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QQ
说明： 模仿qq的一个小程序，值得VC++初学者学习(Qq imitate a small program, it is worth learning VC++ beginners)
- 2011-12-08 17:03:33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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live555_vs2008_vs2015(live.2014.07.25)
live555 rtsp build in vs2008 and vs2015.
also make testRTSPClient execute project
- 2020-06-19 19:00:01下载
- 积分：1
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network_report
计算机网络的实验报告和源码,包含聊天软件的源玛(An experimental computer network reports and source code, including chat software source ma)
- 2009-01-03 16:51:44下载
- 积分：1
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chap3
用socket编程实现点对点通信，TCP客户端程序，TCP服务器程序，以及UDP点对点聊天通信。(Point to point communication, TCP client, TCP server, and UDP peer chat communication socket programming.)
- 2020-07-04 14:20:01下载
- 积分：1
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socket
socket编程实现服务端与客户端互发消息(exchange message between server and client)
- 2011-04-29 01:32:40下载
- 积分：1
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CHAP40
There is no souse code. Just trash
- 2015-06-23 15:27:47下载
- 积分：1
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Net_Chat_Client
一个网络socket 聊天程序的客户端.可用于局域网和(A network socket client chat program)
- 2009-06-28 07:49:25下载
- 积分：1
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NetWork
这个是关于网络工作室的源代码,主要是用于网络编程的初级参考,希望能给刚入网络编程的朋友提供帮助(This is a studio on the network)
- 2007-09-03 18:27:40下载
- 积分：1
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aonitor-domain-number
材料力学课程的作业,用于惯性矩的计算,但也是我平时学VB的积累,(The homework in the mechanics of materials course is used for the calculation of moment of inertia, but it is also the accumulation of VB in my usual study.)
- 2018-12-05 05:07:55下载
- 积分：1
