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1

Keller, Lisa A. "Current-mode control of a magnetic amplifier post regulator." Thesis, This resource online, 1991. http://scholar.lib.vt.edu/theses/available/etd-02132009-171329/.

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2

Arpino, Alberto. "Analisi di circuiti di tipo current conveyor e loro possibili applicazioni." Bachelor's thesis, Alma Mater Studiorum - Università di Bologna, 2012. http://amslaurea.unibo.it/4780/.

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3

Luan, Jiyuan. "Design and Development of High-Frequency Switching Amplifiers Used for Smart Material Actuators With Current Mode Control." Thesis, Virginia Tech, 1998. http://hdl.handle.net/10919/36914.

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This thesis presents the design and development of two switching amplifiers used to drive the so-called smart material actuators. Different from conventional circuits, a smart material actuator is ordinarily a highly capacitive load. Its capacitance is non-linear and its strain is hysteretic with respect to its electrical control signal. This actuator's reactive load property usually causes a large portion of reactive power circulating between the power amplifier and the driven actuator, thus reduces the circuit efficiency in a linear power amplifier scenario. In this thesi
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4

Figueiredo, Michael. "Reference-free high-speed cmos pipeline analog-to-digital converters." Doctoral thesis, Faculdade de Ciências e Tecnologia, 2012. http://hdl.handle.net/10362/8776.

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Submitted in partial fulfillment of the requirements for the degree of Doctor of Philosophy in Electrical and Computer Engineering of the Faculdade de Ciências e Tecnologia of Universidade Nova de Lisboa<br>More and more signal processing is being transferred to the digital domain to profit from the technological enhancement of digital circuits. Where technology scaling enhances the capabilities of digital circuits, it degrades the performance of analog circuits. However, it is important to note that the impact that technology scaling has on digital circuits is becoming smaller and smaller, wh
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5

Pisár, Peter. "Metody návrhu aktivních kmitočtových filtrů na základě pasivního RLC prototypu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218107.

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The aim of this diploma thesis is to design active frequency filters based on passive RLC prototype. Three methods of the design of active filters and active functional blocks of electronic circuits working in current or mixed mode are used to this purpose. These blocks allow to process electrical signals with frequencies up to low tens of megahertz. In addition they feature for instance with high slew rate and low supply voltage power. Active high-pass and low-pass 2nd order filters are designed using simulation of inductor by active subcircuit method. Grounded and subsequently floating synth
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6

Chrást, Jakub. "Návrh a realizace symetrických převodníků U/I a I/U." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218548.

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Master´s thesis deals about design of symmetrical converters voltage on current and current on voltage. These converters will be used for measuring frequency characteristics of differential frequency filters. Current feedback amplifier was used as active element. Some circuits useful for this function were chosen. Various integrated circuits were put into these circuits. All variations were simulated in computer program Orcad. In terms of computer simulations the best variation was chosen. Selected variants were practically verified and control measuring were realized.
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7

Uher, Jiří. "Návrh filtračních struktur fraktálního řádu." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-242051.

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This thesis deals with the fractional (1+)-order filters. The proposed filters operate in the current-mode. The derivation of the filters has been achieved using a third-order aproximation of the coresponding fractional-order transfer functions. It also describes active elements such as universal current conveyor, current follower and operational transconductance amplifier. In the end of this thesis some new circuit solutions of the fractional-order filter are proposed. Then the proposed filters are realized and experimentally measured.
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8

Pánek, David. "Syntéza diferenčních filtračních struktur se složenými aktivními prvky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2019. http://www.nusl.cz/ntk/nusl-399604.

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This document is focused on already existing single-ended frequency filters with modern active components working in current mode and their modification into fully-differential ended form. After the modification both versions were compared between each other. The first part informs about problems concerning analogue frequency filters. The second part deals with used active components - MO-CF (Multiple Output Current Follower), BOTA (Balanced transconductance amplifier), UCC (universal current conveyor), VDTA (Voltage differencing transconductance amplifier), CDTA (Current differencing transcon
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9

Michalička, Filip. "Syntéza elektronicky rekonfigurovatelných kmitočtových filtrů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413078.

