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network
计算机网络讲义谢西仁的,非常出名第五版计算机网络讲义谢西仁的,非常出名第五版(West Yan Xie computer network notes, very well-known computer network notes the fifth edition of the West Yan Xie, very famous Fifth Edition)
- 2010-05-27 17:53:22下载
- 积分:1
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nzwev612
常用对象的用法,很不错的易语言源码,适合易语言爱好者使用,(Common object usage, very good easy language source code, suitable for easy language lovers use,)
- 2018-08-11 19:05:15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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Hacking-the-whole-solution-process
讲述黑客基础知识。
1.网络以及相关知识
2.入侵概念和基础知识
3.入侵基本过程和使用工具(Basic knowledge about the hacking.
1 Network and Knowledge
2 invasion concepts and basics
3. Invasion process and the use of basic tools)
- 2014-01-11 16:01:27下载
- 积分:1
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路由追踪软件 路由追踪软件 路由追踪软件 路由追踪软件
路由追踪软件 路由追踪软件 路由追踪软件 路由追踪软件-Router
- 2022-02-12 18:23:30下载
- 积分:1
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NetWork_Xiexiren
计算机网络课件。。。。。。。谢西人的课件。。。。(Courseware for computer networks. . . . . . . West hsieh courseware. . . .)
- 2009-03-23 16:55:54下载
- 积分:1
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Packet-interception-analyzer
封包拦截分析器[WEB版]Packet interception analyzer/WEB version
(Packet interception analyzer/WEB version
)
- 2013-10-03 21:42:01下载
- 积分:1
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matpower6.0b1
基于30节点的半不量法编程,概率潮流计算,有详细注释(30 nodes based on the method of half not programming, the probabilistic power flow calculation, there are detailed notes)
- 2020-07-03 04:40:01下载
- 积分:1
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发送ARP包的控制台程序,简单易懂
发送ARP包的控制台程序,简单易懂-ARP packets sent to the console procedures, simple
- 2022-02-06 17:45:10下载
- 积分:1
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7297085
方块小游戏 windows sdk Box game windows sdk()
- 2017-11-14 07:02:12下载
- 积分:1