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Oh, I was under the "non
呵呵，是俺根据《无缺留言本》改写的asp的留言本，比较好用，也很好看，希望各位喜欢，详细介绍请看zip文件的readme.txt-Oh, I was under the "non-repudiation of the message" rewrite of the asp of messages, better quality, but also very good, I hope you like details please see the zip file readme.txt
- 2023-04-03 15:05:04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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javamail-1.4.2
Java邮件开发系统 收发邮件 实现邮件的编写 发送和接受的功能！ (failed to translate)
- 2009-10-27 22:08:35下载
- 积分：1
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NDK_demo2012
Network Development Kit is a set of simple classes for a client-server architecture. Network Development Kit is a set of simple classes for a client-server architecture.
- 2012-02-10 13:30:27下载
- 积分：1
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图解TCPIP(第5版)
说明： 这是一本图文并茂的网络管理技术书籍，旨在让广大读者理解TCP/IP的基本知识、掌握TCP/IP的基本技能。
书中讲解了网络基础知识、TCP/IP基础知识、数据链路、IP协议、IP协议相关技术、TCP与UDP、路由协议、应用协议、网络安全等内容，引导读者了解和掌握TCP/IP，营造一个安全的、使用放心的网络环境。
本书适合计算机网络的开发、管理人员阅读，也可作为大专院校相关专业的教学参考书。(This is a illustrated network management technology book, which aims to let readers understand the basic knowledge of TCP / IP and master the basic skills of TCP / IP.
The book introduces the basic network knowledge, TCP / IP basic knowledge, data link, IP protocol, IP protocol related technology, TCP and UDP, routing protocol, application protocol, network security and other contents, guides readers to understand and master TCP / IP, and creates a safe and secure network environment.
This book is suitable for the development and management of computer network. It can also be used as a teaching reference book for related majors in Colleges and universities.)
- 2020-06-02 08:49:42下载
- 积分：1
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ABS防抱死模型
基于matlab的abs防抱死系统，欢迎大家下载，休息休息(Mats-based abs anti-lock system)
- 2019-04-14 22:21:26下载
- 积分：1
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浙大网络编程课全套资料，其中包括课件，相关软件，八个编程例子，课后作业，实验与应用等五个部分。希望对大家学习网络编程有所帮助。开发环境为VC 6++ MFC...
浙大网络编程课全套资料，其中包括课件，相关软件，八个编程例子，课后作业，实验与应用等五个部分。希望对大家学习网络编程有所帮助。开发环境为VC 6++ MFC-Zheda a full set of network programming classes, including courseware and related software, eight examples of programming, after-school work, experiments and applications of five parts. Everyone would like to learn network programming help. Development environment for VC 6++ MFC
- 2022-04-12 11:12:23下载
- 积分：1
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pca
主成分分析图像，分析图像像素组成部分，高维提取低维特征(Principal component analysis image, analysis of image pixel components, high dimensional extraction of low dimensional features)
- 2020-06-23 17:20:01下载
- 积分：1
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thd_chaonel
在高斯白噪声信道下,采用qpsk调制的ofdm系统的源码,(In the Gao Si white noise channel, using qpsk modulation of the ofdm system source code,)
- 2018-08-04 19:52:06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