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This diploma thesis deals with design of reconection-less electronically reconfigurable filter structures which have single input and single output using unconventional active elements, which have ability to adjust one of their parameter e.g. gain or transconductance. The first part describes basic parameters of frequency filters, the division of filters by frequency transfer response and used circuit elements, their operational modes, the principle of reconnection-less electronically reconfiguration and the circuit design method MUNV. Second part describes all active elements used in the prop
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10

Gajdoš, Adam. "Elektronicky rekonfigurovatelné kmitočtové filtry." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241983.

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The aim of the thesis was design of reconnection-less and electronically reconfigurable filters of SISO type with non-traditional active elements. Adjustability of bandwidth or quality factor is also required. First part of the thesis deals with theoretical analysis of filters, their operation modes and design of frequency filters using Signal-flow graph method aswell. Last but not least, electronical reconfiguration of transfer function and parasitic analysis was discussed. Another part describes active elements used in the practical part of thesis. Behaviors and design of active elements usi
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11

Zápeca, Jan. "Spínaný zdroj s digitální řídící smyčkou." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-219759.

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The diploma thesis is describing how forward converter works. The diploma thesis presents the function of forward converter with demagnetizing winding and presents the function of two-switched forward converter. The diploma thesis descibes the behaviour of continuous current mode and discontinuous current mode. The diploma thesis explains the reasons for implementation feedback and presents the basic types of compensations. The project deals with AC analysis of two-switched forward converter with continuous peak current mode control. The Analog prototyping metod is used for digital control des
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12

Jeřábek, Jan. "Kmitočtové filtry s proudovými aktivními prvky." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-233528.

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This doctoral thesis is focused mainly on research of new current active elements and their applications in frequency filters suitable for current-mode. Work is focused on design of new filtering structures suitable for traditional single-ended signal processing and also on structures suitable for fully-differential applications. The thesis contains three designed general conceptions of KHN-type second-order filters. Adjustability of quality factor and pole frequency is provided by controllable current amplifiers that are placed properly in designed structures. Structures also contain second-g
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13

Langhammer, Lukáš. "Plně diferenční kmitočtové filtry s moderními aktivními prvky." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-256565.

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Tato disertační práce se zaměřuje na výzkum v oblasti frekvenčních filtrů. Hlavním cílem je navrhnout a analyzovat plně diferenční kmitočtové filtry pracující v proudovém módu a využívající moderní aktivní prvky. Prezentované filtry jsou navrženy za použití proudových sledovačů, operačních transkonduktančních zesilovačů, plně diferenčních proudových zesilovačů a transrezistančních zesilovačů. Návrh se zaměřuje na možnost řídit některý z typických parametrů filtru pomocí řiditelných aktivních prvků, které jsou vhodně umístněny do obvodové struktury. Jednotlivé prezentované filtry jsou navrženy
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14

Vieira, Filipe Costa Beber. "Amplificador de Instrumentação em Modo Corrente com entrada e saída Rail-to-Rail." Universidade Federal de Santa Maria, 2009. http://repositorio.ufsm.br/handle/1/5347.

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This dissertation is aimed at the development of a current mode instrumentation amplifier (CMIA) with a high common mode input range. This characteristic is obtained due to the rail-to-rail operational amplifiers (opamps). These opamps are built with rail-to-rail differential amplifiers as input stages, and with cascode-based output stages, which are able to copy its current by adding identical branches and connecting their gates without the voltage degradation as the known CMIA topologies. The main contribution of this work is the development of a rail-to-rail current mode instrumentation amp
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15

Žůrek, Radomil. "Využití grafů signálových toků k návrhu diferenčních filtrů." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2010. http://www.nusl.cz/ntk/nusl-218355.

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The dissertation deals with the design of fully differential frequency filters using the signal flow graphs. It presents the procedures for designing frequency filters, focusing on the active elements such as multiple-output current followers (MO-CF) and digitally adjustable current amplifiers (DACA), which work in a current mode. It is theoretically discussed the issue of designing the M-C graphs, which are the graphic analogy of voltage and current incidence matrices. There are also presented three designs of 2nd order frequency filter circuits using the indirect method of design by M-C grap
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16

Toumazou, C. "Universal current-mode analogue amplifiers." Thesis, Oxford Brookes University, 1986. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.372854.

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17

Horák, Ondřej. "Fázovací obvody s moderními funkčními bloky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-218030.

