数字频率合成技术实现了对电源频率的辅确控制．使电源频率精度达到16位．其中。通过调节控制参数．分别实现了电源频率与载波频率的7级、8级控制．最后。搭建了基于FPGA的测试系统．验证了系统功能的正确性．(According to the requirement of power electronics, the natural sampling method for the design of a full digital three-phase SPWM signal generation system. The power frequency of IP core is the auxiliary control is implemented through digital frequency synthesis technology. The power frequency accuracy of 16. By adjusting the control parameters, 7 and 8 levels of power frequency and carrier frequency are realized respectively. Finally, the control of the power frequency and carrier frequency is realized. A test system based on FPGA is built, which verifies the correctness of the system function)

说明：  MPPT控制器的全称“最大功率点跟踪”（Maximum Power Point Tracking）太阳能控制器，是传统太阳能充放电控制器的升级换代产品。所谓最大功率点跟踪，即是指控制器能够实时侦测太阳能板的发电电压，并追踪最高电压电流值(VI)，使系统以最高的效率对蓄电池充电。下面我们用一种机械模拟对比的方式来向大家解释MPPT太阳能控制器的基本原理。(The full name of MPPT controller is "Maximum Power Point Tracking" solar controller, which is an upgrade product of the traditional solar charge and discharge controller. The so-called maximum power point tracking (MPPT) means that the controller can detect the generation voltage of solar panels in real time, and track the maximum voltage and current (VI), so that the system can charge the battery with the highest efficiency. Next, we will explain the basic principle of MPPT solar controller in a way of mechanical simulation and comparison.)

10种软件滤波方法,10种软件滤波方法.(10 filter way)

实现光谱数据的预处理，去除背景和基线漂移，具有非常好的效果，已经试验成功。(To achieve the preprocessing of spectral data, removing background and baseline drifts with very good results, and it has been successfully tested.)

经常使用Protel99se的同学们一定都觉得它的鼠标功能不尽不意吧，这里给大家提供一个对Protel99se鼠标功能的增强工具。可以支持用鼠标对图象进行放大，移动，旋转等功能。在此向作者表示感谢-often use to the students who will feel the mouse function not unwittingly bar, Here we provide to the one pair of Protel99se function in the mouse tool. Can support the use of the mouse on the image to enlarge it, moving, rotating, and other functions. Like to thank the authors said. !

《集体智慧编程》这本书的源码，里面包含数据挖掘方面的一些算法，包括遗传算法，费舍尔算法，决策树等(" The collective wisdom of programming source code of this book, which contains the data mining aspects of algorithms, including genetic algorithms, Fisher algorithm, decision tree)

一个漂亮的带优先级的简单计算器 A nice simple calculator with priority(A beautiful take priority of simple calculator A nice simple calculator with priority)

说明：  远程桌面源码可以直接运行，简单实用，远程连接速度快(Remote desktop source code can be run directly,Simple and practical, the remote connection speed is fast)

为需要安装的程序产生程序序列号--Generate serials for programs which need installation.

化学方程配平软件-chemical equation balancing software