Design for manufacturability and statistical design encompass a number of activities and areas of study spanning the integrated circuit design and manufacturing worlds. In the early days of the planar integrated circuit, it was typical for a handful of practitioners working on a particular design to have a fairly complete understanding of the manufacturing process, the resulting semiconductor active and passive DEVICEs, as well as the resulting circuit - often composed of as few as tens of DEVICEs. With the success of semiconductor scaling, predicted and - to a certain extent even driven - by Moore’s law, and the vastly increased complexity of modern nano-meter scale processes and the billion-DEVICE circuits they allow, there came a necessary separation between the various disciplines.
标签： Manufacturability Statistical Design for and
上传时间： 2020-06-10
上传用户：shancjb
设置易福门传感器软件，IFM LR DEVICE 参数设定软件。
标签： 传感器 软件设置易福门传感器软件
上传时间： 2021-01-10
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基于TMS320F2812 光伏并网发电模拟装置PROTEL设计原理图+PCB+软件源码+WORD论文文档,硬件采用2层板设计，PROTEL99SE 设计的工程文件，包括完整的原理图和PCB文件，可以做为你的学习设计参考。 摘要：本文实现了一个基于TMS320F2812 DSP芯片的光伏并网发电模拟装置，采用直流稳压源和滑动变阻器来模拟光伏电池。通过TMS320F2812 DSP芯片ADC模块实时采样模拟电网电压的正弦参考信号、光伏电池输出电压、负载电压电流反馈信号等。经过数据处理后，用PWM模块产生实时的SPWM 波，控制MOSFET逆变全桥输出正弦波。本文用PI控制算法实现了输出信号对给定模拟电网电压的正弦参考信号的频率和相位跟踪，用恒定电压法实现了光伏电池最大功率点跟踪（MPPT），从而达到模拟并网的效果。另外本装置还实现了光伏电池输出欠压、负载过流保护功能以及光伏电池输出欠压、过流保护自恢复功能、声光报警功能、孤岛效应的检测、保护与自恢复功能。系统测试结果表明本设计完全满定设计要求。关键词：光伏并网，MPPT，DSP Photovoltaic Grid-connected generation simulator Zhangyuxin，Tantiancheng，Xiewuyang(College of Electrical Engineering, Chongqing University)Abstract: This paper presents a photovoltaic grid-connected generation simulator which is based on TMS320F2812 DSP, with a DC voltage source and a variable resistor to simulate the characteristic of photovoltaic cells. We use the internal AD converter to real-time sampling the referenced grid voltage signal, outputting voltage of photovoltaic, feedback outputting voltage and current signal. The PWM module generates SVPWM according to the calculation of the real-time sampling data, to control the full MOSFET inverter bridge output sine wave. We realized that the output voltage of the simulator can track the frequency and phase of the referenced grid voltage with PI regulation, and the maximum photovoltaic power tracking with constant voltage regulation, thereby achieved the purpose of grid-connected simulation. Additionally, this DEVICE has the over-voltage and over-current protection, audible and visual alarm, islanding detecting and protection, and it can recover automatically. The testing shows that our design is feasible.Keywords: Photovoltaic Grid-connected，MPPT，DSP 目录引言 11. 方案论证 11.1. 总体介绍 11.2. 光伏电池模拟装置 11.3. DC-AC逆变桥 11.4. MOSFET驱动电路方案 21.5. 逆变电路的变频控制方案 22. 理论分析与计算 22.1. SPWM产生 22.1.1. 规则采样法 22.1.2. SPWM 脉冲的计算公式 32.1.3. SPWM 脉冲计算公式中的参数计算 32.1.4. TMS320F2812 DSP控制器的事件管理单元 42.1.5. 软件设计方法 62.2. MPPT的控制方法与参数计算 72.3. 同频、同相的控制方法和参数计算 8
标签： tms320f2812 光伏 并网发电 模拟 protel pcb
上传时间： 2021-11-02
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This paper presents a new type of electromagnetic damper with rotating inertial mass that has been devel oped to control the vibrations of structures subjected to earthquakes. The electromagnetic inertial mass damper (EIMD) consists of a ball screw that converts axial oscillation of the rod end into rotational motion of the internal flflywheel and an electric generator that is turned by the rotation of the inner rod. The EIMD is able to generate a large inertial force created by the rotating flflywheel and a variable damping force devel oped by the electric generator. DEVICE performance tests of reduced-scale and full-scale EIMDs were under taken to verify the basic characteristics of the damper and the validity of the derived theoretical formulae. Shaking table tests of a three-story structure with EIMDs and earthquake response analyses of a building with EIMDs were conducted to demonstrate the seismic response control performance of the EIMD. The EIMD is able to reduce story drifts as well as accelerations and surpasses conventional types of dampers in reducing acceleration responses.