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The present thesis is focused on all pass filters. The principle of all pass filters, their properties, the design of nth degree of these circuits will be analysed in succession and then some of functional blocks, by which these structures can be made, will be described. After that, the allpass filters will be designed and simulated in program OrCAD PSpice. First of all, the analysis will be performed with ideal components, then with real components. After that, the sensitivity and tolerance analysis will be made and the influence of parasite effects on circuit parameters will be examined. Onc
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18

Prát, Marek. "Návrh elektronicky rekonfigurovatelných filtračních struktur s moderními aktivními prvky." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2018. http://www.nusl.cz/ntk/nusl-377113.

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The aim of master's thesis was design of electronically reconfigurable filters. Adjustability of pole frequency or quality factor is possible. First part of thesis deals with theoretical analysis of filters, their operation modes, design of frequency filters using Signal-Flow graph method and parasitic analysis. The next part describes active elements used in thesis. In a third part, three reconfigurable filters are described and designed and their simulations and parasitic analysis are made. Last part deals with filter design in EAGLE and experimental measurement.
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19

Alves, Luís Filipe Mesquita Nero Moreira. "High gain and bandwidth current-mode amplifiers : study and implementation." Doctoral thesis, Universidade de Aveiro, 2008. http://hdl.handle.net/10773/2216.

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Doutoramento em Engenharia Electrotécnica<br>Esta tese aborda o problema do projecto de amplificadores com grandes produtos de ganho por largura de banda. A aplicação final considerada consistiu no projecto de amplificadores adequados à recepção de sinais ópticos em sistemas de transmissão ópticos usando o espaço livre. Neste tipo de sistemas as maiores limitações de ganho e largura de banda surgem nos circuitos de entrada. O uso de detectores ópticos com grande área fotosensível é uma necessidade comum neste tipo de sistemas. Estes detectores apresentam grandes capacidades intrínsecas, o que
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20

Wong, Wai Yu. "Supply-independent current-mode slew rate enhancement design /." View abstract or full-text, 2006. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202006%20WONG.

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21

Štibraný, Miroslav. "Řízený laboratorní zdroj." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-240809.

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Master’s thesis deals with design of laboratory supply with precise voltage and current measuring. At the beginning it presents properties, advantages and disadvantages of linear and switching supplies, based on these facts it chooses a linear type of regulator. The design continues with detailed description of power and control analog and digital circuits. The thesis includes description of taking control over the supply from the front panel or through computer. The last part is devoted to measurement results and to presentation of some static and dynamic parameters of the designed supply.
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22

Šotner, Roman. "Studium elektronického řízení a reálného chování variabilních filtračních a oscilačních aplikací moderních aktivních prvků." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2012. http://www.nusl.cz/ntk/nusl-233574.

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The thesis deals with electronically adjustable and configurable applications of the modern active elements. In the field there were presented various active elements in applications of the analog filters and oscillators which stem from basic and more or less similar principles of circuit synthesis and design. However, there is not provided study of real behavior in detail and in most cases electronic control of the various parameters in application is not verified. In the precise design of application is very important to identify problematic features and determine how much it influences func
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23

Sobotka, Josef. "Aplikační možnosti programovatelného zesilovače LNVGA." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2015. http://www.nusl.cz/ntk/nusl-220430.

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This thesis deals with the theoretical description of the qualitative characteristics and parameters of some modern active elements, also discusses the theory of signal flow graphs at the level applicable for the following frequency filter design methods. The thesis is also generally discussed the issue with the circuit simulator PSpice modeling theory and voltage amplifiers on the basic 6-levels. The practical part of the work is divided into two parts. The first practical part is dedicated to design four levels of simulation model of components LNVGA element. The second practical part contai
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24

Šotner, Roman. "Vícefunkční přeladitelný aktivní filtr." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2008. http://www.nusl.cz/ntk/nusl-217657.

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The diploma thesis deals about design of the ARC multifunctional filters using modern functional blocks. These active blocks are for example voltage feedback operational amplifiers (OAs), operational transconductance amplifiers (OTAs), current conveyors (CCIIs) or current mode analog multipliers, current feedback amplifiers (CFAs), integrated circuits with switched capacitors building blocks (SCs) and digital potentiometers. The filters are studied with ideal circuit models and models of third level (3) based on voltage controlled voltage sources, voltage controlled current sources etc. (analo
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Vyčítal, Jaroslav. "Realizace jednoduchých aktivních prvků s komerčně dostupnými BJT/MOS poli." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241043.

