數模變換器 的英文怎麼說
中文拼音 [shǔmóbiànhuànqì]
數模變換器
英文
d/a converter-
The principles and the characteristics of digital control method in phase - shift full - bridge converter are discussed. the small - signal model are built
本文詳細論述了全橋移相zvspwmdc - dc變換器數字控制的實現方法，建立了其數字控制閉環小信號模型。Aimed at design index of input power 1. 5kw, most output rotate velocity 300rpm, and rating output rotate velocity 150rpm, considering factors of angle and ratio of transmission, on the basis of kinematics simulation, author optimized the kinematics parameters. in this paper, author has made some analysis and study to the primal assembly condition of transformer ' s sequential action in theory, designed structure dimension of the input and output transformer, and verified the corresponding strengthen. further, the structure, which is to key transmission components of velocity control system of the speed regulator, has been designed based on meeting operational sensitivity, precision and self - locking
本文針對輸入功率為1 . 5kw ，最大輸出轉速，額定輸出轉速的無級變速器的設計要求，並考慮到傳動角及變速比等因素，在運動學模擬的基礎上，對運動學參數進行了優化；本文對變換器連續作用的初始裝配條件進行了理論分析與研究，對輸入、輸出變換器作了結構尺寸的設計，並進行了強度校核計算；本文還對變速器調速系統中主要傳動構件在滿足操作的靈敏度、精度、自鎖性的基礎上進行了結構設計；最後採用workingmodel3d軟體，進行虛擬樣機的計算機輔助模擬設計及運動學和動力學計算。The thesis discussed a parameter extraction program for the mosfet level1 model. in the analysis and design of circuit, at first, the thesis described the system function of the new dc - dc switching converter. then several sub - circuits of converter ic such as oscillator, over - temperature shutdown circuit, auto - restart counter circuit and control circuit were completely discussed
在電路設計中，本文首先分析了開關電源電路的基本拓撲結構和psm調制模式，接著對開關電源變換器進行了系統的原理分析並設計了總體框圖，然後詳細設計了振蕩器電路，熱保護電路，自動重啟計數器電路和主控門邏輯等子電路並進行了功能模擬。Ogy method is applied to control the chaos exhibited by current - mode controlled boost dc - dc converter, as its chaotic regime has been established in this paper
本文還使用參數微擾方法控制電流控制模式boost變換器在連續電流模式下產生的混沌行為。Switch states of mc are obtained when the output voltage error function is minimized, thus the optimum combination of switch states is derived for the closed - loop control of mc
根據最小誤差函數確定矩陣變換器開關模式，實現了系統閉環控制時開關狀態的優化組合。The operating principle of the converter is analyzed, and the design procedures of the main circuit and control circuit are presented. the loss of the converter is discussed including power devices, rectifier diode, magnetic components and etc., and the mathematic model of loss distribution and theoretical efficiency are obtained by means of mathcad
本文還對變換器的損耗進行了詳細分析，包括開關管、快恢復二極體、變壓器和電感等元器件的損耗機理及其損耗計算方法，並用數學軟體mathcad建立了損耗的數學模型，給出了損耗分佈情況及變換器效率。Chaos in three typical topology power electronic converters with a close loop controller is studied. the discrete iterative model is established and analyzed for the chaos in close loop boost converter working in discontinuous conduct mode. the tracking control method is used to control chaos of this converter, simulation results show its effectiveness
研究了三種典型拓撲結構的電力電子變換器閉環工作時的混沌現象，針對工作在電流斷續模式（ dcm ）下的boost變換器中的混沌現象，分析了其數學模型，並採用軌跡跟蹤控制方法進行了控制，模擬結果表明了該方法的有效性。The topologies family include single four - quadrant power switch mode, push - pull mode, half - bridge mode, and full - bridge mode circuits. taking full - bridge mode circuit as an example, the operational mode, steady principles, transient voltage feedback control strategy of the converter are investigated. the output characteristic curve, the design for the key circuit parameters and the reference sinusoidal circuit which is synchronous with the signal of n or 1 / n times line voltage frequency are given
該電路拓撲族包括單四象限功率開關式、推挽式、半橋式、全橋式電路，以全橋式電路為例分析研究了這類換器工作模式、穩態原理與電壓瞬時值反饋控制策略，給出了變換器的外特性曲線、關鍵電路參數、與電網電壓n倍頻或n分頻信號同步的基準正弦電路的設計。This product is a full electron construction in which its front - end adopts pressure sensor with baffle filled oil chip. output signal is sent the data to microprocessor from high - precision, low temperature drift and high - reliability amplification circuit and a d convert circuit, after operating, to transform by high - precision d a convert circuit into standard signal output
