模變換電路 的英文怎麼說
中文拼音 [móbiànhuàndiànlù]
模變換電路
英文
mode transducer circuit- 模 : 模名詞1. (模子) mould; pattern; matrix 2. (姓氏) a surname
- 換 : 動詞1. (給人東西同時從他那裡取得別的東西) exchange; barter; trade 2. (變換; 更換) change 3. (兌換) exchange; cash
- 電 : Ⅰ名詞1 (有電荷存在和電荷變化的現象) electricity 2 (電報) telegram; cable Ⅱ動詞1 (觸電) give...
- 路 : 1 (道路) road; way; path 2 (路程) journey; distance 3 (途徑; 門路) way; means 4 (條理) se...
- 電路 : [訊] circuit (ckt); electric circuit; electrocircuit電路板 circuit board; 電路保持 guard of a c...
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A method of the equivalent circuit conversion inanalog electric technology teaching
模電教學中的等效電路變換法Using domestic strained integrated resistor as weighing sensor, at89c52 single chip as control unit, combined with arithmetical magnification, analogtodigital conversion ( a / d ), real time clock, liquid crystal display ( lcd ), and series communication interface, a minitype automatic weighing lysimeter is developed. that made measurement of evapotranspiration become conveniently and effectively in studying on water use of crops
為了方便、有效地測定植物的蒸散,為水分利用研究提供價廉物美、簡單易用的儀器,本研究利用國產的集成電阻應變式稱重傳感器,採用at89c52單片機作為控制單元,結合運算放大、模數轉換、實時時鐘、液晶顯示、數據存儲、串列通信等外圍介面電路,研製了小型自動稱重式蒸散儀。Based on the thorough investigation of the post - regulation and efficiency in multiple output switching - mode power supplies, an optimal combination topology for multiple output switching converter is presented in this thesis, which is consisted of forward converter with active clamp ( fac ), synchronous rectification ( sr ) techniques and magnetic amplifier technique ( magamp )
本文通過研究分析近年來多路輸出開關電源輔助輸出電壓調節和提高效率的方案,面對開關電源朝著輸出低電壓大電流方向發展的趨勢,提出多路輸出開關電源新的拓撲優化組合模式? ?有源鉗位正激變換器、同步整流技術、磁放大器。Sensitive element is one of the important to measure the concentration of mathane, and it " s export is a little voltage signal, little signal amplify circuit is to transform the analogue signal to digital signal, display circuit is to display the concentration of mathane, monitoring circuit is to monitor the overstep limit of mathane concentration. the feature is new design, accurately measure parameter, convenient to operate and so on
其中cpu是監控儀的核心,完成數據採集、處理、輸出、顯示等功能;敏感元件是準確檢測甲烷氣體含量的主要元件之一,其輸出是與甲烷濃度相對應的電壓信號;小信號放大電路則是用來放大敏感元件輸出的電壓信號; a d轉換電路把放大了的電壓信號由模擬信號變為數字信號送入cpu ;顯示電路則顯示實時甲烷濃度;報警電路對超限甲烷濃度進行報警。The thesis analyses the problems on the noise of apd photoelectric receiving system. author designs apd laser signal receiving system circuits, front amplify circuit, controlling time - series logic circuits, dc / dc transform circuits. and takes apd bias voltage fuzzy control
分析了apd光電接收系統的噪聲問題,並對apd激光信號接收系統電路、前置放大電路、控制時序邏輯電路、 dc / dc變換電路進行了設計,採取了apd偏壓模糊控制。This paper put forward a method of using amending sine value in the spwm sine table. this method can correct the distortion of the output voltage waveform, which resulted from the dead time used to the voltage type whole bridge main circuit. the inverter system adopts digital fuzzy controller with feed forward correction and which proportion coefficient and integral coefficient is changeable, so dynamic response is improved
本文提出了一種採用修補spwm正弦表值的方法,用以改善電壓型全橋逆變主電路因上下橋的功率器件切換時先關斷后導通的死區時間而引起的輸出電壓波形畸變;逆變系統採用帶前饋校正的變比例變積分系數的模糊控制器,提高了系統的動態響應指標;系統設計了完善的保護措施,並具有市電電網的故障診斷功能。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。According to step - response experiment, math model of the hotplate was set up and the temperature of controlling system including temperature detection circuit, pd controller, voltage pulse - wide transforming circuit and executor was designed
以階躍響應實驗為基礎,初步建立起控制系統的數學模型,設計了適用於該電熱板的閉環溫度控制系統。系統主要包括溫度檢測電路、 pd控制器、電壓-脈寬變換電路及執行元件。The improvement can also be used to correct total differencial and integral errors caused by pre - amplifier, linear amplifier, shaping circuit, peak stretcher and holder as well as adc at the same time
這種方法也可校正由前置放大器、線性放大器、成形電路、峰展寬電路和模數變換電路等共同造成的微分非線性和積分非線性。Aiming at the effects of distributed capacitance on accurate fault location, a new method based on the distributed parameter model, where the two - terminal data of the transmission lines are utilized, is proposed
摘要基於線路的分佈參數模型,並且利用線路兩端工頻電氣量和相模變換,提出了在模域中進行故障測距的演算法。In the paper, a high power switch supply is developed using phase - shifted full - bridge zvs pwm dc / dc converter circuit and the current - sharing circuit is designed for parallel operation of multi - module