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The subject of the work is an introduction to the functions of the current mirrors and differential pairs. Consequently, understanding and simulated simple circuits composed of these circuits. The simulation results are in Chapter 5, which are also included diagrams of simulated circuits..
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Novotný, Jakub. "Behaviorální modely aktivních prvků s nezávislým víceparametrovým elektronickým řízením." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-241053.

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This thesis is focused on behavioral modelling of active elements with independent multi-parameter electronic control using comercially available components. In a first part of the thesis, CVDIBA, CVDOBA, CVCC and OC elements are discussed. The functionality is verified by simulations using OrCAD PSpice. Used components are diamond transistor OPA860, variable gain amplifier LMH6505, differencing amplifier AD830, low distortion differential driver AD8138, current conveyor EL2082 and current mode four quadrant multiplier EL4083. Four active elements are further built on PCB and measured. Some ap
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27

KUMAR, PRADEEP. "CURRENT MODE ADC USING CURRENT DIFFERENCING TRANSCONDUCTANCE AMPLIFIER." Thesis, 2013. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15694.

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This dissertation presents the implementation of a two bit flash analog‐to‐digital converter based on current‐mode technique. The analog‐to‐digital converter presented here employs three current differencing transconductance amplifier (CDTA) based comparator ,a current mirror and a priority encoder. The advantages of current ‐mode technique are higher speed, lower power dissipation, and simple division of reference current based on current mirror. The new method allows effective and simple high‐speed A/D conversion where the input is a current signal and the output is a digital voltage s
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28

Botelho, Cindy. "A universal CMOS current-mode operational amplifier." Thesis, 1990. http://hdl.handle.net/1957/38150.

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It has become customary in electrical engineering to think of signal processing in terms of voltage variables to the exclusion of current variables. This tendency has resulted in voltage signal processing circuits such as voltage-controlled voltage sources (VCVS) and voltage-mode operational amplifiers. However, the VCVS operational amplifier has several limitations which prevent high performance operation. One of these limitations is that the product of the closed loop -3dB bandwidth and the closed loop voltage gain is approximately a constant. Thus, for a typical internally compensated opera
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29

Tang, Bing-shiun, and 湯秉勳. "A Low Noise High CMRR Current-Mode Amplifier." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/81511236881776905994.

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碩士<br>長庚大學<br>電子工程學研究所<br>96<br>Biomedical signals, such as EEG/ECG signals, are characterized by their low voltage-levels and very low frequencies. Thus, a current-mode instrumentation amplifier (IA) must exhibit very low input-referred noise. Biomedical signals are acquired and transferred to the voltage signals with amplitude of several milli-volts. The IA must have high input impedance, low output impedance, limited bandwidth, adjustable gain and low power consumption. Additionally, it must have adequate gain, high power-supply rejection ratio (PSRR) and high common-mode rejection ratio (C
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丁子仁. "A Current-Mode Sense Amplifier for Low Power SRAM." Thesis, 2002. http://ndltd.ncl.edu.tw/handle/52441984208968724197.

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Tien, Ji Hong, and 田吉宏. "High-CMRR Current-mode Instrumentation Amplifier for Biomedical Applications." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/78892794033643343909.

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碩士<br>長庚大學<br>電子工程學研究所<br>97<br>With the advancement of science and technology to change with each passing day in last few years, medical treatment instruments are not out of the ordinary to develop. Due to the technology of VLSI the idea of SOC has a tendency to become matured. Due to SOC technology, the expensive and large medical instruments will be greatly reduced in both cost and volume. Moreover, the portability and easy-to-use become possible. However, the design and research for biomedical signal detecting system has already become more and more important since 1950, especially bi
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Huang, Wei-Hsiang, and 黃偉祥. "Voltage/Current-Mode Multifunction Filters Using One Current Feedback Amplifier and Grounded Capacitors." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/41552750684685856083.