标签： electromagnetic response Seismic control using
上传时间： 2021-11-04
上传用户：a1293065
PowerPCB(Scurity DEVICE)– (Parallel Port)– License.dat ( PowerPCB v3.5Pcblic.dat)– /padspwr/security/licenses • !"#$%&– ! "#$(Key)%& (license.dat 'pcblic.dat)– () *+,- ./01.)
标签： pads
上传时间： 2021-11-22
上传用户：bluedrops
此文档包括USB协议的全部协议说明，包括USBhost主站和DEVICE从站的协议格式，从识别USB设备类型，到识别USB设备描述符，对设备描述符进行拆分和加密都有描述，根据设备描述符可以将数据部分进行拆解，对每个item都有详细的解释，我是之前对USB完全不了解，遇到问题什么都解决不了，连什么是主站什么是从站都分不清，调试期间一直连不上USB设备，期间还弄得两个DEVICE设备相互连接，花了很多时间都没有搞定，最终还是通过看这个手册才学到一些，最让我开心的是这个文档是中文的，对于英语水平不是很好的朋友是个不错的选择，我通过这本书做成了一个自定义的从站，还做了一个可以识别三种设备类的主站，包括HID，U盘存储类等等，而且主站能够识别市场上现有的键盘，我试了两种型号的，鼠标试了三种，包括联想电脑，戴尔电脑，清华同方的，全部都能正常识别，能够拆分鼠标和键盘传递的信息，感觉非常有用，请小伙伴们放心下载，有什么问题不懂得，可以私信我
标签： usb
上传时间： 2021-12-09
上传用户：qdxqdxqdxqdx
高通(Qualcomm)蓝牙芯片QCC5151_硬件设计详细指导书（官方内部培训手册）共52页其内容是针对硬件设计、部分重要元器件选择(ESD，Filter）及走线注意事项的详细说明。2 Power management 2.1 SMPS 2.1.1 Components specification 2.1.2 Input power supply selection 2.1.3 Minimize SMPS EMI emissions 2.1.4 Internal LDOs and digital core decoupling 2.1.5 Powering external components 2.2 Charger 2.2.1 Charger connections.2.2.2 General charger operation2.2.3 Temperature measurement during charging 2.3 SYS_CTRL 3 Bluetooth radio3.1 RF PSU component choice 3.2 RF band-pass filter3.3 Layout (天线 走线的注意事项)4 Audio4.1 Audio bypass capacitors 4.2 Earphone speaker output4.3 Line/Mic input 4.4 Headphone output optimizition5 LED pads 5.1 LED driver 5.2 Digital/Button input 5.3 Analog input5.4 Disabled 6 Reset pin (Reset#)7 QSPIinterface 8 USB interfaces 8.1 USB DEVICE port8.1.1 USB connections8.1.2 Layout notes8.1.3 USB charger detection
上传时间： 2022-01-24
上传用户：XuVshu
Altera 官方的cyclone5的完整手册，共1091页。 非常详细，工程师开发必看。
标签： Cyclone
上传时间： 2022-01-28
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The SI2302 uses advanced trench technology to provide excellent RDS(ON), low gate charge andoperation with gate voltages as low as 2.5V. This DEVICE is suitable for use as a Battery protection orin other Switching application
标签： si2302
上传时间： 2022-02-11
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The PW3467 uses advanced trench technology to provide excellent RDS(ON), low gate charge andoperation with gate voltages as low as 4.5V. This DEVICE is suitable for use as a Battery protection orin other Switching application
标签： pw3467
上传时间： 2022-02-11
上传用户：qingfengchizhu
