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Near-Optimal

電源供應器與數字電位器校準應用筆記

Abstract: A resistive feedback network is often used to set the output voltage of a power supply. A mechanical potentiometer (pot)conveniently solves the problem of adjusting a power supply. For easier automatic calibration, a mechanical pot can be replaced witha digital pot. This application note presents a calibration solution that uses a digital pot, because digipots are smaller, do not movewith age or vibration, and can be recalibrated remotely. This proposed solution reduces the susceptibility of the system to thetolerance of the digital pot's end-to-end resistance, making the solution optimal fordesigners. This application note also explainssome of the equations required to calculate the resistor chain values and to use a digital pot in this way. A spreadsheet withstandard reisistor values is available for easy calculations.

標簽： 電源供應器數字電位器應用筆記校準

上傳時間： 2013-10-31

上傳用戶：caiguoqing
G3-PLC技術使電動汽車智能化充電

Abstract: This article explores criteria necessary for reliable communication between electric vehicles (EVs) and electric vehicleservice equipment (EVSE). Data will demonstrate that a G3-PLC system has already met the criteria established by the automotiveand utility industries. Multiple international tests prove that a G3-PLC implementation is the optimal low-frequency solution.

標簽： PLC 電動汽車智能化充電

上傳時間： 2014-12-24

上傳用戶：逗逗666
電源調整與虛擬地

Abstract: Rail splitting is creating an artificial virtual ground as a reference voltage. It is used to set the signalto match the op amp's "sweet spot." An op amp has the most linear- and distortion-free qualities at that sweetspot. Typically, the sweet spot occurs near the center between the single power rail and ground. In the case ofa number of signals, the virtual ground can control channel DC errors when multiplexing or switching thesignals.

標簽： 電源調整虛擬地

上傳時間： 2013-10-23

上傳用戶：wushengwu
使用5V電源的高分辨率視頻解決方案

Video cable driver amplifi er output stages traditionallyrequire a supply voltage of at least 6V in order to providethe required output swing. This requirement is usuallymet with 5V supplies by adding a boost regulator or asmall local negative rail, say via the popular LT®1983-3.Such additional circuitry is unnecessary in typical 1VP-Pvideo connections, such as HD component video, if thecable driver amplifi ers simply offer near rail-to-rail outputcapability when powered from 5V.

標簽： 5V電源高分辨率視頻解決方案

上傳時間： 2013-11-16

上傳用戶：yanyangtian
電源轉換,測量和脈沖電路

This ink marks LTC’s eighth circuit collection publication.1We are continually surprised, to the point of near mystification, by these circuit amalgams seemingly limitlessappeal. Reader requests ascend rapidly upon publication,remaining high for years, even decades. All LTC circuitcollections, despite diverse content, share this popularity,although just why remains an open question. Why isit? Perhaps the form; compact, complete, succinct andinsular. Perhaps the freedom of selection without commitment,akin to window shopping.

標簽： 電源轉換測量脈沖電路

上傳時間： 2014-01-06

上傳用戶：ligi201200
無線通信網絡基本概念及設計

This white paper raises some fundamental issues the design engineer should address before deciding upon a communication approach for a wireless network. As no universal wireless network solution exists, it should be custom tailored to suit the application demands. Defining your application communication characteristics is the key to ensure optimal communication reliability and resistance to interfering noise sources.

標簽： 無線通信網絡基本概念

上傳時間： 2013-11-23

上傳用戶：zhichenglu
NFC集成方案

NNS-701 是專為移動裝置設計的全功能NFC (Near Field Communication)控制器芯片。

標簽： NFC 集成方案

上傳時間： 2013-10-11

上傳用戶：蠢蠢66
Design Safe Verilog State Machine（Synplicity）

One of the strengths of Synplify is the Finite State Machine compiler. This is a powerfulfeature that not only has the ability to automatically detect state machines in the sourcecode, and implement them with either sequential, gray, or one-hot encoding. But alsoperform a reachability analysis to determine all the states that could possibly bereached, and optimize away all states and transition logic that can not be reached.Thus, producing a highly optimal final implementation of the state machine.

標簽： Synplicity Machine Verilog Design

上傳時間： 2013-10-20

上傳用戶：蒼山觀海
模擬實現以下頁面置換算法

模擬實現以下頁面置換算法，并計算其命中率：一、理想置換算法OPT（Optimal Replacemnet）二、先進先出置換算法FIFO

標簽： 模擬頁算法

上傳時間： 2015-05-01

上傳用戶：lnnn30
這是一篇關于turbo碼的原始論文

這是一篇關于turbo碼的原始論文，Near optimum error correcting cod ing and decoding turbo codes，可供學習參考之用。

標簽： turbo 論文

上傳時間： 2014-01-24

上傳用戶：pkkkkp