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2018年全国大学生电子设计大赛A题设计报告
资源为2018年全国大学生电子设计大赛山东赛区A题电流检测装置的设计报告,报告格式规范,含有详细的设计原理、方案比较和测试数据以及分析,另附带部分电路图和pcb板图,该作品荣获山东赛区省级一等奖,可供学习的参考价值大。
- 2019-12-29下载
- 积分:1
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ubuntu12.04环境下直接Floodlight+miniet搭建OpenFlow测试平台
在ubutnu12.04系统下通过安装floodlight+mininet部署OpenFlow试验平台进行抓包测试。
- 2020-12-07下载
- 积分:1
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Optimum Array Processing 最优阵列处理 (全)
最优阵列处理,不得不要的经典。方便大家,打包一本整体发给大家。
- 2020-06-19下载
- 积分:1
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vb&access采购系统
vb access 采购系统单机版,编辑已通过,具有权限维护,商品信息维护,用户信息维护,供应商信息维护,采购单申请,采购单审查,采购单采购,入库,库存信息管理查询等功能
- 2020-11-04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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RBF神经网络的拟合预测.rar
【实例简介】详细的M文件,讲解了在matlab中进行RBF预测
- 2021-12-13 00:43:31下载
- 积分:1
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汉明码(7,4)
这里的汉明码来自《差错控制编码》林舒第二版,为(7,4)汉明码,程序采用C++编写,通过AWGN信道,最后性能曲线通过matlab画出,对比未编码BPSK信道性能。
- 2020-11-30下载
- 积分:1
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C#小型超市管理系统+SQL数据库
自己写的_C#小型超市管理系统+SQL数据库,里面还附送项目文档
- 2020-12-04下载
- 积分:1
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C-MAPSS大型涡轮风扇发动机数据集
涡轮风扇发动机从正常运行至失效的全寿命采集的实验数据,对于研究涡轮风扇发动机的故障的预测及性能评估想必有用。-Turbofan engine failure from normal operation to the whole life of the experimental data collected for the study of turbofan engine failure prediction and performance evaluation must be useful.
- 2020-12-11下载
- 积分:1
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unity3d联网斗地主服务端+客户端
基于unity3d的联网斗地主服务端+客户端源码,实现了注册登录斗地主等功能
- 2020-12-04下载
- 积分:1