該產品為全電子結構，前端採用帶隔離膜充油芯體的壓力傳感器，輸出信號由高精度低溫漂和高可靠性的放大電路和模數轉換電路將數據送入微處理器，經運算後由高精度數模轉換電路變換為標準信號輸出。Electrical measuring tranducers for converting a. c. electrical quantities to analogue or digital signals
交流電量轉換成模擬信號或數字信號用電氣測量變換器Electrical measuring transducers for converting a. c. electrical quantities to analogue or digital signals
交流電量轉換成模擬信號或數字信號用的電氣測量變換器Electrical measuring transducers for converting a. c. electrical quantities to analogue or digital signals ; amendment 1
交流電量轉換成模擬信號或數字信號用的電氣測量變換器.修改件1Electrical measuring transducers for converting a. c. electrical quantities to analogue or digital signals ; amendment 2
交流電量轉換成模擬信號或數字信號用的電氣測量變換器.修改件2The first successful industrial application of absorption heat transformer ( aht ) has been put into practice in yanshan petrochemical corporation in china. on the background of this engineering, the thesis sets up the methods of absorber ' s enhanced heat and mass transfer, process simulation and finite time thermodynamics analysis. the main research work is followed as : 1
本論文以北京燕山石化公司上的國內第一套吸收式熱變換器（ aht ）系統為工程背景和研究對象，建立了包括吸收器強化傳熱傳質、過程模擬和有限時間熱力學在內的分析手段，並在此基礎上開發出了模擬優化軟體ass ，最後利用工廠的實測數據對軟體的計算結果進行了測試和對比，具體工作： 1With promulgation and obliging actualization of iec 1000 - 3 - 2 etc. international standards, power factor correction ( pfc ) technique become a hotspot of research in power electronics field. based on average current mode, the paper introduce the design and implementation of a fully digital controlled single - phase boost power factor corrector with fast response. the control - loop circuit is realized using digital control and the corrector can tend to unity power factor, lower current harmonics and high transfer efficiency
本文在平均電流模式控制的有源功率因數校正技術的基礎上，設計了一種控制電路基於數字信號處理器（ dsp ） 、主電路採用boost變換器拓撲結構的全數字單相功率因數校正器，用數字電路代替傳統的模擬電路來實現對整個迴路的控制，最終使得校正器具有輸入功率因數接近於1 、低電流諧波以及高轉換效率的特性。And power loss analysis of srs and the layout design related to srs are very important to the proper design. with a small signal mathematic model of half - bridge converter, the relationship between performance of power supply and frequency domain characteristics of the system is analyzed. based on the above study and some simulation the system design is completed
文中在給出了結合單繞組自驅動方案的對稱半橋變換器穩態原理分析、同步整流管損耗分析暨選擇原則、同步整流管相關電路的布局設計后，建立了對稱半橋變換器的小信號數學模型，分析了電源系統時域性能指標與頻域特性之間的聯系，在此基礎上完成了系統的設計。According to the research of the converter s transient operation, the thesis presents the design of the resonant parameters and the dead - time setting range of the converters lead leg and lag leg, and i is confirmed by simulation
論文在對變換器暫態工作過程研究的基礎上，給出了軟開關諧振參數設計和變換器超前橋臂、滯后橋臂的死區時間設置范圍，模擬驗證了設計的有效。Based on the difference of measuring errors between spectrum and a single pulse, the article introduces a procedure which can improve the specification of non - linearity of commercial adc for spectrum measurement without channel - width - everaging circuit
摘要根據放射性能譜測量的誤差並不等於對單個脈沖測量的誤差的特點，提出一種先測出模數變換器的道寬，然後利用軟體方法進行道寬均勻的技術。With the software cadence, model establishment and parasitic parameter extraction are made on the main pcb lines of the proposed circuits. equivalent circuit models of common mode combined with differential mode current and noise simulation models are also established on full bridge switching - mode converters. study on the simulation of conducted interference noise is made with the software saber and the effects on the circuits " noise by the main parasitic parameters are also analyzed
在對全橋開關型變換器電路工作原理分析的基礎上，建立了全橋開關型變換器主要元器件的電磁干擾參數模型，利用cadence軟體對其pcb主要印製導線進行了建模分析和寄生參數的提取，得到了全橋開關型變換器傳導干擾的共模、差模噪聲電流等效電路模型以及噪聲模擬模型，並運用saber軟體進行了傳導性干擾噪聲的模擬研究，分析了主要寄生參數對電路噪聲的影響。Then on the basis of those, a model of software radio receiver is given. operations are determined using hardware whose configuration is under software control. finally, the circuits are realized with simulation in order to prove the discussed schemes
然後建立了軟體無線電接收機的數學模型，盡可能的簡化射頻模擬前端，將模數數模變換器盡量靠近天線，在對信號充分數字化的基礎上依靠軟體來定義無線電的各項功能。分享友人