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1stopt 1.5破解版
1stOpt（First Optimization）是七维高科有限公司（7D-Soft High Technology Inc.）独立开发，拥有完全自主知识产权的一套数学优化分析综合工具软件包。在非线性回归，曲线拟合，非线性复杂工程模型参数估算求解等领域傲视群雄，首屈一指，居世界领先地位。除去简单易用的界面，其计算核心是基于七维高科有限公司科研人员十数年的革命性研究成果【通用全局优化算法】(Universal Global Optimization - UGO)，该算法之最大特点是克服了当今世界上在优化计算领域中使用迭代法必须给出合适初始值的难题，即用户勿需给出参数初始值，而由1stOpt随机
- 2020-12-02下载
- 积分：1
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点云完全配准算法比较
根据上次的点云粗配准，对点云进行完全配准，并且计算分析误差。主要包括NDT、3Dsc、FPFH、PFH几种算法比较。
- 2020-12-12下载
- 积分：1
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李纯明的水平集程序matlab
李纯明在美国做的水平集有论文和程序，感觉做的很不错了，有需要的可以借用。
- 2020-12-12下载
- 积分：1
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labview仿window风格页面
【实例简介】
- 2021-09-08 00:31:12下载
- 积分：1
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硬件架构的艺术 数字电路的设计方法与技术.pdf
本书揭示硬件架构的设计艺术，涵盖作者从事芯片设计行业十多年的经验和研究成果。本书共分9章，第1章介绍亚稳态的概念、量化方法和减少其影响的技术；第2章介绍同步设计的时钟技术，并提出可行的时钟方案以及系统复位策略。第3章介绍在设计中使用异步时钟或“处理多个时钟”时会出现的问题及解决方法。第4章介绍时钟分频器的各个方面和实现方法。第5章讲述低功耗设计技术，以减少动态和静态功耗。第6章介绍如何把流水线技术应用在处理器的设计中，从而提高性能；第7章讨论使用字节顺序的方法；第8章阐述去抖动技术，以消除毛刺和噪声。第9章介绍电磁干扰的原理、规程、标准和认证，以及电磁干扰的影响因素和减少电磁干扰的方法。
- 2020-12-03下载
- 积分：1
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基于统计特征的无参考图像质量评价
基于统计特征的无参考图像质量评价，内容包括5种自然统计特征的算法，有归一化亮度统计信息，MSCN领域乘积统计，梯度统计，log滤波器响应统计，颜色统计，最后建立模型，用巴士距离来评价得分
- 2019-04-17下载
- 积分：1
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1.5维普matlab程序
这是1.5维普的matlab程序
- 2020-12-08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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IET control theory and application 期刊的最新latex模板
控制学科sci期刊IET control theory and application 期刊的最新latex投稿模板
- 2020-11-28下载
- 积分：1
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微机接口课程设计电子钟实验
设计一个定时显示装置，用实验仪左侧的六个LED数码管显示时间，时间显示格式为24小时制。分秒值为59分55秒时开始报时，每秒钟蜂鸣器鸣叫一次，到整点报时停止。用小键盘控制时钟的启停和时钟的设置，键值具体定义：G键（启停键）——程序启动后，按下该键时钟启动；再次按下该键，暂停计时，显示当前时间。S键（设置键）——按下S键后，为时钟设置时、分、秒初始值。
- 2021-02-22 09:09:41下载
- 积分：1
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