声光控路灯电路 课程设计

HLS设计套件本教程介绍Vivado®高级合成(HLS)。您可以学习使用图形用户界面(GUI)和Tcl环境执行高级综合的主要任务。本教程展示了如何使用优化指令将初始RTL实现转换为低面积和高吞吐量的实现。#实验例程 #中文翻译 #UG871，#真实可信，绝对中文

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

使用python读取摄像头视频，并将信息显示到TK窗口，在窗口可编辑性上有很大的提高

用粒子群算法优化支持向量机的matlab程序，用于对股价、经济的预测作用，优化后预测精确

粒子群算法工具箱 http://blog.csdn.net/niuyongjie 里面的完整代码

Java Card技术适用于智能卡和其他高度专业化设备的Java平台，这些设备的内存和处理能力都比J2ME设备的要求更加苛刻。智能卡在个人信息安全方面有很大用处。它们可用于添加验证和安全访问到需要高级别安全的信息系统。保存在智能卡上的信息是便携的。使用Java Card技术，你可能随身携带保存在一个小型并且安全的媒介上的重要并且敏感的个人信息，比如你的病历、信用卡号或者电子现金余额。

【实例简介】一本新出的关于zynq的新书，英文版的，里面对xilinx zynq的开发，有详细的探讨与运用。

通过实例对人工神经网络的实际应用进行分析和讲解，清晰的代码一目了然每神经元有许多输入、输出键,各神经元之间以连接键(又称突触)相连,它决定神经元之间的连接强度(突触强度)和性质(兴奋或抑制),即决定神经元间相互作用的强弱和正负,共有三种类型:兴奋型连接、抑制型连接、无连接。这样,个神经元(一般很大)构成一个相互影响的复杂网终系统,通过调整网络参数,可使人工神经网络具有所需要的特定功能,即学习、训练或自组织过程。一个简单的人工神经网络结构图如下所示:上图中,左侧为输入层(输入层的神经元个数由输入的维度决定),右侧为输出层(输出层的神经元个数由输出的维度决定),输入层与输出层之间即为隐层。输入层节点上的神经元接收外部环境的输入模式,并由它传递给相连隐层上的各个神经元。隐层是神经元网络的内部处理层,这些神经元在网络内部构成中间层,不直接与外部输入、输出打交道。人工经网络所具有的模式变换能力主要体现在隐层的神经元上。输出层用于产生神经网络的输出模式。多层神经网络结构中有代表性的有前向网络(BP网络)模型Page 3 of 25多层侧抑制神经网络模型和带有反馈的多层神经网络模型等。本文主要探讨前向网络模型多层前向神经网络不具有侧扣制和反馈的连接方式,即不其有本层之间或指向前一层的连接弧,只有指向下一层的连接弧。代表是BP神经网终:输入模式由输入层进入网终,经中间各隐层的顺序变换,最后由输出层产生一个输出模式,如下图所示:输入层隐层输出层多层前向神经网终由隐层神经元的非线性处理衍生它的能力,这个任务的关键在于将神经元的加权输入非线性转换成一个输出的非线性激励函数。下图给出了一个接收个输入的神经元:Page 4 of 25神经元的输出由下式给出:这里输入的加权和(括号内部分)由一个非线性函数传递,表示与偏差输入相关的权值,表示与第个输入相关的权值。使用最广泛的函数是S形函数,其曲线家族包括对数函数和双曲正切函数,这些都可用来对人口动态系统、经济学系统等建模。另外所用的其他函数有高斯函数、正弦函数、反正切函数,在此不一一展开介绍,本文主要使用的激励函数是对数函数,函数表达式为函数曲线如下图所示对于有限输入量,对数函数输出范围为∈。在输入为=时,输出值为中问值输出在—附近随着输入的增加以相对快的Page 5 of 25速率增加并非常慢地到达上限。对于

基于MATLAB的单闭环转速负反馈直流调速系统仿真

packETH是一个数据包处理工具。它是一个Linux GUI的以太网工具。它允许你快速创建和发送数据包序列。它支持各种协议来创建和发送数据包。可以设置数据包数量和数据包之间的延迟，还可以在此工具中修改各种数据包内容。