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碩士<br>中原大學<br>電子工程研究所<br>100<br>Abstract One configuration for realizing voltage-mode multifunction filters and another configuration for realizing current-mode multifunction filters using current feedback amplifiers (CFAs) are presented . The proposed voltage-mode circuit exhibit simultaneously lowpass and bandpass fiters. The proposed current-mode circuit exhibit simultaneously lowpass, bandpass and highpass filters. The proposed circuit offer the following features: No requirements for component matching conditions; low active and passive sensitivities; employing only grounded capacitors an
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Chen, Hsiuen-Chuen, and 陳炫全. "Current-Mode Operational Amplifier for Low-Voltage High-Speed Operation." Thesis, 1999. http://ndltd.ncl.edu.tw/handle/17691514897993154785.

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碩士<br>國立清華大學<br>電機工程學系<br>87<br>A current-mode operational amplifier (COA) for low-voltage high-speed operation is proposed in this dissertation. This COA adopts the current-steering approach, which avoids using a current mirror as the transimpedance stage and improves the frequency response. On the other hand, a high-swing multiple-cascode structure is invoked to pull up the open-loop gain of the COA and to reduce the operating voltage. At last a modified input structure is proposed, which shortens the signal path from the input to the transconductance stage to achieve a higher unit gain b
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"A high performance current mode amplifier with boosted saturation voltage." 2009. http://library.cuhk.edu.hk/record=b5894041.

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Tsang, Ka Hung.<br>Thesis (M.Phil.)--Chinese University of Hong Kong, 2009.<br>Includes bibliographical references.<br>Abstract also in Chinese.<br>Abstract<br>Acknowledgement<br>Content<br>Chapter 1. --- Introduction<br>Chapter 1.1 --- Motivation for Current-Mode Circuit --- p.1-1<br>Chapter 1.2 --- Basic Current-Mode Building Block --- p.1-3<br>Chapter 1.3 --- Adjoint Principle --- p.1-5<br>Chapter 1.4 --- Characteristics of Current Amplifier --- p.1-8<br>Chapter 1.5 --- Application of Current-Mode Circuit --- p.1-10<br>Chapter 2. --- Conventional Design<br>Chapter 2.1 --- System Overvi
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Chen, Shin Hung, and 陳信宏. "Design of current-mode filters using the operational amplifier pole." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/17518668658599610090.

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碩士<br>中原大學<br>電機工程研究所<br>82<br>A publication by Roberts and Sedra proposed that the circuits based on current amplifiers will operate at higher signal bandwidths, with greater linearity and have larger dynamic range than their voltage-based circuit counterparts. Hence, some current-mode filters using the operational amplifier (op.-amp.) pole were proposed. In this thesis, we propose novel current-mode highpass, notch and allpass filters employing the op.-amp. pole with the
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Liang, Funian, and 梁甫年. "A New 1.8V Current Mode Sense Amplifier for Flash Memories." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/11022565876664374739.

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碩士<br>國立中興大學<br>電機工程學系<br>89<br>ABSTRACT In many applications, such as portable MP3 players, cellular phones, digital cameras, and other hand-held equipments, flash memories have been widely used as a media for mass storage of audio and video information. Similar to other memories, there is a growing demand for high-density, low-cost and low-power memory cells. Recently, the multilevel cell technique introduced by Intel Corp. realizing high capacity and low-cost flash memories, draw many people’s attention. In this work, we present a novel current mode sense amplifier for
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Liu, Chia-Chi, and 劉家驥. "A Current Mode Sense Amplifier for Small Cell Current Non-Volatile Memory with Offset Suppressing Scheme." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/49929196774414808577.

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碩士<br>國立清華大學<br>電機工程學系<br>98<br>In today’s SOC chip, non-volatile memory plays an important role to store the data from other peripheral unit and can read out repeatable. With the technology shrink, the cell array in same area is larger and larger. However, the cell current is also decreased not only NOR type flash but also NAND type flash or OTP and difficult to read. With the nanometer technology, the transistor threshold voltage mismatch gets more pronounced and making the sensing failure easily. To solve this problem, we propose a new current mode sense amplifier with offset suppress s
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Lim, Huey-jen, and 林惠禎. "Low-Power Register File with Novel Low-Voltage Current Mode Sense Amplifier." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/37610064619757885057.

