mosfet并聯(lián)使用介紹了并聯(lián)使用的注意事項,特別注意避開Vgsth zero thermal coefficient以下的正溫特性設(shè)計
上傳時間: 2022-03-01
上傳用戶:bluedrops
華為AI安全白皮書2018-cn近年來,隨著海量數(shù)據(jù)的積累、計算能力的發(fā)展、機器學習方法與系統(tǒng)的持續(xù)創(chuàng)新與演進,諸如圖像識別、語音識 別、自然語言翻譯等人工智能技術(shù)得到普遍部署和廣泛應用。越來越多公司都將增大在AI的投入,將其作為業(yè)務發(fā)展 的重心。華為全球產(chǎn)業(yè)愿景預測:到2025年,全球?qū)崿F(xiàn)1000億聯(lián)接,覆蓋77%的人口;85%的企業(yè)應用將部署到 云上;智能家庭機器人將進入12%的家庭,形成千億美元的市場。 人工智能技術(shù)的發(fā)展和廣泛的商業(yè)應用充分預示著一個萬物智能的社會正在快速到來。1956年,麥卡錫、明斯基、 香農(nóng)等人提出“人工智能”概念。60年后的今天,伴隨著谷歌DeepMind開發(fā)的圍棋程序AlphaGo戰(zhàn)勝人類圍棋冠 軍,人工智能技術(shù)開始全面爆發(fā)。如今,芯片和傳感器的發(fā)展使“+智能”成為大勢所趨:交通+智能,最懂你的 路;醫(yī)療+智能,最懂你的痛;制造+智能,最懂你所需。加州大學伯克利分校的學者們認為人工智能在過去二十年 快速崛起主要歸結(jié)于如下三點原因[1]:1)海量數(shù)據(jù):隨著互聯(lián)網(wǎng)的興起,數(shù)據(jù)以語音、視頻和文字等形式快速增 長;海量數(shù)據(jù)為機器學習算法提供了充足的營養(yǎng),促使人工智能技術(shù)快速發(fā)展。2)高擴展計算機和軟件系統(tǒng):近 年來深度學習成功主要歸功于新一波的CPU集群、GPU和TPU等專用硬件和相關(guān)的軟件平臺。3)已有資源的可獲得 性:大量的開源軟件協(xié)助處理數(shù)據(jù)和支持AI相關(guān)工作,節(jié)省了大量的開發(fā)時間和費用;同時許多云服務為開發(fā)者提供 了隨時可獲取的計算和存儲資源。 在機器人、虛擬助手、自動駕駛、智能交通、智能制造、智慧城市等各個行業(yè),人工智能正朝著歷史性時刻邁進。谷 歌、微軟、亞馬遜等大公司紛紛將AI作為引領(lǐng)未來的核心發(fā)展戰(zhàn)略。2017年谷歌DeepMind升級版的AlphaGo Zero橫 空出世;它不再需要人類棋譜數(shù)據(jù),而是進行自我博弈,經(jīng)過短短3天的自我訓練就強勢打敗了AlphaGo。AlphaGo Zero能夠發(fā)現(xiàn)新知識并發(fā)展出打破常規(guī)的新策略,讓我們看到了利用人工智能技術(shù)改變?nèi)祟惷\的巨大潛能。 我們現(xiàn)在看到的只是一個開始;未來,將會是一個全聯(lián)接、超智能的世界。人工智能將為人們帶來極致的體驗,將 積極影響人們的工作和生活,帶來經(jīng)濟的繁榮與發(fā)展。
上傳時間: 2022-03-06
上傳用戶:
大家先試用一下,源碼后面奉上!!!using System;using System.Collections.Generic;using System.Configuration;using System.Data;using System.Linq;using System.Threading.Tasks;using System.Windows;namespace SerialCom{ /// <summary> /// App.xaml 的交互邏輯 /// </summary> public partial class App : Application { }}
標簽: 串口調(diào)試
上傳時間: 2022-03-25
上傳用戶:kent
隨著光伏發(fā)電系統(tǒng)快速發(fā)展,以及電動汽車充電樁的普及,傳統(tǒng)的剩余電流保護器無法滿足實際需求。介紹了一款B型剩余電流保護器,采用磁調(diào)制剩余電流互感器和零序電流互感器采集剩余電流。根據(jù)GB/T 22794—2017標準要求,可識別1 kHz及以下的正弦交流、帶和不帶直流分量的脈動直流、平滑直流等剩余電流信號。經(jīng)信號調(diào)理電路將電壓信號送到單片機進行采集和判斷。通過試驗測試,該樣機在測試精度和速度上均符合國家標準的相關(guān)要求。The rapid development of photovoltaic power generation systems and the popularity of electric vehicle charging piles make the traditional residual current protective devices unable to meet the actual demand.This paper proposed a type B residual current protective device,which uses the magnetically modulated residual current transformer and the zero sequence current transformer to acquire the residual current.According to the requirements of GB/T 22794—2017,the type B residual current protective device can detect sinusoidal AC residual current of 1kHz and below 1kHz,pulsating DC residual current with and without DC component,smooth DC residual current and so on.The signal processing circuit sends the voltage signal to the MCU for acquisition and judgment.Through experimental tests,the device meets the relevant requirements of national standards in terms of test accuracy and speed.
