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Description: 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
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Size: 5144 |
Author: wq57 |
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Description: 程序实现了在液压锻造系统界面上的温度、压力、电机速度的检测与控制,程序经工程证实可用,程序开发平台vc-program in forging hydraulic system interfaces on the temperature, pressure, electrical speed detection and control, confirmed by the procedure works can be used, program development platform vc
Platform: |
Size: 627518 |
Author: 钱明贵 |
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Description: 手机连接ASP服务锻-phone services forging links ASP
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Size: 1024 |
Author: |
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Description: 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
Platform: |
Size: 5120 |
Author: wq57 |
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Description: 程序实现了在液压锻造系统界面上的温度、压力、电机速度的检测与控制,程序经工程证实可用,程序开发平台vc-program in forging hydraulic system interfaces on the temperature, pressure, electrical speed detection and control, confirmed by the procedure works can be used, program development platform vc
Platform: |
Size: 776192 |
Author: 钱明贵 |
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Description: ARP协议获得局域网内活动主机物理地址程序ARP协议对网络安全具有极其重要的意义。通过伪造IP地址和MAC地址实现ARP欺骗,能够在网络中产生大量的ARP通信量使网络阻塞。 -LAN ARP protocol to obtain the physical address of the host program activities within the ARP protocol on network security is extremely important significance. By forging IP address and MAC address of ARP deception to achieve can be generated in the network a large number of ARP traffic on the network congestion.
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Size: 3366912 |
Author: frost000 |
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Description: 通过伪造SSDT来拦截对SSDT的HOOK调用-By forging SSDT to intercept calls to the SSDT' s HOOK
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Size: 5120 |
Author: c_s |
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Description: 通过伪造SSDT表绕过360,安全卫士等杀毒软件主动防御-SSDT table to bypass 360 by forging, security guards and other anti-virus software, Active Defense
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Size: 5120 |
Author: 吴志强 |
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Description: 基于预测模型的一万吨水压机模锻质量控制系统-Prediction model based on ten thousand tons of hydraulic forging quality control system
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Size: 189440 |
Author: rish |
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Description: 魔兽游戏里踢人
我们HOOK Send函数。如果我们和某个玩家私聊,假设输入7720668,那么肯定可以在pBuffer中搜索到这个字符串,然后我们关闭相应的socket即可实现T人了。(这里也说明了:只有主机才可以T人。因为通过伪造TCP、SYN、ACK数据包来实现,几乎不可能)
-World of Warcraft game kicking us HOOK Send function. If we whisper a player, assuming that the input 7,720,668, then certainly in the pBuffer search to this string, and then we close the socket to achieve the appropriate T people. (This also explains: T can only host one, because by forging TCP, SYN, ACK packet to achieve, almost impossible)
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Size: 39936 |
Author: a88758289 |
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Description: ACM题目:蒙特卡洛算法。帕秋莉大人总是足不出户呢,这样怎么能行呢?于是咲夜找到帕秋莉大人,希望她能每天外出锻炼一段时间。当然,帕秋莉大人断然拒绝了。在咲夜的再三劝说下,帕秋莉大人答应了接下来接近一个月时间的训练计划,但是——帕秋莉大人怎么可能认真执行呢?帕秋莉大人每天会扔n次色子,只有当扔出了至少m次连续的大于3的数时,她才会真正执行训练计划。那么,现在告诉你每天帕秋莉大人扔色子的次数n,和最少连续的大于3数的次数m,你能算出帕秋莉大人每天外出运动的概率么?
注意:色子的点数是1~6,假设每次扔色子出现每种点数的概率都是相等的。 -Pa autumn Li adults always stay at home then, so how can do it? So Misaki autumn night to find Pa Li adults, I want her to go out every day forging
Refining for some time. Of course, Pa Li adults fall flatly refused. Misaki s repeated persuasion in the night, the adults agreed to par next autumn Li received
Nearly a month training program, but- how could adults Li Pa fall seriously enforced? Pa Li adults fall n times a day will throw color
Son, throw only when at least 3 m times greater than the number of consecutive time, she will really implement the training program. Well, now tell you every
Li Pa autumn days the number of adults throwing dice n, and the minimum number of consecutive times greater than 3 m, you can calculate the daily par Qiu Li adults go for sports
The probability of it?
Note: The dice is 1 to 6 points, assuming that each appeared to throw the dice the probability of each point are equal.
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Size: 2048 |
Author: Robin Zhang |
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Description: 这个是我的public class ArrayNew 的代码锻,希望大家可以借鉴一下,帮助到大家。-This is the code of my public class ArrayNew of forging, and hope that we can draw on to help everyone.
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Size: 2048 |
Author: 毛钰森 |
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Description: 这个是class Array的源代码锻,希望能帮助到大家,大家多多支持。-This is the class Array source code for forging, I hope to help to you, we can support.
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Size: 3072 |
Author: 毛钰森 |
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Description: 这个是我的public class MutiArray的源代码锻,希望能帮助到大家。-I public class MutiArray of source code for forging, and hope to help to you.
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Size: 2048 |
Author: 毛钰森 |
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Description: 用于锻打企业算料用,由圆钢算成管料重量,比较方便实用-Operator material used for forging enterprise count by round steel tube material weight, more convenient and practical
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Size: 9216 |
Author: 陈俊 |
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Description: 用C++编写的程序,是一个火箭,迅速的往前冲。-Program written using C++, a rocket, quickly forging ahead.
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Size: 192512 |
Author: david |
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Description: 工具包括tcp / udp / icmp的客户/服务器,平,traceroute,whois,arp、ip / iphelper fonctions像tcp / udp / icmp数据,arp / tcp / udp表,允许数据包捕获、数据包锻造和tcp / udp / cgi / icmp扫描-The tools include tcp/UDP/ICMP' s client/server, ping, traceroute, whois, arp, ip/IPHELPER fonctions like TCP/UDP/ICMP data arp/tcp/udp table allows packet capture, packet forging and tcp/UDP/cgi/ICMP scan
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Size: 317440 |
Author: 柠檬汁 |
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Description: 修改远程进程内存的vc6源代码,编译测试通过,绝对没有问题-Di Guo Yunsuojianshu Biaozhouzushou ╂ Zuosijianlun forging
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Size: 202752 |
Author: 3333 |
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Description: 自己写的串口调试助手,方便大家使用,感觉挺好用的-Di Guo Yunsuojianshu Biaozhouzushou ╂ Zuosijianlun forging
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Size: 25600 |
Author: 3333 |
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Description: 基于ABAQUS的锻造成型计算,涉及刚性体的圆角设置与接触设置(forging simulation based on ABAQUS)
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Size: 2048 |
Author: Jennychang
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