在電源設(shè)計(jì)中,工程人員時(shí)常會(huì)面臨控制 IC 驅(qū)動(dòng)電流不足的問(wèn)題,或者因?yàn)殚l極驅(qū)動(dòng)損耗導(dǎo)致控制 IC 功耗過(guò)大。為解決這些問(wèn)題,工程人員通常會(huì)採(cǎi)用外部驅(qū)動(dòng)器。目前許多半導(dǎo)體廠商都有現(xiàn)成的 MOSFET 積體電路驅(qū)動(dòng)器解決方案,但因?yàn)槌杀究剂浚こ處熗鶗?huì)選擇比較低價(jià)的獨(dú)立元件。
上傳時(shí)間: 2013-11-19
上傳用戶:阿譚電器工作室
具備處理外部模擬信號(hào)功能是很多電子設(shè)備的基本要求。為了將模擬信號(hào)轉(zhuǎn)換為數(shù)字信 號(hào),就需要藉助A/D 轉(zhuǎn)換器。將A/D 功能和MCU 整合在一起,就可減少電路的元件數(shù)量和 電路板的空間使用。 HT45F23 微控制器內(nèi)建6 通道,12 位解析度的A/D 轉(zhuǎn)換器。在本應(yīng)用說(shuō)明中,將介紹如何 使用HT45F23 微控制器的A/D 功能。
上傳時(shí)間: 2013-10-27
上傳用戶:nostopper
Single-Ended and Differential S-Parameters Differential circuits have been important incommunication systems for many years. In the past,differential communication circuits operated at lowfrequencies, where they could be designed andanalyzed using lumped-element models andtechniques. With the frequency of operationincreasing beyond 1GHz, and above 1Gbps fordigital communications, this lumped-elementapproach is no longer valid, because the physicalsize of the circuit approaches the size of awavelength.Distributed models and analysis techniques are nowused instead of lumped-element techniques.Scattering parameters, or S-parameters, have beendeveloped for this purpose [1]. These S-parametersare defined for single-ended networks. S-parameterscan be used to describe differential networks, but astrict definition was not developed until Bockelmanand others addressed this issue [2]. Bockelman’swork also included a study on how to adapt single-ended S-parameters for use with differential circuits[2]. This adaptation, called “mixed-mode S-parameters,” addresses differential and common-mode operation, as well as the conversion betweenthe two modes of operation.This application note will explain the use of single-ended and mixed-mode S-parameters, and the basicconcepts of microwave measurement calibration.
上傳時(shí)間: 2014-03-25
上傳用戶:yyyyyyyyyy
一個(gè)LCD燈的小程序。不是我寫(xiě)的。我只負(fù)責(zé)了調(diào)試。適用在ACEXEP1K30QC208-3上。我跑了SIMULATOR,管腳連接標(biāo)示了。我也下在電路板上試過(guò)了,沒(méi)有問(wèn)題。要用到實(shí)驗(yàn)板上的兄弟們把CLK1改到TESTOUT3或者0就好了。綫幫助新手,人人有責(zé)。
標(biāo)簽: SIMULATOR ACEXEP LCD 208
上傳時(shí)間: 2015-04-10
上傳用戶:330402686
這程式是用J2ME撰寫(xiě)而成,裡面所放置的jar檔經(jīng)過(guò)手機(jī)測(cè)試,可以利用手機(jī)的藍(lán)芽功能搜尋連接到有支援藍(lán)芽的電腦,由手機(jī)取得電腦的資料。
上傳時(shí)間: 2014-12-03
上傳用戶:guanliya
這是一本介紹8051的好書(shū),看了這本書(shū)能對(duì)8051有所了解,本書(shū)有介紹指令、timer、interrup、uart幾乎是8051基本的功能都有說(shuō)明,另外本書(shū)也有應(yīng)用電路能讓讀者了解8051。
標(biāo)簽: 8051
上傳時(shí)間: 2013-12-27
上傳用戶:cmc_68289287
用AVR實(shí)現(xiàn)軟USB轉(zhuǎn)RS232的全部資料,包含源碼與電路解
上傳時(shí)間: 2014-11-23
上傳用戶:tonyshao
altera Quartus II 減法器使用 配合LED,可自動(dòng)與手動(dòng)按鈕控製。 (含電路)
標(biāo)簽: Quartus altera LED II
上傳時(shí)間: 2013-12-13
上傳用戶:王楚楚
altera Quartus II FSM使用 可設(shè)定時(shí)間波形,手動(dòng)調(diào)整波形頻率。 (含電路)
標(biāo)簽: Quartus altera FSM II
上傳時(shí)間: 2016-02-13
上傳用戶:kbnswdifs
altera Quartus II TLC晶片控制 可控制暫存器,手動(dòng)調(diào)整內(nèi)碼。 (含電路)
標(biāo)簽: Quartus altera TLC 控制
上傳時(shí)間: 2016-02-13
上傳用戶:Zxcvbnm
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