基于N溝道MOS管H橋驅(qū)動(dòng)電路設(shè)計(jì)與制作
標(biāo)簽： MOS N溝道 H橋驅(qū)動(dòng) 電路設(shè)計(jì)
上傳時(shí)間： 2014-08-01
上傳用戶(hù)：1109003457
The MAX2870 ultra-wideband phase-locked loop (PLL) and voltagecontrol oscillator (VCO) can operate in both integer-N and Fractional-Nmodes, similar to the Analog Devices ADF4350 wideband synthesizer.This application note compares the MAX2870 and ADF4350 registers andloop filter design in detail. Users who already familiar with ADF4350 canuse this application note as a quick design reference.
標(biāo)簽： 寄存器 環(huán)路濾波器
上傳時(shí)間： 2014-12-23
上傳用戶(hù)：變形金剛
計(jì)數(shù)器是一種重要的時(shí)序邏輯電路，廣泛應(yīng)用于各類(lèi)數(shù)字系統(tǒng)中。介紹以集成計(jì)數(shù)器74LS161和74LS160為基礎(chǔ)，用歸零法設(shè)計(jì)N進(jìn)制計(jì)數(shù)器的原理與步驟。用此方法設(shè)計(jì)了3種36進(jìn)制計(jì)數(shù)器，并用Multisim10軟件進(jìn)行仿真。計(jì)算機(jī)仿真結(jié)果表明設(shè)計(jì)的計(jì)數(shù)器實(shí)現(xiàn)了36進(jìn)制計(jì)數(shù)的功能。基于集成計(jì)數(shù)器的N進(jìn)制計(jì)數(shù)器設(shè)計(jì)方法簡(jiǎn)單、可行，運(yùn)用Multisim 10進(jìn)行電子電路設(shè)計(jì)和仿真具有省時(shí)、低成本、高效率的優(yōu)越性。
標(biāo)簽： 歸零法 N進(jìn)制計(jì)數(shù)器原
上傳時(shí)間： 2013-10-11
上傳用戶(hù)：gtzj
在理論模型的基礎(chǔ)上探討了電子勢(shì)壘的形狀以及勢(shì)壘形狀隨外加電壓的變化, 并進(jìn)行定量計(jì)算, 得出隧穿電壓隨雜質(zhì)摻雜濃度的變化規(guī)律。所得結(jié)論與硅、鍺p-n 結(jié)實(shí)驗(yàn)數(shù)據(jù)相吻合, 證明了所建立的理論模型在定量 研究p-n 結(jié)的隧道擊穿中的合理性與實(shí)用性。該理論模型對(duì)研究一般材料或器件的隧道擊穿具有重要的借鑒意義。
上傳時(shí)間： 2013-10-31
上傳用戶(hù)：summery
Differential Nonlinearity: Ideally, any two adjacent digitalcodes correspond to output analog voltages that are exactlyone LSB apart. Differential non-linearity is a measure of theworst case deviation from the ideal 1 LSB step. For example,a DAC with a 1.5 LSB output change for a 1 LSB digital codechange exhibits 1⁄2 LSB differential non-linearity. Differentialnon-linearity may be expressed in fractional bits or as a percentageof full scale. A differential non-linearity greater than1 LSB will lead to a non-monotonic transfer function in aDAC.Gain Error (Full Scale Error): The difference between theoutput voltage (or current) with full scale input code and theideal voltage (or current) that should exist with a full scale inputcode.Gain Temperature Coefficient (Full Scale TemperatureCoefficient): Change in gain error divided by change in temperature.Usually expressed in parts per million per degreeCelsius (ppm/°C).Integral Nonlinearity (Linearity Error): Worst case deviationfrom the line between the endpoints (zero and full scale).Can be expressed as a percentage of full scale or in fractionof an LSB.LSB (Lease-Significant Bit): In a binary coded system thisis the bit that carries the smallest value or weight. Its value isthe full scale voltage (or current) divided by 2n, where n is theresolution of the converter.Monotonicity: A monotonic function has a slope whose signdoes not change. A monotonic DAC has an output thatchanges in the same direction (or remains constant) for eachincrease in the input code. the converse is true for decreasing codes.
標(biāo)簽： Converters Defini DAC
上傳時(shí)間： 2013-10-30
上傳用戶(hù)：stvnash
N+緩沖層設(shè)計(jì)對(duì)PT-IGBT器件特性的影響至關(guān)重要。文中利用Silvaco軟件對(duì)PT-IGBT的I-V特性進(jìn)行仿真。提取相同電流密度下，不同N+緩沖層摻雜濃度PT-IGBT的通態(tài)壓降，得到了通態(tài)壓降隨N+緩沖層摻雜濃度變化的曲線(xiàn)，該仿真結(jié)果與理論分析一致。對(duì)于PT-IGBT結(jié)構(gòu)，N+緩沖層濃度及厚度存在最優(yōu)值，只要合理的選取可以有效地降低通態(tài)壓降。
上傳時(shí)間： 2013-11-12
上傳用戶(hù)：thesk123
隨著我國(guó)通信、電力事業(yè)的發(fā)展，通信、電力網(wǎng)絡(luò)的規(guī)模越來(lái)越大，系統(tǒng)越來(lái)越復(fù)雜。與之相應(yīng)的對(duì)交流供電的可靠性、靈活性、智能化、免維護(hù)越來(lái)越重要。在中國(guó)通信、電力網(wǎng)絡(luò)中，傳統(tǒng)的交流供電方案是以UPS或單機(jī)式逆變器提供純凈不間斷的交流電源。由于控制技術(shù)的進(jìn)步、完善，（N+X）熱插拔模塊并聯(lián)逆變電源已經(jīng)非常成熟、可靠；在歐美的通信、電力發(fā)達(dá)的國(guó)家，各大通信運(yùn)營(yíng)商、電力供應(yīng)商、軍隊(duì)均大量應(yīng)用了這種更合理的供電方案。與其它方案相比較，（N+X）熱插拔模塊并聯(lián)逆變電源具有以下明顯的優(yōu)點(diǎn)。
標(biāo)簽： 熱插拔 模塊 并聯(lián) 應(yīng)用前景
上傳時(shí)間： 2014-03-24
上傳用戶(hù)：alan-ee
適用于51單片機(jī)的串口發(fā)n
標(biāo)簽： 51單片機(jī) 串口 字節(jié)
上傳時(shí)間： 2014-12-25
上傳用戶(hù)：qingzhuhu
89c51一種用N+1條線(xiàn)實(shí)現(xiàn)矩陣鍵盤(pán)
標(biāo)簽： 矩陣鍵盤(pán)
上傳時(shí)間： 2014-12-26
上傳用戶(hù)：lhw888
求N皇后問(wèn)題回溯算法
標(biāo)簽： 回溯算法
上傳時(shí)間： 2014-07-13
上傳用戶(hù)：yph853211
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