switched capacitor 中文意思是什麼
switched capacitor
解釋
交換電容-
Curve fitting in switched capacitor networks using least square estimation
開關電容網路頻域的最小二乘曲線擬合 -
The three - order modulator has a 2 - 1 cascaded structure and 1 - bit quantizer at the end of each stage, the modulator is implemented with fully differential switched - capacitor circuits. and then, the discussion will begin by exploring the design of various circuit blocks in the modulator in more detail, i. e., ota, switched - capacitor integrator, quantizer, two - phase non - overlapping clock signal, etc., at the same time, these circuits will be simulated in spectre and hspice. at last, the whole cascaded modulator will do behavioral level simulation by matlab soft and simulink toolbox
本論文中，首先介紹模數轉換器的各種參數的意義，以及一階sigma - delta調制器和高階sigma - delta調制器的原理;給出解決高階單環sigma - delta調制器不穩定性的方案，引入級聯結構調制器，特別針對級聯結構調制器中的失配和開關電容積分器的非理想特性進行詳細的討論;本設計的sigma - delta調制器採用2 - 1級聯結構和一位量化器，調制器採用全差分開關電容電路實現;同時對整個調制器的各個模塊進行了電路設計，包括跨導放大器、開關電容積分器、量化器、兩相非交疊時鐘等，並利用hspice和spectre模擬工具對這些電路進行模擬測試;最後，利用matlab軟體和simulink工具對整個級聯調制器進行行為級模擬。 -
The design of the switched capacitor filter is one of the research focuses in circuit and system
開關電容濾波器設計是電路與系統領域里的研究熱點之一。 -
Furthermore, on the basis of adopting pzt ( lead zirconium titanate ) as the switched - capacitor dielectric, the output current of a single circuit unit is eight times as large as that of the former single circuit unit with identical technology process parameters
針對採用鋯鈦酸鉛鐵電薄膜（ pzt ）作為開關電容介質的設想，在工藝參數不變的情況下，計算機模擬結果表明，其單個單元電路輸出電流可提高7倍。 -
The paper first reviews the research background and actuality of the filter " s design in china and other country, introduces the meaning of the project and the work of the paper, narrates the theory of the switched - capacitor network and the basic switch building blocks, analyses the related factors of the design of sc filter. such as the selection of the architecture, the trade off of the opamp " s gain, bandwidth, phase margin, slew rate and setting time, the effect of the switch " s on resistor, how to reduce the charge injection and the clock feed - through, the power consumption and the selection of the sampling frequency and so on
本文首先回顧了濾波器設計的國內外研究背景和現狀，介紹了本課題提出的意義以及本文的主要工作，論述了開關電容網路原理和基本開關模塊，分析了開關電容濾波器設計的相關因素：電路結構的選擇，對運算放大器設計中高增益、寬帶寬、相位裕度、轉換斜率和建立時間等的折中考慮，開關的打開電阻對電路的影響，開關電容電路中怎樣減少電荷注入和時鐘饋通，以及整個電路的功耗問題和采樣頻率的選擇等。 -
In this thesis, theory of switched - current ( si ) technology and its application in the design and synthesis of active filters are researched deeply and systematically. some new switched - current building - blocks and exact approach methods of switched - current filters ( sif ) are proposed from modern lc networks and switched capacitor ( sc ) technology
論文深入探討了開關電流技術及其在濾波器設計中的應用，並以現有無源網路和開關電容技術為基礎，提出了一些基於開關電流技術的新型濾波器模塊和濾波器設計方法。 -
Study on design and simulation for switched capacitor filters
開關電容濾波器設計與模擬方法的研究 -
Firstly, this thesis introduces the development of switched capacitor filters and basic principles of normal filters
本文首先介紹了開關電容濾波器的發展過程以及濾波器的基本原理和分類。 -
There are two methods to realize the function of the switched capacitor filter : dual - two order method and z - domain method. this thesis emphasizes to introduce the two methods and realize the functions with the two methods
開關電容濾波器的實現方法主要有兩種：雙二階法和z域法，本文著重介紹了這兩種實現方法並分別用這兩種方法對開關電容濾波器的功能進行了實現。 -
In the switched capacitor filter circuit, the properties of the operational amplifier influences the whole circuit severely, so this thesis introduce a typical operational amplifier that has two orders and tests the main properties of it
開關電容濾波器中，運算放大器的性能對整個濾波器的性能有著較大的影響，因此本文介紹了一種典型的兩級運算放大器的設計方法，並對該運算放大器的性能進行了測試。 -
Switched capacitor network
開關電容網路 -
The exact design methods of switched - current filters are summarized, such as the director synthesis of z - plane, euler mapping, state variable analysis, matrix decomposition, and signal - flow - graph simulation of the lc and switched capacitor prototypes. at the same time, a modified left decomposition matrix method is proposed to overcome the usual problems of large silicon area, high sensitivity and component spreads by minimizing the input circuits. examples of switched - current low - pass, high - pass and band - pass filters are given to verify the feasibility of these methods
總結分析了實現高精度開關電流濾波器設計的各種實用方法，包括z域綜合法、歐拉映射法、模擬無源lc網路和開關電容網路的狀態變量法、矩陣分解法和信號流圖轉置法，並對左分解法加以整理改進，提出一種更為簡潔的設計結構，通過減化輸入電路克服一般電路中存在的佔用矽片面積大、靈敏度高等問題。 -