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碩士<br>國立成功大學<br>電機工程學系碩博士班<br>96<br>High-performance low-power register file design has become one of the critical conditions for the continual advancement in wide-issue and deeply pipelined superscalar microprocessors. Frequent accesses to the register file makes it one of the major sources of power consumption and one of the prime hot-spots. A novel multi-voltage register file with one write port, two read ports and 32x32 bits implemented using TSMC 0.18μm is presented in this thesis. Low voltage techniques are applied onto the register file to reduce the power consumption while having a max
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Wang, Huei-Chi, and 王惠琪. "Design of Current Mode Operational Amplifier with Differential Input and Differential Output." Thesis, 1997. http://ndltd.ncl.edu.tw/handle/90020224361357870789.

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碩士<br>淡江大學<br>電機工程學系<br>85<br>In the last few decades, the analogue designers more thought about processing signal by current mode signal. As the current mode circuit compares with the voltage mode circuit, the former proves to be two conceptual advantages: higher frequency capabilities and larger dynamic range. And the architecture of current mode circuit form, it is more convenient and direct to copy or operate the signal than the voltage mode. Such as the switch current filter in the recently developing. In this thesis, a new CMOS current operational amplifier (COA) with fully differ
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Chao, Chi-Cheng, and 趙基程. "A High Folding-Rate Folding Amplifier for Current-Mode Analog-to-Digital Converters." Thesis, 2006. http://ndltd.ncl.edu.tw/handle/83128122173684105326.

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碩士<br>國立東華大學<br>電機工程學系<br>94<br>A novel current-mode folding amplifier designed for two current-mode analog-to-digital converter (ADC) is presented in the thesis. The signal in the proposed folding amplifier is copied and delivered by the current mirrors, thus the linearity of the proposed folding amplifier is better than the traditional voltage-mode folding amplifier which is constructed by differential pairs. On the other hand, the folding rate of the proposed folding amplifier is determined by the resolution of the coarse ADC. Thus the folding rate can be increased unlimitedly if the chip a
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Wang, Meng-Ciou, and 王孟丘. "Design of Instrumentation Amplifier and High-Order Tunable Filter Based on Current-Mode Active Elements." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/785y59.

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碩士<br>國立臺北科技大學<br>電腦與通訊研究所<br>98<br>This thesis mainly focuses on the implementation of instrumentation amplifier and tunable bandwidth filter by using current current-mode active elements. This thesis can be divided into three parts. The first part of this thesis is to design instrumentation amplifier using fully differential difference current conveyor, which purpose is to amplify signal that is small and weak, but weak signal will be affected strongly by noise, therefore, the design of high common-mode rejection ratio will be the key point. Process technology using TSMC 0.35μm 2P4M process
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Sung, Ya-Syuan, and 宋亞軒. "The Design of 8-Channel CMOS Current-mode Analog Front-End Amplifier for EEG Recording." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/u64hyk.

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Shusta, Michael J. "Design and Evaluation of an L-Band Current-Mode Class-D Power Amplifier Integrated Circuit." 2014. https://scholarworks.umass.edu/masters_theses_2/44.

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Power amplifiers (PAs) convert energy from DC to high frequencies in all radio and microwave transmitter systems be they wireless base stations, handsets, radars, heaters, and so on. PAs are the dominant consumers of energy in these systems and, therefore, the dominant sources of system cost and inefficiency. Research has focused on efficient solid-state PA circuit topologies and their optimization since the 1960s. The 2000s saw the current-mode class-D (CMCD) topology, potentially suitable for today's wireless communications systems, show promise in the UHF frequency band. This thesis describ
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Wu, Wei-Chuan, and 吳緯權. "Current Mode Buck-Boost Converter with Fast Reference Tracking Technique in RF Amplifier Supplying Systems." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/62118028015270241075.

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碩士<br>國立交通大學<br>電機與控制工程系所<br>97<br>Recently, wireless communication portable devices are increasing. High efficiency radio frequency power amplifiers (PAs) are critical components in many products, like wireless LAN, personal wireless communication system, manufactures using Bluetooth, and so on. Traditionally, linear PAs are implemented by “backing off” the PA, so that their average output power is well below the amplifier saturated power. Unfortunately, this decreases the average efficiency. Therefore, technique like envelope tracking could increase the efficiency of PAs. High efficienc
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Liu, Wen-Hsiung, and 劉文雄. "Design of New Current-Mode Instrumentation Amplifier and Analog Front-End Circuit for Biomedical Applications." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/8v9a5z.

