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基于c#的p2p文件传输
本项目为网络课程设计的作业，采用c#实现，使用UDP传输协议，实现p2p的文件传输
- 2020-12-02下载
- 积分：1
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潮流计算求解导纳矩阵的通用程序
给定任何网络拓扑结构的导纳矩阵都能被求解、、包括带变压器
- 2020-12-08下载
- 积分：1
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MPPT增量电导法的模板与s函数
基于太阳能光伏板的最大功率跟踪simulink模型，最大功率算法采用增量电导法。
- 2020-12-11下载
- 积分：1
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基于matlab的数字图像的二维傅立叶变换(FFT)以及二维离散余弦DCT变换
【实例简介】
是基于matlab的数字图像的二维傅立叶变换(FFT)以及二维离散余弦DCT变换，提供里详细代码，.m文件，还包括讲解
- 2021-10-28 00:30:55下载
- 积分：1
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英飞凌IGBT驱动培训资料
在电力电子装置中的一个重要组成部分,输入连接到控制电路的PWM信号输出端，输出连接到装置各IGBT的门极和发射极，将装置中的控制电路产生的数字PWM信号进行隔离传输和电平转换和功率放大,实现控制电路对IGBT进行开通和关断动作的控制，从而实现装置的功率变换功能。InfineontechnologiesIGBT Gate Drive: Power Suppliesa Gate driving voltage for IGBT+15Vturn-on is normally +15VDriver>□1a Gate driving voltage for IGBTOVturn-off can be oV or negativeWith Single Power Supply5V to-15V)a Negative gate driving voltage+15Vhelps IGBt switch off fasterremain in off state but itDriverneeds dual power suppliesOVWhether to use oV or negativegate driving voltage depends15VWith Dual Power Supplieson the requirement on costZH Liang - Al APperformance05Dec2003agefor internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: InterfaceOpto-couplers is commonly used as interfacingdevices for applications where both signaltransmission and potential isolation are requiredOpto-couplers offers reliable isolation between IGBT(high-potential)& micro-controller(low-potential)Opto-couplers has long signal delay(us)and isexpensiveIsolation +VDpCCMicroDrivercontrollerZH Liang - Al AP05Dec2003Page 6for internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: Half-bridge DriveStandard configuration: 2 drivers, 2 power supplies, 2 opto-couplersAdvantages: standard, reliableDisadvantages: using opto-couplers, higher system costIsolation +VDDlCC1DriverCC1MicrocontrollerDD2+VCC2DriverCC2ZH Liang - Al AP05Dec2003Page 7for internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: Half-bridge DriveIn half-bridge IGBT drive, opto-couplers offer two functions(1)safety isolation &(2) shifting the potential of the gatesignal from uc potential to high-side potentialIf safety isolation between IGBT& micro-controller is notneeded, then"Level Shift" can replace opto-coupling andrealize function(2)OptoHigh-sideHigh-sidecouplerDriverIGBTMicro-Opto-LoW-sideLow-sidecontrollercouplerDriverIGBTZH Liang - Al AP05Dec2003Page 8for internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive Level shiftI FeaturesHVc(600V/1200V)沿PULSERFILTERShort Signal DelayPULSE■Cost- effectiveGEN■ No Safety Isolationevel Shift Half-bridge DriverI BenefitHigh-side““°IGBTO Saving Opto-couplersLevel(lower system costShiftMicro● Wider range ofcontrollerLevelLow-side■■■■■直■口m留■Switching FrequencyShiftIGBT(higher flexibility)ZH Liang - Al AP05Dec2003Page 9for internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: CLTNEWO CLT-Coreless Transformer (for signal transmissionu Coils(Primary Secondary Side)realized on SiliconO Short Signal Delay (allowing high or low switching frequencyu Lower Cost(compared to 1200V level-shift driver日 Safety IsolationCLT Half-bridge DriverHigh-sideCLT Single DriverIGBTCLTMicro-controllerCLTIGBTMicro-controllerLoW-sideIGBTZH Liang - Al AP05Dec2003agefor internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: Boot-strapBoot-strap circuit includes only a diode and a capacitora In half-bridge drive, the boot-strap circuit can replace the high-sidepower supply and make single-supply operation possibleWhen the low-side IGBT (or FWD)is on, the diode is forwardbiased and the capacitor is charged by the low-side power supplyvia the low-side IGBT and stores the energyWhen the low-side IGBt(and FWD)is OFF, the diode is reversebiased and blocks the dc-bus voltage to protect the low-sidecircuit. Meanwhile, the capacitor supplies energy to the high-sidedriverThe boot-strap capacitance should be high enough to keep thesupply voltage stable Capacitance needed can be calculatedbased on the working conditions and device parametersZH Liang - Al AP05Dec2003agefor internal use onlyInfineon Technologies Asia PacificInfineontechnologiesIGBT Gate Drive: Boot-strap circuitConventional2心菲*|■3 high-side power supplies■1|oW- side power supplyUsing boot-strap circuit心体心心●3 diodes& capacitorso 1 low-side power supplyFeaturesa Diode: ultra-fast recoverya Capacitor: general-purposed ITAa Dependent on low-side IGBTBenefitsSaving 3 PS(transformer cost)22ZH Liang - Al AP05Dec2003Reducing wiring connectionPage 12for internal use onlyInfineon Technologies Asia Pacific
- 2020-12-11下载
- 积分：1
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ffmpeg for MFC 1.2 （源代码）
自己做的FFMPEG移植到VC下的开源工程：ffmpeg for MFC。本工程将ffmpeg工程中的ffmpeg转码器（ffmpeg.c）移植到了VC环境下。并且使用MFC做了一套简单的界面。它可以完成一个视频转码的基本功能：封装格式以及编码格式的转换。通过本程序可以学习视频转码器的原理，以及Windows的消息机制等知识。更新记录==============================1.1版（2014.7.12） * 更换了部分界面 * 原工程支持Unicode编码 * 修复了一部分内存泄露的问题 * 修正了ffmpeg.c中的exit_program()函数。保证在转
- 2020-06-26下载
- 积分：1
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仓库管理系统数据库报告（包括SQL语句）
仓库管理系统数据库（包括SQL语句）设计报告，有源代码，E-R图等等
- 2020-12-11下载
- 积分：1
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这是一个用VS连接SQL_SERVER的一个简单demo
这是一个用VS连接SQL_SERVER的一个简单demo,有注释，清晰易懂，可以很快明白代码是怎么和数据库连接的，并且让你在应用程序里面修改数据的体验，大神勿喷，很好的入门例子。
- 2020-11-04下载
- 积分：1
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点云数据，包括原始数据以及从中提取的道路，房屋等数据
点云数据，包括原始数据以及从中提取的道路，房屋等数据
- 2020-12-04下载
- 积分：1
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30天学通Java项目案例开发(完整源代码)
30天学通 Java 项目案例开发 完整 源代码零积分第1章 预备知识第2章 东方大学学生成绩管理系统第3章 广陵学院图书馆管理系统第4章 讯时个人通讯录第5章 火车车次查询系统第6章 瑞捷商贸有限公司POS系统第7章 长河实业人事管理系统第8章 网络中国象棋对战第9章 局域网坦克大战第10章 购物新天地网上商城第11章 海川酒店预订系统
- 2020-06-23下载
- 积分：1
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