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锁相环DSP仿真程序.rar
【实例简介】锁相环DSP仿真程序,很经典:包括设计过程、与EXCEL的RTDX程序
- 2021-11-21 01:01:22下载
- 积分:1
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数学分析习题课讲义.
对于学习考研有很大帮助.目录中有连接,点击即可翻页,使用方便.
- 2020-12-07下载
- 积分:1
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基于VMD算法的信号降噪.rar
【实例简介】针对论文:基于VMD的故障特征信号提取方法,本人对论文中的仿真信号部分进行了复现,首先产生仿真信号;其次,利用VMD对信号进行分解,运用排列熵确定含高噪分量,然后对低噪分量进行重构;最后,将重构的信号进行分解,发现分量与最初的原始仿真信号基本一致。说明去噪效果较好。
- 2021-11-22 00:36:24下载
- 积分:1
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UltraISO
UltraISO软碟通是一款功能强大而又方便实用的光盘映像文件制作/编辑/转换工具,它可以直接编辑ISO文件和从ISO中提取文件和目录,也可以从CD-ROM制作光盘映像或者将硬盘上的文件制作成ISO文件。同时,你也可以处理ISO文件的启动信息,从而制作可引导光盘。使用UltraISO,你可以随心所欲地制作/编辑/转换光盘映像文件,配合光盘刻录软件烧录出自己所需要的光碟。
- 2020-12-06下载
- 积分:1
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三电平SVPWM
找了很久才找到的一个很好的三电平SVPWM调制学习文档,照着做就能实现!
- 2020-12-04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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基于MATLAB的永磁风力发电机动态仿真
直驱风电建模;matlab仿真;系统选型
- 2021-05-06下载
- 积分:1
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OpenCV单目视觉定位(测量)C++代码
OpenCV单目视觉定位(测量),能检测识别出自定义的物体标签,并计算出自定义物体距离摄像头光心的X,Y方向距离, 用于无人机/机器人视觉定位。
- 2020-11-28下载
- 积分:1
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精心收集的遗传算法相关资料(实例+matlab实现).rar
精心收集的遗传算法相关资料,包括遗传算法示例代码和matlab实现
- 2019-10-19下载
- 积分:1
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Hadoop分布式云盘系统
基于SpringMVC+Spring+HBase+Maven搭建的Hadoop分布式云盘系统。使用Hadoop HDFS作为文件存储系统、HBase作为数据存储仓库,采用SpringMVC+Spring框架实现,包括用户注册与登录、我的网盘、关注用户、我的分享、我收到的分享等五大功能模块。其中我的网盘包括查看文件列表,多文件上传,创建文件夹,文件重命名、复制与移动、下载、在线浏览、分享等诸多功能。所使用的技术包括:SpringMVC框架、Spring框架、Maven项目管理工具、Hadoop HDFS文件系统、HBase数据库、openoffice服务、pdf2swf文件格式转换工具、flex
- 2020-12-05下载
- 积分:1