源码简介客户关系管理系统源码 一个功能简单Asp.net的客户关系管理系统 主要有：客户资料管理 基础配置管理 员工管理 客户服务管理四大模块 客...

单端反激式开关电源具有结构简单、输入输出电气隔离、电压升／降范围宽、易于多路输出、可靠性高、造价低等优点，广泛应用于小功率场合。然而，由于漏感影响，反激变换器功率开关管关断时将引起电压尖峰，必须用钳位电路加以抑制。由于RCD钳位电路比有源钳位电路更简洁且易实现，因而在小功率变换场合RCD钳位更有实用价值。 -Single-ended flyback switching power supply with a simple structure, input and output electrical isolation, voltage up/down range, easy to multi-output, high reliability and low cost, widely used in low-power occasions. However, due to leakage effects flyback converter power switch off when the voltage spike caused by the need to be inhibited by clamping circuit. RCD clamp circuit as a result of active-clamp circuit than the more concise and easy to realize, and in low-power transform RCD clamp occasions more practical value.

用于大学生教学的管理信息系统的课程设计模版-For college teaching management information systems curriculum design template

广西证券电子商务系统方案建议书 V1.08-Guangxi Securities E-commerce System proposals V1.08

一个基于OGRE图形引擎的高度面向对象的游戏结构-an OGRE graphics engine based on the height of the object-oriented structure of the game

基础知识；利用自己所学的知识设计一个可以实现匿名的网络系统，通过此系统发邮件可以不让对方知道你的IP地址，从而保证了系统的安全性！-basic knowledge; Use their knowledge has been a design can achieve anonymous network system through the mail system does not allow the other side to know your IP address, thereby ensuring the safety of the system!

能够进行矩阵运算，可以自己下载添加上说明就可以达成课程设计报告额-To carry out matrix operations, you can download the add on your description of the report of the amount of curriculum design can be reached

　介绍了一种运用DSP (数字信号处理器)控制的基于以太网传输的低成本高音质语音 监控系统,该系统主要由语音采集模块和语音传输模块组成。-Introduced the use of a DSP (digital signal processor)-controlled, low-cost Ethernet-based high-quality transmission of voice control system, the system mainly by the voice acquisition module and voice transmission module.

programa en C muy sencillo en el que mediante un sensor de luz encendemos una serie de diodos LED en función de la intensidad de luz que capta el sensor

s3c6410的pcb板图，pdf格式，作为布线参考用-s3c6410 map of pcb board, pdf format, as a reference wiring

本文介绍了一种控制普通阀门的阀门控制器的设计方案，该阀门控制器带有工业现场总线PROFIBUS－DP 的接口，可以实现阀门的远程控制和网络控制。本文主要的着力点为介绍利用PROFIBUS－DP 专用芯片SPC3 开发PROFIBUS－DP 设备中需要注意的一些问题，包括硬件接口设计，有关PROFIBUS－DP 规范标准的一些设计要点，以及利用PROFIBUS－DP 诊断功能的方法。本文对设计其它Profibus DP从站节点有很好的参考价值!-This paper presents a general valve control valve controller design program The valve controller with industrial PROFIBUS-DP interface. The valve can be achieved remote control and network control. This paper mainly focus on the use of PROFIBUS-DP SPC3 ASIC development PROFIB U.S.-DP equipment necessary to pay attention to a number of issues, including the hardware interface design, The PROFIBUS-DP standards in a number of design features, and the use PROFIBUS-DP diagnostic function method. In this paper, the design of other Profibus DP slave nodes are of value!