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CBIR(MATLAB,HSV直方图，Haar纹理特征，GIST特征，形状特征)
一个详细CBIR的MATLAB代码，包括HSV直方图特征、Haar纹理特征、GIST特征、形状特征。保证可用。.
- 2020-12-05下载
- 积分：1
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基于格雷码的结构光重建代码（MATLAB版本）
该代码为brown university相关技术人员编写，旨在用于学习研究3D结构光的原理、算法实现和应用。由于原有的网站( http://mesh.brown.edu/byo3d/index.html )近期无法访问，为了便于3D爱好者可以方便学习相关内容，特将该网站部分代码进行上传。切记：不要将该代码直接用于商业目的，否则后果自负！
- 2021-05-06下载
- 积分：1
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TCPIP实用程序&温度数据采集系统程序（上位机程序）+MFC+ODBC数据库接口&虚拟串口的完整源代码
TCPIP实用程序&温度数据采集系统程序（上位机程序）+MFC+ODBC数据库接口&虚拟串口的完整源代码
- 2021-05-07下载
- 积分：1
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【第5部分：确定安全完整性等级的方法示例】GBT 20438.5-2017(IEC 61508-5-2010) 电气 电子 可编程电子安全相关系统的功能安全.pdf
【第5部分：确定安全完整性等级的方法示例】GBT 20438.5-2017(IEC 61508-5-2010) 电气 电子 可编程电子安全相关系统的功能安全.pdf
- 2020-11-29下载
- 积分：1
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机器人 编队 蜂拥 matlab 仿真
该程序用于Matlab机器人编队仿真,主要包括传感器模块，通信模块，控制器模块，感知环境模块，易于修改并使用！
- 2020-12-05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51单片机的温度控制系统
报告，程序（asm,DSN,hex以及keil调试文件等），仿真截图仿真原理图是(.DSN)格式的，仿真原理图装载（.hex）文件后可直接运行。温度为实时监测显示（液晶显示）,监测范围（0-99摄氏度）可自己预设，可以设到只监控一点的温度值
- 2021-05-07下载
- 积分：1
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认知无线电频谱感知中能量检测方法Matlab仿真代码
该代码绘制了在虚警概率一定时，检测概率和信噪比之间的关系曲线即检测器的检测性能曲线。代码参考了文献《Sensing-Throughput Tradeoff for Cognitive Radio Networks》。
- 2020-12-06下载
- 积分：1
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51单片机驱动ov7670
在51单片机stc12c5a60s2上驱动摄像头ov7670(带fifo）;亲测有效
- 2020-11-28下载
- 积分：1
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嵌入式实时操作系统的多线程计算--基于ThreadX和ARM--随书光盘
ThreadX是优秀的硬实时操作系统(RTOS)，适用于深嵌入式应用中，具有规模小、实时性强、可靠性高、无产品版权费、易于使用等特点，并且支持大量的处理器和SoC，包括ARM、PowerPC、SH 4、MIPS、ADI DSP、TI DPS、Nios II等，因此广泛应用于消费电子、汽车电子、工业自动化、网络解决方案、军事与航空航天等领域中。
- 2020-12-05下载
- 积分：1
