The PW2202 is silicon N-channel Enhanced VDMOSFETs, is obtained by the self-aligned planarTechnology which reduce the conduction loss, improve switching performance and enhance theavalanche energy. The transistor can be used in various power switching circuit for system
标签： pw2202
上传时间： 2022-02-11
上传用户：默默
高清电子书-C++ Primer Plus, 第6版英文版 1438页Learning C++ is an adventure of discovery, particularly because the language accommodates several programming paradigms, including object-oriented programming, generic programming, and the traditional procedural programming.The fifth edition of this book described the language as set forth in the ISO C++ standards, informally known as C++99 and C++03, or, sometimes as C++99/03. (The 2003 version was largely a technical correction to the 1999 standard and didn’t add any new features.) Since then, C++ continues to evolve.As this book is written, the international C++ Standards Committee has just approved a new version of the standard.This standard had the informal name of C++0x while in development, and now it will be known as C++11. Most contemporary compilers support C++99/03 quite well, and most of the examples in this book comply with that standard. But many features of the new standard already have appeared in some implementations, and this edition of C++ Primer Plus explores these new features. C++ Primer Plus discusses the basic C language and presents C++ features, making this book self-contained. It presents C++ fundamentals and illustrates them with short, to-the-point programs that are easy to copy and experiment with.You learn about input/output (I/O), how to make programs perform repetitive tasks and make choices, the many ways to handle data, and how to use functions.You learn about the many features C++ has added to C, including the followi
标签： C++
上传时间： 2022-02-19
上传用户：trh505
基于FPGA设计的相关论文资料大全 84篇用FPGA实现FFT的研究 刘朝晖 韩月秋 摘 要 目的 针对高速数字信号处理的要求，给出了用现场可编程门阵列(FPGA)实现的 快速傅里叶变换(FFT)方案.方法 算法为按时间抽取的基4算法，采用递归结构的块浮点运 算方案，蝶算过程只扩展两个符号位以适应雷达信号处理的特点，乘法器由阵列乘法器实 现.结果 采用流水方式保证系统的速度，使取数据、计算旋转因子、复乘、DFT等操作协 调一致，在计算、通信和存储间取得平衡，避免了瓶颈的出现.结论 实验表明，用FPGA 实现高速数字信号处理的算法是一个可行的方案. 关键词 离散傅里叶变换； 快速傅里叶变换； 块浮点运算； 可编程门阵列 分类号 TP39； TN957.511 Implementation of FFT with FPGA Technology Liu Zhaohui Han Yueqiu (Department of Electronics Engineering, Beijing Institute of Technology, Beijing 100081) Abstract Aim To propose a scheme for implementing FFT with FPGA in accor-dance with the requirement for high speed digital signal processing. Methods The structure of FPGA and requirement of system were considered in the experiment, radix-4 algorithm of DIT and recursive structure were adopted. The group float point arithmetic operation was used in the butterfly and the array multiplier was used to realize multiplication. Results The pipeline pattern was used to ensure the system speed, it made fetching data, calculating twiddle factor, complex multiplication and D
标签： fpga
上传时间： 2022-03-23
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以STM32F103C8T6为核心,设计了无刷直流电机控制器硬件电路。电路主要包括IR2310构成的PWM驱动电路、IRF3808构成的逆变电路、增量式旋转编码构成的速度反馈电路。控制器具有CAN和RS232通信接口,可与计算机或PLC构成速度或位置伺服系统。利用由xPC目标搭建的半实物仿真平台对PI参数进行整定。测试了控制器的速度伺服响应性能,给定速度为2400rpm时,控制器响应时间为0.32s。实验结果表明,系统工作可靠,稳定性好,响应速度快,可以满足上肢康复机器人的机械臂速度控制性能要求。The hardware circuit of Brushless DC motor controller is designed by taking STM32F103C8T6 as the core,which mainly includes PWM driving circuits made up of IR2310,inverter circuit formed by IRF3808,speed feedback circuit composed of incremental rotary encoder and so on.Speed servo control system or position servo control system can be composed of BLDM controller with computer or PLC through CAN communication interface or RS232 serial communication interface.By using the hardware in the loop simulation platform built by xPC target,the PI parameters are set up.The Speed servo response performance of the controller is tested.When the speed is 2 400 rpm,the response time of the controller is 0...
上传时间： 2022-05-07
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于无刷直流电机的驱动的基本原理，很多教材和文档都已经讲得很清楚了，特别是坛上网友提供的：《无刷直流（BLDC）电机基础》（MicroChip公司，编号AN885）、《Brushless DC Motors Made Easy》（Freescale公司，编号PZ104）和Atmel公司的编号为：AVR194、AVR491、AV R 4 9 2的几篇文档，都写得很不错，深入浅出，很适合入门的初学者学习。稍后我会给出它们的下载链接（见附录一）。不过一上来就让读者自己去看文档，貌似不太厚道，那我这里还是辛苦一下，把各篇文档的精华部分抽取出来，重新组织一下，给大家一个关于无刷电机的比较概要的认识。
标签： 直流电机
上传时间： 2022-06-07
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The information disclosed to you hereunder (the Materials ) is provided solely for the selection and use of Xilinx products. To the maximum extent permitted by applicable law: (1) Materials are made available"AS IS"and with all faults, Xilinx hereby DISCLAIMS ALL WARRANTIES AND CONDITIONS, EXPRESS, IMPLIED, OR ST ATUTORY, INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY NON-INFRINGEMENT, OR FITNESS FOR ANY PARTICULAR PURPOSE; and (2) Xilinx shall not be liable (whether in contract or tort. includina nealigence. or under anv other theorv of liabilitv) for any loss or damage of any kind or nature related to, arising under, or in connection with, the Materials (including vour use of the Materials), including for any direct, indirect, special, incidental, or consequential loss or damage (including loss of data, profits, qoodwill, or any type of loss or damage suffered as a result of anv action brought by a third party)
上传时间： 2022-06-18
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German universities and scientists have repeatedly set the intermational standard in drive technology. Identification and active compensation of natural frequencies in oscillatory mechanics, status controls with monitoring structures incorporating acceleration sensors, adaptive compensation of measurement system deficiencies, self-adjusting detent torque compensation… everything invented with only a single aim in mind: to continue improv-ing the motion control, dynamics, precision and processing speed of your machines. For the industrial applicabability of this technology scientific publications in proceedings and laboratory test rigs are not enough. These features consequenty need to be converted into cost-efficient and easily manageable products. That 's exactly what we have done.So in future, if you should need more than today ' smarket can offer you, now everything isgoing to be alright. With our new high-performance ServoOne drive series you will experi-ence
标签： servoone
上传时间： 2022-06-24
上传用户：kingwide
陀螺仪硬件自检：相关方法陀螺仪允许用户测试机械和电气部分。自检的代码在 InvenSense提供的 MotionApps™软件里面。如果没有使用 MotionApps™软件，请参阅下节(Obtaining the Gyroscope Factory Trim (FT) Value)。当自检启动，片上的电子设备就会启动相应的传感器。这次启动会使传感器的 proofmasses的距离相当于一个预定的科里奥利力（Coriolis force）。传感器的 Proof masses位移变换的结果将在输出信号中反映。输出信号用户可以在自检反馈看到。自检反馈（STR）定于如下：Self Test Response=Gyroscope Output with Self Test Enabled — Gyroscope Output with Self Test Disabled自检反馈通过反馈与出产的评估比较查找变换用于确定这部分通过还是自检失败
上传时间： 2022-07-23
上传用户：xsr1983
