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matlab视觉伺服工具箱
matlab的视觉伺服工具箱 ,主要用在机器人控制上,
- 2020-12-11下载
- 积分：1
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[gui]Tkinter编程实例(python3.2)（源码）
Tkinter编程实例的源码。通过源码的学习（包含大量注释）就能掌握python gui Tkinter的编程。
- 2020-11-29下载
- 积分：1
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7*7卷积的一种verilogHDL实现
掌握卷积层的工作流程，通过卷积折叠硬件设计，进行一个map为20*20，卷积核为7*7的卷积运算。
- 2021-05-06下载
- 积分：1
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基于数字图像处理技术的光学元件表面缺陷检测与分析
本课题开发了基于数字图像处理的光学元件表面缺陷检测系统,系统对于表面缺陷检测较之于目测法的可以实现精确,快速,可靠,以及数字化处理。 介绍了国内外精密光学元件表面缺陷的各种评价标准与级数设定,并介绍了表面缺陷的一些常用的检测方法。主要研究内容是开发一种应用于光学元件表面缺陷图像检测系统。硬件系统设计中的三维电控平移台及服务器处理系统用于控制图像的采集。
- 2021-05-07下载
- 积分：1
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ISO 11898 2016更新全套6个部分
花钱买的，六个部分组成.├── ISO 11898-1 2015.12.15.pdf├── ISO 11898-2 2016.12.15.pdf├── ISO 11898-3 2006.06.01.pdf├── ISO 11898-4 2004.08.01.pdf├── ISO 11898-5 2007.06.15.pdf└── ISO 11898-6 2013.11.01.pdf
- 2020-12-05下载
- 积分：1
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简易异步FIFO代码及testbench
简易异步FIFO代码及testbench，满足基本FIFO要求，简单实用
- 2020-12-06下载
- 积分：1
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C++ 基于遗传算法的矩形排样 具有可视化的界面
C++ 基于遗传算法的矩形排样 具有可视化的界面。利用遗传算法解决矩形排样问题，具有可视化的界面，输入数据为含有矩形的长和宽的文本文件，输出的结果以可视化的形式显示出来MFC 遗传算法 矩形排样
- 2020-12-10下载
- 积分：1
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bp神经网络手写字符（汉字识别）
手写汉字识别，网上找到的使用了BP神经网络
- 2020-11-28下载
- 积分：1
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交织解交织vhdl代码
用VHDL语言编写的实现交织编码和解交织功能的代码。交织采用按行写入，按列读出的方法实现。主要包括：信源信号产生（20位的m序列），交织器，解交织器。为实现流水线的操作，采用了两个交织器和两个解交织器，当一个写入数据的时候，另一个读出数据
- 2021-05-07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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