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多径衰落仿真器matlab代码
该代码对一个时间频率双衰落信道进行了仿真,刻画出了其二阶统计特性。
- 2020-12-03下载
- 积分:1
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C#常用工具类代码集合Util(自己工作总结)
C#常用工具类代码集合Util(自己工作总结),欢迎分享给大家,一起进步,有什么问题可以找我沟通,谢谢大家。
- 2020-12-11下载
- 积分:1
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tucker分解工具包
张量分解工具包 高维数据SVD分解 多重因子分析的工具
- 2020-12-12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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雷达信号分选源码(matlab)
仿真产生的雷达信号脉冲,并使用聚类方法进行分选,代码精辟详细。值得借鉴!
- 2020-12-06下载
- 积分:1
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激光雷达数据采集或读取、显示、直线拟合、角点提取、圆弧拟合、位姿解算等
激光雷达数据采集或读取、显示、直线拟合、角点提取、圆弧拟合、位姿解算等
- 2020-12-06下载
- 积分:1
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STM32F103 定时器触发ADC+DMA中断+双缓冲
STM32F103 使用定时器触发ADC,并使用DMA中断+双缓冲实现数据采集。博客地址http://blog.csdn.net/u014124220/article/details/50785775
- 2020-06-23下载
- 积分:1
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CSAPP: shell lab 解答
经典的shell实验, 实验内容为实验一个unix下的简易的shell程序, 搞懂了这个程序对于unix下的sigal机制会有一个更深入的理解, CMU大学(卡耐基 梅隆大学)经典计算机课程实验之一, 里面含有实验完整内容及其源程序, 还有详细的解答过程, 很多国内大学的计算机课程都选用此实验作为其课程设计之一!
- 2020-12-06下载
- 积分:1
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C# onvif获取摄像头rtsp视频流地址和抓拍图片地址
C#使用onvif协议获取网络摄像头rtsp视频流地址和图片地址,将rtsp视频流地址保存到本地mp4可以参考我的另一个资源
- 2020-11-27下载
- 积分:1
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基于HMM模型中文分词系统
基于HMM模型中文分词系统,使用python代码。内有使用说明!
- 2020-12-11下载
- 积分:1