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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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video_trans
基于udp协议和openCV编程实现的视频传输程序,具有自动获取本地IP地址功能,客户端输入服务器端IP,点击发送,服务器端可实现实时的接收和播放,在可靠的局域网环境下,多次测试传输可靠,除此以外具有原理简单,可扩展的优点。(Udp protocol and openCV programming-based video transmission program has automatic access to the functions of the local IP address, server-side IP client input and click send, the server side can receive and play real-time, reliable LAN environment, several testsreliable transmission, in addition to a simple principle, scalable advantages.)
- 2021-03-30 17:39:10下载
- 积分:1
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Computernetwork
计算机网络课程设计计算机网络课程设计计算机网络课程设计(Computer network)
- 2011-01-15 16:43:38下载
- 积分:1
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NetworkMonitoring
课程设计自己编写的一个网络抓包软件,MFC界面,并且对包进行分析。很值得学习哦。(Design their own curriculum prepared by a network of ethereal, MFC interface, and the right package for analysis. Oh, very much worth learning.)
- 2009-12-27 16:14:14下载
- 积分:1
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TCPViewer
tcp查看器,可以查看tcp协议的相关信息,还包括设置,等等,对学习tcp协议有很大帮助(tcp viewer, can view information about tcp protocol, but also include the provision, and so on, to learn tcp protocol has very helpful)
- 2008-05-23 11:16:59下载
- 积分:1
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deijianji
vb局域网对讲机,实现两台机器之间的通信(vb LAN radio to achieve communication between two machines)
- 2013-06-20 11:49:24下载
- 积分:1
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5756450
模拟MFC实现动态创建,结合文章使用,很不错的()
- 2018-06-15 06:19:16下载
- 积分:1
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LAN-monitoring-system
局域网监控系统采用vc++6.0编写,需要oracle数据库(LAN monitoring system)
- 2013-12-13 22:03:19下载
- 积分:1
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Network-security-assessment-system
网络安全评估系统,根据评估目标和评估内容的要求构建的一组反映网络安全水平的相关指标,据以搜集评估对象的有关信息资料,反映评估对象的网络安全的基本面貌、素质和水平。(Network security assessment system)
- 2014-04-04 19:23:01下载
- 积分:1
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cnc_quilter
CnC Cutter Mach3 Macro
- 2015-05-28 18:53:12下载
- 积分:1