And the ways to optimize the circuit architecture, minimize the circuit nonidealities and improve the circuit performance are analyzed combined with the characteristics of the modulator architecture. based on it, the switched - capacitor integrator, class a amplifier, nonoverlap clock, voltage reference, comparator, feedback dac have been designed. in the end, the layout design is shown
調制器採用全差分開關電容電路實現，並根據系統結構特點就如何優化電路結構、克服電路中存在的非理想特性、提高電路性能作了具體分析，在此基礎上完成了開關電容積分器（開關、電容、運算放大器） 、參考電壓源、比較器、兩相非交疊時鐘、反饋dac等模塊的電路結構和參數設計。 -
Charge pump operation principle and a 50ma switched - capacitor automatic step - up / step - down charge pump converter with wide input supply voltage and multi output versions, which uses 0. 5 m standard cmos technology, are presented in this paper
在對電荷泵原理研究的基礎上，論文採用0 . 5 m標準cmos工藝設計了一種具有寬輸入電壓范圍和多輸出規格的50ma自動升/降壓開關電容電荷泵dc / dc轉換器。 -
Reactive power are calculated using the new algorithm. on the basis of analyzing different kinds of control strategies of var compensation, the paper applies the criterion of voltage and var to control switching and illustrates a improved mode of switching capacitor which can prevent the switched - capacitor from the impacting of instantaneous rush currents by means of zero - crossing triggering of scr components, and can realize auto - tracking var and auto - switching shunt capacitor bank. initial operating parameters are stored in information flash memory of the mcu using flash self - programming technique in order to decrease complexity of the circuit and improve stability
高壓智能無功補償控制器以flash型16位單片機msp430f149為控制核心，採用了一種相角實時測量的新演算法，並在此基礎上計算出了功率因數、有功和無功，減少了運算量提高了精度；在分析了各種無功補償控制策略的基礎上，以母線電壓和無功功率復合判據控制投切，並提出一種改進的電容器投切方式? ?暫態投切控制晶閘管過零觸發，避免了電容器投切時的電流沖擊；穩態運行時接觸器替代晶閘管，實現無功補償的自動跟蹤和電容器的自動投切，解決了投切時的暫態電流沖擊和穩態時可靠運行的難題；控制器的原始運行參數採用flash自編程技術，將其保存在msp430f149片內的信息flash中，簡化了硬體電路，大大提高了系統的可靠性。 -
Intelligent thyristor switched capacitor compensating system controlled by microcomputers
智能型晶閘管投切電容器無功補償微機控制系統 -
According to the specification and the scheme three architectures including a gmc ( transconductor capacitor ) filter, a sc ( switched capacitor ) filter and a si ( switched current ) filter are researched and implemented, simulated in 0. 18m cmos process. the results are as expected
根據系統要求及設計方案，分別研究並得到了跨導電容、開關電容和開關電流三種濾波器結構，採用0 . 18mcmos工藝進行模擬，其結果與預期的基本符合。 -
In the fourth chapter, a fourth - order chebyshev low - pass filter employs new low voltage, highly linear, wide inputting range transconductor is proposed, then we presents a new circuit to tune gm value of transconductor accurately, which employs a new switched - capacitor circuit to change the bias current of transconductor, a third order elliptical function low - pass filter with accurate tunable frequency has been designed using transconductor that is not only with voltage common - mode negative feedback, but also with varying bias - triode transistors which can improve the linearity of this circuit
第四章：提出了一種新的低電壓、高線性度、寬輸入范圍跨導，並由此設計實現了四階切比雪夫（ chebyshev ）低通濾波器，接著提出了一種寬輸入范圍且具有電壓共模負反饋的全差分跨導，並採用一種新的開關電容電路實現跨導值gm精確可調，從而可以設計得到高性能具有精確截止頻率的跨導-電容三階橢圓函數濾波器。 -
Continuous - time filter needn ’ t a / d switch, data processing, d / a switch technique and so on to finish filtering function with analog signal like digital filter. and it needn ’ t switch action to sample data in the discrete time with analog signal like switched capacitor filter. so continuous - time filter has several advantages, such as high processing speed, simple circuit configuration, and low power consumption
對每種方法都進行了詳細的推導，總結了每種設計方法的設計步驟、適用場合，舉例用每種設計方法對具體濾波器進行了電路設計、靈敏度特性分析、失真特性分析等，並用計算機模擬驗證了電路方案。 -
Based on the tsc reactive compensation equipment, a new low - voltage intelligent controller is designed, which can slove switched - capacitor without instantaneous rush current by means of zero - crossing triggering of scr components, and can realize auto - tracking reactive power, compensating and auto - switching scb. msp430f149 mcu is used as its core controller. it is shown that the algorithm in hand has the vantage of decreasing power loss and lowers of voltage and increasing the distribution system efficiency, for example power factor
該控制器以msp430f149為控制核心，暫態投切控制晶閘管過零觸發，避免了電容器投切時的電流沖擊；穩態運行時接觸器替代晶閘管，實現了無功補償的自動跟蹤和電容器的自動投切，解決了投切時的暫態電流沖擊和穩態可靠運行的難題。
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