虫虫首页|资源下载|资源专辑|精品软件
登录|注册

Wi-Fi

Wi-Fi(发音:/ˈwaɪfaɪ/,法语发音:/wifi/),在中文里又称作“移动热点”,是Wi-Fi联盟制造商的商标作为产品的品牌认证,是一个创建于IEEE802.11标准的无线局域网技术。基于两套系统的密切相关,也常有人把Wi-Fi当做IEEE802.11标准的同义术语。“Wi-Fi”常被写成“WiFi”或“Wifi”,但是它们并没有被Wi-Fi联盟认可。
  • 全对称互补场效应管Hi-Fi功率放大器

    该文档为全对称互补场效应管Hi-Fi功率放大器概述资料,讲解的还不错,感兴趣的可以下载看看…………………………

    标签: 放大器

    上传时间: 2021-10-17

    上传用户:moh2000

  • stbc_ofdm(time)

    从时域分析比较了ofdm和stbc与ofdm结合的性能差别-from time-domain analysis and comparison of OFDM stbc OFDM combined wi

    标签: stbc_ofdm time

    上传时间: 2013-06-05

    上传用户:caozhizhi

  • WinCE程序设计

    Windows CE程序设计,北京大学出版社,[美]Douglas Boling 著。全书的内容主要包括Windows编程基础(HelloWindowsCE、屏幕绘图、输入:键盘、输入笔和菜单、窗口、控件和对话框)、Wi ndows CE 基础(通用控件和WindowsCE、内存管理、文件、数据库和注册表、进程与线程)、通信(串行通信、Windows网络和IrSock、连接到桌面)、高级主题(外壳编程、系统编程、COM基础)。

    标签: WinCE 程序设计

    上传时间: 2013-07-15

    上传用户:kennyplds

  • allegro manual.

    allegro manual. ad dkjfa wi di akjf kjdfi dfjia kdjfid kjdsi djfdis.

    标签: allegro manual

    上传时间: 2013-09-06

    上传用户:star_in_rain

  • 利用纤巧型负载点电路来简化电源电压的跟踪和排序

      Multiple-voltage electronics systems often requirecomplex supply voltage tracking or sequencing, whichif not met, can result in system faults or even permanentfailures in the fi eld. The design diffi culties in meetingthese requirements are often compounded in distributedpowerarchitectures where point-of-load (POL) DC/DCconverters or linear regulators are scattered across PCboard space, sometimes on different board planes. Theproblem is that power supply circuitry is often the lastcircuitry to be designed into the board, and it must beshoehorned into whatever little board real estate is left.Often, a simple, drop-in, fl exible solution is needed tomeet these requirements.

    标签: 负载点电路 电源电压 排序

    上传时间: 2013-10-07

    上传用户:15071087253

  • 多相DC/DC控制器精度和带宽限制

      Speed and accuracy don’t always go hand-in-handin DC/DC converter systems—that is, until now. TheLTC3811 is a dual output, fi xed frequency current modeDC/DC switching regulator controller designed for one oftoday’s most demanding power supply applications: highcurrent, low voltage processor core supplies.

    标签: DC 多相 控制器 带宽

    上传时间: 2013-11-20

    上传用户:aix008

  • GPON系统的APD偏置解决方案

      Avalanche photo diode (APD) receiver modules arewidely used in fi ber optic communication systems. AnAPD module contains the APD and a signal conditioningamplifi er, but is not completely self contained. It stillrequires signifi cant support circuitry including a highvoltage, low noise power supply and a precision currentmonitor to indicate the signal strength. The challenge issqueezing this support circuitry into applications withlimited board space. The LT®3482 addresses this challengeby integrating a monolithic DC/DC step-up converter andan accurate current monitor. The LT3482 can supportup to a 90V APD bias voltage, and the current monitorprovides better than 10% accuracy over four decades ofdynamic range (250nA to 2.5mA).

    标签: GPON APD 方案

    上传时间: 2014-01-18

    上传用户:wenyuoo

  • 运用LT3092电流源以高线性度来实现温度至电流转换

      One of the fi rst lessons in a basic electronics coursecovers the symbols for resistors, capacitors, inductors,voltage sources and current sources. Althougheach symbol represents a functional component of areal-world circuit, only some of the symbols have directphysical counterparts. For instance, the three discretepassive devices—resistors, capacitors, inductors—canbe picked off a shelf and placed on a real board muchas their symbolic analogs appear in a basic schematic.Likewise, while voltage sources have no direct 2-terminalanalog, a voltage source can be easily built with an offthe-shelf linear regulator.

    标签: 3092 LT 电流源 温度

    上传时间: 2013-11-24

    上传用户:simonpeng

  • 高电压,低噪音,DCDC转换器

      Photomultipliers (PMT), avalanche photodiodes (APD),ultrasonic transducers, capacitance microphones, radiationdetectors and similar devices require high voltage,low current bias. Additionally, the high voltage must bepristinely free of noise; well under a millivolt is a commonrequirement with a few hundred microvolts sometimesnecessary. Normally, switching regulator confi gurationscannot achieve this performance level without employingspecial techniques. One aid to achieving low noise is thatload currents rarely exceed 5mA. This freedom permitsoutput fi ltering methods that are usually impractical

    标签: DCDC 高电压 低噪音 转换器

    上传时间: 2013-10-28

    上传用户:lhw888

  • DUAL RS-232 DRIVER RECEIVER WI

    The TRS232E is a dual driver/receiver that includes a capacitive voltage generator to supply TIA/RS-232-Fvoltage levels from a single 5-V supply. Each receiver converts TIA/RS-232-F inputs to 5-V TTL/CMOS levels.This receiver has a typical threshold of 1.3 V, a typical hysteresis of 0.5 V, and can accept ±30-V inputs. Eachdriver converts TTL/CMOS input levels into TIA/RS-232-F levels. The driver, receiver, and voltage-generatorfunctions are available as cells in the Texas Instruments LinASIC™ library.

    标签: RECEIVER DRIVER DUAL 232

    上传时间: 2013-10-07

    上传用户:waitingfy