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Audio_playback_and_record
This application shows how to use the different functionalities of Audio device
and ST MEMS microphones (MP45DT02), three different menu are available to switch
between them use the joystick button:
+ Explorer Audio File menu
+ Start Audio Player menu
+ Start Audio Recorder menu(This application shows how to use the different functionalities of Audio device and ST MEMS microphones (MP45DT02), three different menu are available to switch between them use the joystick button:+ Explorer Audio File menu+ Start Audio Player menu+ Start Audio Recorder menu)
- 2016-03-03 16:46:57下载
- 积分：1
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Labview视觉检测&数据库读写&串口通讯&事件应用&状态机应用
基于LABVIEW的相机检测灰尘的项目，此代码框架：电机转一个角度，相机拍照，照片分析，判别NG、OK,写入数据库，电机转一个角度，以此循环。里面应用了事件，状态机，生产消费结构等等结构。打开程序前先安装获取相机图片驱动、视觉模块、IO驱动。
- 2020-12-03下载
- 积分：1
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light1
说明： 用于光聚焦不准的图像恢复的方法，光是通过衍射使图像发生形变，使图像恢复回来。(not allowed for optical confocal image restoration methods Just so diffraction image deformation, image restoration back.)
- 2006-03-15 08:07:31下载
- 积分：1
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C
C语言课程设计的专用书籍 C高级使用编程，非常详尽的图形界面编程 (C language curriculum design of special books)
- 2013-10-15 15:19:12下载
- 积分：1
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Matrix
C#的程序,已经做好的了,就一简单的C#矩阵连乘的小程序，连界面程序源码都在的了(C# Procedures have been carried out of the, on a simple C# Matrix even by a small program, and even source interface procedures are of the)
- 2008-12-12 15:50:05下载
- 积分：1
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双树复小波变换源码，网上很难找的
双树复小波变换源码，来之不易的源码，网上不太容易下到。希望对大家有益。
- 2020-12-11下载
- 积分：1
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765487777
UITableViewCell 视图扩展，精选ios编程学习源码，很好的参考资料。(The UITableViewCell view, select learning IOS programming source code, a good reference.)
- 2013-12-07 12:53:08下载
- 积分：1
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全景图拼接
说明： VC毕业设计，全景图拼接算法实战源码+论文。算法基本思想，图像A和Ｂ，Ａ有至少１／３部分与Ｂ重合，在Ａ中找图像块ａ，在Ｂ中找图像块ｂ，利用夹角余弦距离，求ａ 、ｂ的相似度，利用循环使ｂ在Ｂ中移动，找到相似度最大的图像块ｂ。通过ｂ所在点坐标，确定B相对于Ａ的偏移量。通过偏移量将Ａ和Ｂ放在同一坐标系实现拼接。(VC graduation design, panorama mosaic algorithm actual source code + thesis. The basic idea of the algorithm is that at least one third of the images A and B overlap with B. Find the image block a in A, and find the image block b in B. Use the cosine distance of the angle to find the similarity of a and b. Use the loop to move b in B to find the image block b with the highest similarity. Determine the offset of B relative to A through the coordinates of the point where b is located. A and B are placed in the same coordinate system through the offset to achieve stitching.)
- 2020-04-04 12:50:11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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MessageHook
可捕获系统消息，功能简单实用，是初学hook的理想资料(System can capture news, features simple, practical, is the ideal beginner hook information)
- 2009-06-06 20:27:44下载
- 积分：1
