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jk
说明： 加载所有模块，可以在网上搜索，供下载者的需要，(Load all modules, you can search the Internet, the need for those who download)
- 2012-06-23 15:06:51下载
- 积分：1
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computer_networks
浙江大学 《网络技术》课程资料 对应教材《计算机网络》第4版(Zhejiang University " Network Technology" course materials)
- 2013-05-25 08:40:35下载
- 积分：1
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liaotianchengxu
VC++编写的聊天程序。可在局域网内进行聊天。界面清晰(VC++ to prepare the chat program. Can be carried out in the local area network chat. Clear interface)
- 2009-06-14 10:28:05下载
- 积分：1
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ProjExtend
中频感应加热以其加热效率高、速度快，可控性好及易于实现机械化、自动化等优点，已在熔炼、铸造、弯管、热锻、焊接和表面热处理等行业得到广泛的应用。
本设计根据设计任务进行了方案设计，设计了相应的硬件电路，研制了20KW中频感应加热电源。
本设计中感应加热电源采用IGBT作为开关器件，可工作在10 Hz～10 kHz频段。它由整流器、滤波器、和逆变器组成。整流器采用不可控三相全桥式整流电路。滤波器采用两个电解电容和一个电感组成Ⅱ型滤波器滤波和无源功率因数校正。逆变器主要由PWM控制器SG3525A控制四个IGBT的开通和关断，实现DC-AC的转换。
设计中采用的芯片主要是PWM控制器SG3525A和光耦合驱动电路HCPL-316J。设计过程中程充分利用了SG3525A的控制性能，具有宽的可调工作频率，死区时间可调，具有输入欠电压锁定功能和双路输出电流。由于HCPL-316J具有快的开关速度（500ns），光隔离，故障状态反馈，可配置自动复位、自动关闭等功能，所以选择其作为IGBT的驱动。
对原理样机的调试结果表明，所完成的设计实现了设计任务规定的基本功能。此外，为了满足不同器件对功率需要的要求，设计了功率可调。这部分超出了设计任务书规定的任务。(induction heating with high heating efficiency, speed and good controllability and easy to mechanization. the advantages of automation, in melting, casting, bending, forging, welding and surface heat treatment and other industries have been widely employed. According to the design tasks for the design of the program design, design corresponding to the hardware circuit, Development of 20 KW induction heating power. The design of induction heating power IGBT used as a switching device, which can work in 10 Hz- 10 kHz frequency band. It consists of rectifier, filter, and the inverter components. Controlled Rectifier not use the entire three-phase bridge rectifier circuit. 2 filter used an electrolytic capacitor and inductor components II-type filter and passive PFC. Inverter mainly by the PW)
- 2007-04-19 11:31:35下载
- 积分：1
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CopyHunter
文件拷贝猎手，能进行断点续传功能，方便局域网内部的共享文件拷贝！(File copy hunter, capable of HTTP functionality, easy to share the internal LAN file copy!)
- 2011-08-22 00:19:30下载
- 积分：1
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csexamsys
考试程序”客户端/服务器模式”，初学网络编程的人看了一定有所收获(C/S Program)
- 2009-10-27 13:57:55下载
- 积分：1
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WSAEventSelect_Test_IO
关于WSAEventselect模型的使用，这个模型和WSAAsyncselect很相像，但是使用方法还是要注意(About WSAEventselect model used is very similar to the model and WSAAsyncselect, but still have to pay attention to use)
- 2010-11-08 17:05:04下载
- 积分：1
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UDP_chat
利用udp包实现聊天。利用udp包实现聊天。(use udp packet to realize chat over net.)
- 2010-09-24 23:56:31下载
- 积分：1
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ad_wall
广告墙纸.本程序包含一个发布端(把端纸发布到sql server中),客户端会自动读取墙纸,并设置为本机墙纸,还可设置图标排列方式.
目前做为机房的文告发布使用.(Advertising wallpaper. This program includes a release end (the end of the paper posted to the sql server), the client will automatically read the wallpaper, and set native wallpaper, icons arrangement can be set now to use as a room of the statement released .)
- 2011-11-12 09:18:41下载
- 积分：1
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visualc++WANGLUOBIANCHENG
visual c++ 网络通信编程实用案例精选(visual c++ network communications programming practical cases Featured)
- 2007-09-01 00:08:19下载
- 积分：1
