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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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Flow_Test_GetIfTable
说明: 监控本地网卡网络流量, 如果有多个网卡, 可分别统计每个网卡的进出网络流量, 并统计总的网络流量.(Monitoring the local LAN network traffic, if there are multiple network cards, network cards can access statistics for each network traffic and overall network traffic statistics.)
- 2008-10-07 17:03:43下载
- 积分:1
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Joker-Hacks-Dayz-Sa
Another Dayz SA hack with script r
- 2016-02-05 14:06:38下载
- 积分:1
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visualc++WANGLUOBIANCHENG
visual c++ 网络通信编程实用案例精选(visual c++ network communications programming practical cases Featured)
- 2007-09-01 00:08:19下载
- 积分:1
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vbfirewall203
界面清爽VB版高级专业防火墙 Ver 2.0.3 源代码,非常棒,强烈推荐!(VB version of the interface refreshing senior professional firewall Ver 2.0.3 source code, great, highly recommended!)
- 2008-12-20 14:27:09下载
- 积分:1
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WinPcap_4_0_beta2
数据包网卡抓包程序,实现网卡监控,并实现查看功能。(Packet capture card procedures, the realization of the network card to monitor and achieve viewing.)
- 2009-01-13 12:23:17下载
- 积分:1
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Network-Engineer-English-Vocabulary
网络工程师英语词汇表网络工程师英语词汇表网络工程师英语词汇表网络工程师英语词汇表(Network Engineer English Vocabulary
Network Engineer English Vocabulary
Network Engineer English Vocabulary
Network Engineer English Vocabulary
)
- 2013-11-04 20:01:04下载
- 积分:1
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update-online
一套完整的在线升级程序,只需修改配置文件即可成为自己的升级程序。(A complete set of online upgrade program, simply modify the configuration file to become their own upgrade process.)
- 2013-09-18 09:28:45下载
- 积分:1
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1
说明: WinSock网络编程实用宝典。适合初学者以及深入理解网络编程的朋友。(WinSock network programming practical Collection. Suitable for beginners as well as in-depth understanding of network programming friends.)
- 2011-07-04 17:38:27下载
- 积分:1
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sniffer
说明: VC++编程实现网络嗅探器 简单 但是完整可运行。比较基础(VC++ programming for network sniffer)
- 2011-03-11 09:47:09下载
- 积分:1