標簽: 電流保護器
上傳時間: 2022-03-27
上傳用戶:
針對交流電路過零檢測電路存在結(jié)構(gòu)復雜、過零點檢測不準確、編程繁瑣等問題,設(shè)計了一種基于LM339的硬件結(jié)構(gòu)簡單的過零檢測電路。通過仿真軟件Mulisim對該設(shè)計電路進行了仿真,實驗證明了該方案過零檢測的可行性、穩(wěn)定性和可靠性,可直接作為交流電路中CPU的過零信號。Aiming at the problems of AC cilsuit zero crossing detection circuit such as complex structure, zero crossing detection and cumbersome programming, a zero crossing detection circuit with simple hardware structure based on LM339 was designed. The design circuit was simulated by simulation software Mulisim, and the feasibility, stability and reliability of zero crossing detection were proved by experiments, which can be used as zero crossing signal of CPU in AC circuit directly.
上傳時間: 2022-05-03
上傳用戶:
本文提出基于AD2S1210的旋變信號轉(zhuǎn)換電路,給出了具體的電路實現(xiàn)方法和配置方法.相比以往的RDC方案,本系統(tǒng)具有精度高,設(shè)計靈活,可靠性高等特點,可廣泛應用于各種伺服系統(tǒng)中.In this paper, the switching signal conversion circuit based on ADS1210 is proposed, and the specific circuit implementation and configuration method are given. Compared with the previous RDC scheme, this system has the characteristics of high precision, flexible design and high reliability, and can be widely used in various servo systems.
標簽: ad2s1210
上傳時間: 2022-05-04
上傳用戶:
The JW? 7805 is a low noise low-dropout (LDO) voltage regulator with enable function that operates from 1.8V to 5.5V. It provides up to 300mA of output current and offers low-power operation in miniaturized packaging. JW7805 supports fixed output voltage 0.9V, 1.0V, 1.05V, 1.1V,1.2V, 1.3V, 1.35V, 1.5V, 1.8V, 1.85V, 2.1V, 2.2V, 2.3V, 2.5V, 2.6V, 2.7V, 2.8V, 2.85V, 2.9V, 3.0V,3.1V, 3.3V, 3.6V, 4.2V, 4.4V and 5.0V. The features of low quiescent current as low as 6uA and almost zero disable current are ideal for powering the battery equipment. JW7805’s low output noise and high PSRR are also friendly to RF systems.
標簽: JW7805
上傳時間: 2022-05-06
上傳用戶:slq1234567890
Chapter 1:Introduction and Overview Chapter 2:Switches,Buttons,and Knob 開關(guān)按鈕Chapter 3:Clock Sources 時鐘脈沖源Chapter 4:FPGA Configuration Options 配置Chapter 5:Character LCD Screen LCD顯示屏特性Chapter 6:VGA Display Port VGA接口——接到顯示器上Chapter 7:RS-232 Serial Ports RS-232接口——接器件Chapter 8:PS/2 Mouse/Keyboard Port PS/2鼠標鍵盤接口Chapter 9:Digital to Analog Converter(DAC)D/A接口Chapter 10:Analog Capture Circuit 模擬捕獲電路Chapter 11:Intel StrataFlash Parallel NOR Flash PROM Chapter 12:SPI Serial Flash 串行外圍接口系列閃存Chapter 13:DDR SDRAM 內(nèi)存Chapter 14:10/100 Ethernet Physical Layer Interface以太網(wǎng)物理層接口Chapter 15:Expansion Connectors 擴展接口Chapter 16:XC2C64A CoolRunner-II CPLDChapter 17:DS2432 1-Wire SHA-1 EEPROMSpartan-3E入門實驗板使設(shè)計人員能夠即時利用Spartan-3E系列的完整平臺性能。設(shè)備支持:Spartan-3E、CoolRunner-ll關(guān)鍵特性:Xilinx器件:Spartan-3E(50萬門,XC3S500E-4FG320C),CoolRunnerTM-lI與Platform Flash時鐘:50MHz晶體時鐘振蕩器存儲器:128Mbit 并行Flash,16 Mbit SPI Flash,64MByte DDR SDRAM連接器與接口:以太網(wǎng)10/100Phy,JTAG USB下載,兩個9管腳RS-232串行端口,PS/2類型鼠標/鍵盤端口,帶按鈕的旋轉(zhuǎn)編碼器,四個滑動開關(guān),八個單獨的LED輸出
標簽: Spartan-3E
上傳時間: 2022-06-19
上傳用戶:kingwide
S32K148 T-BOX快速入門CONTENTS:? Get to know the S32K148 T-BOX Reference Design Board (RDB)? S32K148 T-BOX RDB out-of-the-box setup? Creating a new S32DS project for the S32K1xx MCU? S32DS debugging basics? Create a P&E debug configuration
上傳時間: 2022-06-20
上傳用戶:jiabin
PIC XC8 V1.41 PRO版,編譯器破解文件,將附件文件覆蓋編譯器bin目錄下原文件即可。你懂的。。。。。。。編譯前把編譯選項的Free改成PRO和諧文件在MPLAB X IDE v5.00版本測試成功清除已成功 (總時間: 10ms)make -f nbproject/Makefile-default.mk SUBPROJECTS= .build-confmake -f nbproject/Makefile-default.mk dist/default/production/KEY_V1.X.production.hexMicrochip MPLAB XC8 C Compiler (PRO Mode) V1.41Build date: Jan 24 2017Part Support Version: 1.41Copyright (C) 2017 Microchip Technology Inc.Memory Summary: Program space used 2A9h ( 681) of 1000h words ( 16.6%) Data space used 4Dh ( 77) of 100h bytes ( 30.1%) EEPROM space used 0h ( 0) of 100h bytes ( 0.0%) Data stack space used 0h ( 0) of AEh bytes ( 0.0%) Configuration bits used 2h ( 2) of 2h words (100.0%) ID Location space used 0h ( 0) of 4h bytes ( 0.0%)編譯已成功 (總時間: 2s)正在加載代碼...加載完成
標簽: XC8
上傳時間: 2022-06-21
上傳用戶:
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