LAB9

这是一个考勤管理系统的设计方案.. 里面含:流程图,ER图,源代码. 欢迎大家来(This is an appraisal management system design .. inside containing : flowchart, ER map, the source code. Welcome everyone to see )

altera原厂多层开发板 allegro 原理图+PCB(altera original multi-layer development board allegro schematic+ PCB)

相册网站系统的构建，包括各个网页的设计与后台的构建。(Album site to build the system, including all web design and build background.)

在电网电压频率波动或者三相不平衡的情况下,硬件锁相很难准确检测到基波正序的相位。在结合PWM整流器空间矢量解耦控制算法的基础上,将软件锁相环技术应用在PWM整流器控制系统中,并用仿真和实验验证了该方案的可行性。实验结果表明,该方案解决了电网电压频率波动及三相不平衡时的相位同步等问题,并在工程上具有一定参考价值。(Frequency or voltage fluctuations in three-phase unbalanced case, the hardware lock is difficult to accurately detect the fundamental positive sequence phase. In the space vector PWM rectifier with decoupling control algorithm based on the software used in the PWM rectifier PLL control system, and use simulation and experimental verification of the feasibility. Experimental results show that the solutions to address the voltage and frequency fluctuations of the phase unbalanced three-phase synchronization issues, and the project has a certain reference value.)

in security systems keeloq encoding used verity.microchip keeloq hoping system.

本文件中包含大量与无线传感器网络定位有关的论文，大多为IEEE最近两年的论文，希望对大家有帮助(This document contains a large number of wireless sensor networks with location-related papers, most of the last two years for the IEEE papers, we want to help)

典型结艺产品三维结构快速设计方法Typical three-dimensional structure of product rapid knot Arts Design(Typical three-dimensional structure of product rapid knot Arts Design)

数字太阳能逆变器方案，全套设计资料。含祥细源码及硬件原理。(Digital solar inverter solutions, complete design information. Xiangxi containing source code and hardware schematics.)

本论文结合“太阳能电解水制氢系统”，通过建立系统相关的数学模型和运用MATAB软件对系统进行理论分析研究 (This paper combines the "Solar water electrolysis hydrogen production system," related to the system through the establishment of a mathematical model of the system software and application MATAB theoretical analysis)

说明：  有源电力滤波器中谐波电流检测的研究，一篇学术论文，还是有比较大的参考意义。(Research on harmonic current detection of active power filter, an academic paper, or a larger reference value.)