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
標簽： pw2202
上傳時間： 2022-02-11
上傳用戶：默默
高清電子書-C++ Primer Plus, 第6版英文版 1438頁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
標簽： C++
上傳時間： 2022-02-19
上傳用戶：trh505
基于FPGA設計的相關論文資料大全 84篇用FPGA實現FFT的研究 劉朝暉 韓月秋 摘 要 目的 針對高速數字信號處理的要求，給出了用現場可編程門陣列(FPGA)實現的 快速傅里葉變換(FFT)方案.方法 算法為按時間抽取的基4算法，采用遞歸結構的塊浮點運 算方案，蝶算過程只擴展兩個符號位以適應雷達信號處理的特點，乘法器由陣列乘法器實 現.結果 采用流水方式保證系統的速度，使取數據、計算旋轉因子、復乘、DFT等操作協 調一致，在計算、通信和存儲間取得平衡，避免了瓶頸的出現.結論 實驗表明，用FPGA 實現高速數字信號處理的算法是一個可行的方案. 關鍵詞 離散傅里葉變換； 快速傅里葉變換； 塊浮點運算； 可編程門陣列 分類號 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
標簽： fpga
上傳時間： 2022-03-23
上傳用戶：
以STM32F103C8T6為核心,設計了無刷直流電機控制器硬件電路。電路主要包括IR2310構成的PWM驅動電路、IRF3808構成的逆變電路、增量式旋轉編碼構成的速度反饋電路。控制器具有CAN和RS232通信接口,可與計算機或PLC構成速度或位置伺服系統。利用由xPC目標搭建的半實物仿真平臺對PI參數進行整定。測試了控制器的速度伺服響應性能,給定速度為2400rpm時,控制器響應時間為0.32s。實驗結果表明,系統工作可靠,穩定性好,響應速度快,可以滿足上肢康復機器人的機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...
上傳時間： 2022-05-07
上傳用戶：
于無刷直流電機的驅動的基本原理，很多教材和文檔都已經講得很清楚了，特別是壇上網友提供的：《無刷直流（BLDC）電機基礎》（MicroChip公司，編號AN885）、《Brushless DC Motors Made Easy》（Freescale公司，編號PZ104）和Atmel公司的編號為：AVR194、AVR491、AV R 4 9 2的幾篇文檔，都寫得很不錯，深入淺出，很適合入門的初學者學習。稍后我會給出它們的下載鏈接（見附錄一）。不過一上來就讓讀者自己去看文檔，貌似不太厚道，那我這里還是辛苦一下，把各篇文檔的精華部分抽取出來，重新組織一下，給大家一個關于無刷電機的比較概要的認識。
標簽： 直流電機
上傳時間： 2022-06-07
上傳用戶：
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)
上傳時間： 2022-06-18
上傳用戶：
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
標簽： servoone
上傳時間： 2022-06-24
上傳用戶：kingwide
陀螺儀硬件自檢：相關方法陀螺儀允許用戶測試機械和電氣部分。自檢的代碼在 InvenSense提供的 MotionApps?軟件里面。如果沒有使用 MotionApps?軟件，請參閱下節(Obtaining the Gyroscope Factory Trim (FT) Value)。當自檢啟動，片上的電子設備就會啟動相應的傳感器。這次啟動會使傳感器的 proofmasses的距離相當于一個預定的科里奧利力（Coriolis force）。傳感器的 Proof masses位移變換的結果將在輸出信號中反映。輸出信號用戶可以在自檢反饋看到。自檢反饋（STR）定于如下：Self Test Response=Gyroscope Output with Self Test Enabled — Gyroscope Output with Self Test Disabled自檢反饋通過反饋與出產的評估比較查找變換用于確定這部分通過還是自檢失敗
上傳時間： 2022-07-23
上傳用戶：xsr1983