論文採用移相全橋zvspwmdc dc變換電路研製了大功率開關電源,並設計出多個電源模塊並聯運行時的均流電路。In the course of design, we fully consider the actual conditions on the railway and take a series of corresponding measures to the concrete problem. such as we select high - accuracy microconvertor and have the converted function in succession data collecting system chip aduc812, design v / f circuit and external a / d circuit. in anti - interference of the hardware, we try to disperse each function module to avoid interfering each other, adopt photoelectric isolated technology to dispel the circuit connection of input and output. in controlling we import arithmetic mean into strain wave algorithm and real computing technology of virtual value for sample treatment of data, that is using the software to smooth away interfere error and to calculate actual value, thus it makes the precision of the data improve greatly
在設計過程中,根據系統要求,充分考慮鐵路上的實際情況,針對具體問題採取了一系列的相應措施,如在器件選擇方面選用高精度microconvertor系列、具有adcdma連續轉換功能的數據採集微控制器晶元aduc812 ,設計了v f變換電路和外部a d轉換電路;在硬體抗干擾方面,將每個功能模塊盡量分散獨立開來以避免相互干擾、採用光電隔離技術消除輸入輸出通道上的電路聯系;在控制方面對于采樣數據的處理引入了算術平均值濾波演算法和真有效值的計算方法,即通過使用軟體來濾除系統中有干擾造成的誤差並計算真值,從而使數據的準確性得到極大地提高。In this thesis, the principle of polarized light wave transmit in optical fiber is researched, i. e. principle of ternary optical fiber communication is researched. based on the researches, the construction of ternary codes optical end machine and 3b2t optical end machine used in two - state fiber net are designed. the construction and component of circuits in 3b2t optical ( called sign converter circuit - scc ) are designed particularly, including : the clock synchronization module, the data synchronizing, code converting module, frame managing module and error exam and managing module
本文研究了線偏光波動理論以及在光纖中的傳輸原理,研究了三值光通信系統原理和器件原理;在此基礎上,設計了三值光端機和在現有兩值光纖網中實現三值光通信的3b2t三值光端機的組成結構,詳細設計了3b2t三值光端機的電路組成部分(稱為電信號變換電路scc ) ,包括:時鐘同步模塊、數據同步模塊、碼元變換模塊、幀處理模塊及差錯檢測和處理模塊;而且在三值光纖通信基礎上,提出了四值光通信的原理和偏分復用的實用化方法。Chapter four ( research on chaos control in pwm dc / dc converters ) first introduces the research background, purpose and physics mechanism of chaos control, as well as some basic problems which are worth attention in the design of chaos control system. secondly, the author discusses the basic principle of ogy method and problems that are worth attention in the circuit experiment. finally, based on modem control theory and ogy method, the author puts forward some chaos control schemes, conducts emulation and circuit experiment, and proves the feasibility of chaos control in dc / dc converters
第四章( pwm型dc dc變換器中混沌控制的研究)首先介紹了混沌控制的研究背景、混沌控制的目標與物理機理以及混沌控制系統設計中要注意的基本問題;其次,討論了ogy法的基本原理以及在電路實現中要注意的問題;最後,基於現代控制理論和ogy法,提出了幾種適合於dc dc變換器的混沌控制方法,進行了模擬與電路實驗,證實了dc dc變換器中混沌控制的可行性。The paper proposes a new kind of continuous wavelet transform and processing circuits where the wavelet transform is fulfilled by demodulation process. we analyze its primary circuits, and its pspice simulations indicate a wide dynamic range employed by low - voltage and low - power
文中詳細探討了一維連續小波變換的對數域電路的實現方式,提出了一個利用復解調技術的小波變換電路,利用pspice軟體對其中的主要模塊進行了分析和模擬。Hardware design, the main part of tlle system, stresses the signal regulating methods such as signal amplification, channel choice and am transformation as we1l as the measure of usual parameters such as ac & dc electric parameters, contact resistance, time, temperature and practical signal transform circuit, etc. furthermore, the anticipated functions have been proved by practical use
其中硬體部分主要側重於信號調理即信號的放大、通道選擇、模數轉換以及各測試量包括直流電參數、交流電參數、接觸電阻、時間以及溫度的測試方法以及具體的信號變換電路,並以生產出實際產品的方式驗證了結果。It is found that when the switch s is on, the capacity charges too fast is the main reason why generating chaos in the circuit. then based on above analysis, we present the method of using output voltage pulse differential feedback to control chaos in the buck converter. theoretical analysis, numerical calculation and circuit simulation demonstrate the validity of this chaos control method
首先研究了脈寬調制式的buck變換器中混沌產生的原因,研究發現開關s導通時,電容充電過快是這類電路中混沌產生的主要原因,在此基礎上提出了應用脈沖微分反饋控制buck變換器的混沌,並設計了控制電路,數值模擬和電路模擬的結果證實了該混沌控制方法的有效性。Variable structure control with sliding mode ( vscsm ) has the peculiarity such as reduced order, better robustness and quickly response and it has been broadly used in the field of control with the development of computer technology and the produce of high - speed switch circuit, but it is few applied to complex process systems
滑模變結構控制具有降階、魯棒性強、響應快等特點,隨著計算機技術的發展和高速切換電路的產生,滑模控制理論目前在控制領域得到了廣泛應用,但是在復雜過程式控制制系統中的應用不多。Dc / dc transfer, high efficient and less noise, meet the different voltage and current need by each module. the mts use isolated dc / dc module to provide power for dilapidation detectors, avoiding lightning strike
Dc dc轉換採用了高效率、低噪聲的dc dc變換電路滿足各模塊的電壓和電流需要;終端採用了隔離dc dc模塊為崩塌傳感器提供電源,防止雷擊對終端其它模塊的影響。The development of microprocessor provides a new method for switching mode power supply control - digital control. digital control has many advantages such as repeatability, durability, adaptability and so on
微電子集成技術的發展為電力電子控制技術提供了新的思路,由六十年代的分立元件發展到后來的集成電路、大規模集成電路、微處理器等,為功率變換的控制帶來了極大的方便。分享友人