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MakePwd
这是一个简单的密码生成程序。可以选择生成包含数字、字母(区分大小写)、特殊符号的密码。(This program can generate rand password.The password include number,letter and additional character!)
- 2009-11-27 15:50:04下载
- 积分:1
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malttanence
UVW-1200录像机RS-232控制源程序,CVC,有能给注释的吗(Sale - 1200 VCR RS - 232 control source program, CVC, have to be able to give comments)
- 2017-07-21 22:43:44下载
- 积分:1
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USBCAN-test
采用周立功的CAN转USB模块,厂家提供的例程!很好的开发参考(The ZLG CAN to USB module routines! A good development reference)
- 2012-05-31 17:53:55下载
- 积分:1
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0
说明: USB Spread Source Cod In Visual Basic
- 2013-09-01 17:41:02下载
- 积分:1
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show3DS
vc++实现读取3ds文件,显示,可控制移动(loader 3ds file ,show model and can control)
- 2014-06-16 08:52:01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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GMRES
本文件是gmres算法的c语言代码,大家都抓紧抢着下载哦。(This document is gmres algorithm c language code, everyone rushing to seize download oh.)
- 2014-01-04 22:15:10下载
- 积分:1
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mfcdde
DDE编程的例子(Examples of DDE programming)
- 2020-06-29 15:40:02下载
- 积分:1
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sunxin
孙鑫C++教程(全20讲)PPT课件讲义和源代码,对于初学c+很有帮助(Xin Sun C++ tutorials (all 20 speakers) PPT courseware notes and source code, useful for beginners c+)
- 2011-09-27 16:39:32下载
- 积分:1
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rect
我是一个初学着 现在也没有什么好的代码 需要下载资料来学习就只好上传自己写的旋转图形绘制的代码(I am a beginner with now Nothing good code required to download information on the study can only upload your own graphics rendering rotary Writing code)
- 2009-03-25 22:52:43下载
- 积分:1