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碩士<br>國立臺北科技大學<br>電腦與通訊研究所<br>97<br>The design and improvement of instrumentation amplifier is the focus in this thesis, the author used different current conveyors to complete instrumentation amplifiers , and improve the performance of circuits. The elements used are current conveyor、operational transresistence amplifier、differential difference current conveyor、fully differential difference current conveyor and differential difference operational floating current conveyor. The function of instrumentation amplifier is to amplify signal that is small and weak,but weak signal will be affected s
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Li, Chih-Chen, and 李志琛. "High Sensitivity CMOS Voltage-to-Frequency Converter and High-Speed Current-Mode Sense Amplifier for SRAMs." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/93936796067858463112.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>91<br>The first topic of this thesis is to propose a novel voltage-to-frequency converter (VFC) to provide high sensitivity. The VFC circuit is composed of one current mirror, one current multiplier, and voltage window comparators. The proposed VFC tracks the variations of the stored charge of a built-in capacitor. The voltage window comparator monitors the voltage of the capacitor to determine whether the output is pulled high or pulled down. The worth-case linear range of the output frequency of the proposed VFC is 0 to 55 MHz provided that the input voltage
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Cheng, Chia-tsung, and 城嘉聰. "Design of the High Speed Current Mode Sense Amplifier for Spin Torque Transfer Magnetoresistive Random Access Memory." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/52215294734896797653.

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碩士<br>國立中央大學<br>電機工程研究所<br>98<br>According to the rapid evolution of hand-held products, the cell phone、PDA、digital camera and iPOD are more popular with people. The requirements of memory are more than before. The applications of memory circuits are the added value and the key technique for those components. Therefore, the embedded memory is more and more important in SoC. A high-speed current mode sense amplifier for Spin Torque Transfer Magnetoresistive Random Access Memory (STT MRAM) is proposed. The circuit is fabricated by TSMC 0.18 μm 1P6M, the MTJ (Magnetic tunnel junction) utilizes IT
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Sundar, Arun. "A 3-Bit Current Mode Quantizer for Continuous Time Delta Sigma Analog-to-Digital Converters." Thesis, 2011. http://hdl.handle.net/1969.1/ETD-TAMU-2011-12-10515.

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The summing amplifier and the quantizer form two of the most critical blocks in a continuous time delta sigma (CT ΔΣ) analog-to-digital converter (ADC). Most of the conventional CT ΔΣ ADC designs incorporate a voltage summing amplifier and a voltage-mode quantizer. The high gain-bandwidth (GBW) requirement of the voltage summing amplifier increases the overall power consumption of the CT ΔΣ ADC. In this work, a novel method of performing the operations of summing and quantization is proposed. A current-mode summing stage is proposed in the place of a voltage summing amplifier. The summed sign
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Chen, Shi-Xuan, and 陳世軒. "A 2.5V 8-bit 100MHzS/s 16mW Current Mode Folding and Interpolation Analog to Digital Converter Using Back-end Amplifier." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/75054812375954127312.

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碩士<br>國立中山大學<br>電機工程學系研究所<br>92<br>A 2.5V 8-bit 100MSample/sec folding and interpolation analog to digital converter is described in this thesis. First, a cascoding folding amplifier is used for improve power consumption. The differential pairs of the folding amplifier are cascoded to reduce the numbers of reference current source, so the power consumption is reduced. In order to reduce more power consumption, we drop the power supply down to 2.5V. However, the power supply is not large enough to keep the folding amplifier working normally and it causes the output signal aberration. Hence, we
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Frebrowski, Daniel Jordan. "Investigation of Time Domain Modulation and Switching-Mode Power Amplifiers Suitable for Digitally-Assisted Transmitters." Thesis, 2010. http://hdl.handle.net/10012/5492.

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Innovation in wireless communication has resulted in accelerating demand for smartphones using multiple communications protocols such as WiFi, Bluetooth and the many cellular standards deployed around the world. The variety of frequency, bandwidth and power requirements associated with each standard typically calls for the implementation of separate radio frequency (RF) front end hardware for each standard. This is a less-than-ideal solution in terms of cost and device area. Software-defined radio (SDR) promises to solve this problem by allowing the RF hardware to be digitally reconfigurable
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