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coyote_0.3.0.2_sms_0.8.0.1
it iz a free sms creator, you can send free sms
- 2010-03-04 02:21:58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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transfers
局域网 实现文件的数据传输
传输进行了 文件属性的 处理， 接受后文件属性不变！(LAN file transfer data transfer carried out the deal with file attributes, file attributes unchanged accepted!)
- 2008-08-17 17:18:18下载
- 积分：1
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open_pc_and_port_scan
网络活动主机和开放端口扫描源程序，含开发文档，基于C#的rawsocket开发，支持 多线程
支持ARP，ICMP协议的活动主机扫描，支持TCP connect syn fin 三种方式的开放端口扫描，支持udp端口扫描(Networking activities, the host and open source port scan, including the development of the document, based on the C# The rawsocket development, support for multi-threaded support for ARP, ICMP scanning hosting agreement to support the TCP connect syn fin three ways of opening up port scanning, support udp port scan)
- 2020-11-01 21:50:01下载
- 积分：1
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Protocol6
计算机网络选择重传协议，效率达到90 以上，北邮计科计算机网络课程作业(Select the computer network retransmission agreement, more than 90 efficiency, BUPT Jike computer network course work)
- 2014-03-31 20:55:07下载
- 积分：1
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getIPaddress
通过此程序,可以获得本地计算机的IP地址,并以提示框的形式显示出来.(Through this process, access to the local computer' s IP address, and the form of prompt box is displayed.)
- 2009-05-07 14:27:16下载
- 积分：1
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jdrda
Source code Image matching source code for image matching
- 2018-12-31 05:02:48下载
- 积分：1
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ZXPortMap
ZXPortMap 端口映射源代码
一个很好的端口映射工具(ZXPortMap port mapping source code for a good port mapping tool)
- 2013-09-12 13:13:04下载
- 积分：1
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sound
求一段音频信号的短时过零率，可用于特征的选取，以及对音频进行分类筛选等场合。(For the sound process)
- 2018-03-23 14:14:44下载
- 积分：1
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KOSDemo
本opc server工具可用于各种opc的调试环境(This tool can be used for a variety opc server opc debugging environment)
- 2017-05-07 23:00:05下载
- 积分：1
