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共 191 篇文章
BACK 相关的电子技术资料，包括技术文档、应用笔记、电路设计、代码示例等，共 191 篇文章，持续更新中。
于博士 Cadence16.5入门视频教程 60讲全
<p>文件较大，附件提供了百度网盘的分享地址和提取码，打开即可下载或转存。</p><p><br/></p><p>中文名: 于博士之Cadence SPB 15.7 快速入门视频教程(共60集)</p><p>英文名: Cadence SPB 15.7</p><p>发行时间: 2009年</p><p>地区: 大陆</p><p>对白语言: 普通话</p><p>文字语言: 简体中文</p><p>简介:&n
AM2355n datasheet
<p>3-phase Sensor-less Fan Motor Driver</p><p>AM2355N</p><p>The AM2355N is a 3-phase sensor-less DC fan motor driver IC. It senses the BEMF (Back</p><p>Electro-Motive Force) of the motor in rotation a
瑞萨内部培训BLDC电机120度带霍尔方波驱动
<p>Agenda</p><p>■Motor Types Overview</p><p>■BLDC Motor Applications</p><p>■Comparison of DC to Brushless DC Motors</p><p>■Hall Sensors</p><p>■Six-Step Commutation</p><p>■Sensorless Commutation with B
用择多函数实现反电动势滤波的无传感器BLDC控制.
<p>本应用笔记介绍一种采用dsPIC数字信号控制器（Digital Signal Controller，DSC）或PIC24单片机来实现无刷直流（Brushless Direct Current，BLDC）电机无传感器控制的算法。该算法利用对反电动势（Back-Electromotive Force，BEMF）进行数字滤波的择多函数来实现。通过对电机的每一相进行滤波来确定电机驱动电压换相的时刻。
使用反电动势滤波进行无传感器BLDC控制
<p>简介</p><p>本应用笔记说明了无传感器无刷直流（Brushless DC，BLDC）电机控制算法，该算法采用dsPIC数字信号控制器（digital signal controller，DSC）实现。该算法对电机每相的反电动势（back-Electromotive Force，back-</p><p>EMF）进行数字滤波，并基于滤得的反电动势信号来决定何时对电机绕组换相。这种控制技术不需
时钟芯片RX8025T
<p>RX-8801 SA Features built-in 32.768 kHz DTCXO, High Stability Supports l'C-Bus's high speed mode (400 kHz)</p><p>Alarm interrupt function for day, date, hour, and minute settings Fixed-cycl
PFC技术详解
<p>PFC基础知识-PF的定义1功率因数（Power Factor）的定义是指输入有功功率（p）和视在功率（S）的比值；线性电路功率因数可用Cos表示，为正弦电流与正弦电压的相位差；但是由于整流电路中二极管的非线性，导致输入电流为严重的非正弦波形，用cosp已不能表示整流电路的功率因数；</p><p>常规直接整流电路的滤波电容使输出电压平滑，但却使输入电流变为尖脉冲，并产生高次谐波分量。输入电流
基于TMS320F28035芯片为控制核心的空间矢量异步电机变频器
<p>基于TMS320F28035芯片为控制核心的空间矢量异步电机变频器</p><p><br/></p><p style="margin-top:0;margin-right:16px;margin-bottom: 0;margin-left:16px;margin-bottom:0;text-indent:32px"> 我们设计的异步电机变频调速器以TMS320F28035芯片为控制
cadence-allegro16.6高级教程
<p>主要內容介紹 Allegro 如何載入 Netlist，進而認識新式轉法和舊式轉法有何不同及優缺點的分析，透過本</p><p>章學習可以對 Allegro 和 Capture 之間的互動關係，同時也能體驗出 Allegro 和 Capture 同步變更屬性等強大功</p><p>能。</p><p>Netlist 是連接線路圖和 Allegro Layout 圖檔的橋樑。</p><p>在這裏所介
STM32硬件SPI驱动TFTLCD Proteus仿真实现
<p> 最近经理通知要做项目了，让我选型一个LCD开始试着做下。这是我用仿真实现的一个smt32的硬件SPI1来驱动的ST7735R，难度挺小的，因为大部分的代码LCD的厂商已经给我们提供了，我们主要修改成硬件SPI来驱动就好了。</p><p> &
基于STM32单片机控制的智能水杯设计
<p>本设计介绍了一种基于STM32单片机控制的智能水杯,可利用插口式电源或无线充电底座为加热器提供能量,并在达到某种饮品所需温度时进行保温。水杯内置充电电池,可选用USB接口或无线充电。在水杯内部设置无线模块,用户利用手机App与水杯进行匹配进行加热操作,加热完后水杯会通过手机App和液晶显示屏实时反馈液体温度,通过指示灯显示电量情况等,给用户进行提醒。该智能水杯设计创新,实用价值较高。</p>
基于DSP28335 开发板实现ecan_back2back的电路方案设计源码
<p>基于DSP28335 开发板实现ecan_back2back的电路方案设计源码基于DSP28335 开发板实现ecan_back2back的电路方案设计源码</p>
基于51单片机的RS485从机系统设计
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题目：基于<span>51</span>单片机的<span>RS485</span>从机系统设计<span></span>
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单片机接口资源配置：<span></span>
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Deep Learning---1
Inventors have long dreamed of creating machines that think. This desire dates<br />
back to at least the time of ancient Greece. The mythical figures Pygmalion,<br />
Daedalus, and Hephaestus may all
Beginning+C+for+Arduino
I can remember buying my first electronic calculator. I was teaching a graduate level statistics course and I<br />
had to have a calculator with a square root function. Back in the late 1960s, that w
Wireless Identification
We are in the era of ubiquitous computing in which the use and development of Radio Frequency Iden-<br />
tification (RFID) is becoming more widespread. RFID systems have three main components: reader
RFID+as+an+Infrastructure
RFID (radio-frequency identification) is the use of a wireless non-contact system<br />
that uses radio-frequencyelectromagnetic fields to transfer datafrom a tag attached<br />
to an object, for the
Power Over Ethernet
December 2007, San Jose, California: It seems a long time ago.<br />
I walked into a big networking company to head their small<br />
Power over Ethernet (PoE) applications team. Surprisingly,<br />
I
Digital+Home
It has been said that the move from narrowband to broadband access is the second<br />
revolution for the Internet — ‘broadband is more bandwidth than you can use’.<br />
Once users have experienced b
Wireless Networking Technology
Although the origins of radio frequency based wireless networking can be<br />
traced back to the University of Hawaii’s ALOHANET research project<br />
in the 1970s, the key events that led to wirele