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Relevant bibliographies by topics / DC-to-DC converters Digital electronics Power electronics / Dissertations / Theses

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Dissertations / Theses on the topic 'DC-to-DC converters Digital electronics Power electronics'

Author: Grafiati

Published: 4 June 2021

Last updated: 16 February 2022

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1

Chui, Yeung-Kei. "An integrated digital controller for DC-DC switching converter with dual-band switching /." View Abstract or Full-Text, 2002. http://library.ust.hk/cgi/db/thesis.pl?ELEC%202002%20CHUI.

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Thesis (M. Phil.)--Hong Kong University of Science and Technology, 2002.<br>Includes bibliographical references (leaves 95-97). Also available in electronic version. Access restricted to campus users.

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2

Forbes, Daniel. "Efficiency Performance Improvement Using Parallel DC-DC Converters with a Digital Controller." DigitalCommons@CalPoly, 2012. https://digitalcommons.calpoly.edu/theses/736.

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A system to improve efficiency performance of a DC-DC converter is simulated and built. The proposed system combines multiple DC-DC converters in parallel and implements a digital control scheme and load-share controller. A model of the system is developed in MATLAB Simulink and the model demonstrates the improved converter’s efficiency particularly at low load conditions. This simulation is then designed into a hardware system running three DC-DC converters in parallel, controlled by a microcontroller and a load-share controller. The hardware also confirms the simulation results, although som

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3

Pepper, Michael. "BI-DIRECTIONAL DCM DC-TO-DC CONVERTER FOR HYBRID ELECTRIC VEHICLES." Master's thesis, University of Central Florida, 2008. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/2672.

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With the recent revival of the hybrid vehicle much advancement in power management has been made. The most popular hybrid vehicle, the hybrid electric vehicle, has many topologies developed to realize this hybrid vehicle. From these topologies, as sub set was created to define a particular group of vehicles where the converter discussed in this thesis has the most advantage. This sub set is defined by two electric sources of power coupled together at a common bus. This set up presents many unique operating conditions which can be handled seamlessly by the DC-to-DC converter when designed prope

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4

Li, Nan. "Digital control strategies for DC/DC SEPIC converters towards integration." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00760064.

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The use of SMPS (Switched mode power supply) in embedded systems is continuously increasing. The technological requirements of these systems include simultaneously a very good voltage regulation and a strong compactness of components. SEPIC ( Single-Ended Primary Inductor Converter) is a DC/DC switching converter which possesses several advantages with regard to the other classical converters. Due to the difficulty in control of its 4th-order and non linear property, it is still not well-exploited. The objective of this work is the development of successful strategies of control for a SEPIC co

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5

Kutluay, Koray. "Fully Digital Parallel Operated Switch-mode Power Supply Modules For Telecommunications." Phd thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606640/index.pdf.

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Digitally-controlled, high power universal telecommunication power supply modules have been developed. In this work, the converter control strategy, and its design and implementation first, by means of parallel-operated, dual, 8-bit microcontrollers, and then by using a high processing power digital signal processor (DSP) have been emphasized. The proposed dual-processor based digital controller provides an extended operating output voltage range of the power supplies, user programmable current limit setting, serial communication based active load current sharing with automatic master-slave se

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6

Abbas, Ghulam. "Analysis, modelling, design and implementation of fast-response digital controllers for high-frequency low-power switching converters." Thesis, Lyon, INSA, 2012. http://www.theses.fr/2012ISAL0055.

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L'objectif de la thèse est de concevoir des compensateurs discrets qui permettent de compenser les non-linéarités introduites par les différents éléments dans la boucle de commande numérique, tout en maintenant des performances dynamiques élevées, des temps de développement rapide, et une structure reconfigurable. Ces compensateurs discrets doivent également avoir des temps de réponse rapide, avoir une déviation de la tension minimale et avoir, pour un étage de puissance donné, un temps de récupération rapide de la tension. Ces performances peuvent être atteintes par des compensateurs discrets

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7

Ziegler, Silvio. "New current sensing solutions for low-cost high-power-density digitally controlled power converters." University of Western Australia. School of Electrical, Electronic and Computer Engineering, 2009. http://theses.library.uwa.edu.au/adt-WU2010.0077.

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[Truncated abstract] This thesis studies current sensing techniques that are designed to meet the requirements for the next generation of power converters. Power converters are often standardised, so that they can be replaced with a model from another manufacturer without an expensive system redesign. For this reason, the power converter market is highly competitive and relies on cutting-edge technology, which increases power conversion efficiency and power density. High power density and conversion efficiency reduce the system cost, and thus make the power converter more attractive to the cus

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8

Wan, Kai. "Advanced current-mode control techniques for DC-DC power electronic converters." Diss., Rolla, Mo. : Missouri University of Science and Technology, 2009. http://scholarsmine.mst.edu/thesis/pdf/Wan_09007dcc80642d38.pdf.

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Thesis (Ph. D.)--Missouri University of Science and Technology, 2009.<br>Vita. The entire thesis text is included in file. Title from title screen of thesis/dissertation PDF file (viewed May 4, 2009) Includes bibliographical references.

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9

Al-Atrash, Hussam. "INTEGRATED TOPOLOGIES AND DIGITAL CONTROL FOR SATELLITE POWER MANAGEMENT AND DISTRIBUTION SYSTEMS." Doctoral diss., University of Central Florida, 2007. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3287.

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This work is focused on exploring advanced solutions for space power management and distribution (PMAD) systems. As spacecraft power requirements continue to increase, paralleled by the pressures for reducing cost and overall system weight, power electronics engineers will continue to face major redesigns of the space power systems in order to meet such challenges. Front-end PMAD systems, used to interface the solar sources and battery backup to the distribution bus, need to be designed with increased efficiency, reliability, and power density. A new family of integrated single-stage power con

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10

Gallé, William Preston. "MEMS-based fabrication of power electronics components for advanced power converters." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/45821.

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Fabrication technology, based on MEMS processes, for constructing components for use in switched-mode power supplies are developed and presented. Capacitors, magnetic cores, and inductors based on sacrificial multilayer electroplating are designed, fabricated, and characterized. Characterization of the produced inductors' core losses at high frequency and high flux is presented, confirming the aptness of the featured microfabrication processes for reducing eddy current losses in magnetic cores. As well, the demonstration of the same inductors in DC/DC converters at high switching frequencies,

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11

Li, Bo. "Conception et test de cellules de gestion d'énergie à commande numérique en technologies CMOS avancées." Phd thesis, INSA de Lyon, 2012. http://tel.archives-ouvertes.fr/tel-00782429.

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Les technologies avancées de semi-conducteur permettent de mettre en œuvre un contrôleur numérique dédié aux convertisseurs à découpage, de faible puissance et de fréquence de découpage élevée sur FPGA et ASIC. Cette thèse vise à proposer des contrôleurs numériques des performances élevées, de faible consommation énergétique et qui peuvent être implémentés facilement. En plus des contrôleurs numériques existants comme PID, RST, tri-mode et par mode de glissement, un nouveau contrôleur numérique (DDP) pour le convertisseur abaisseur de tension est proposé sur le principe de la commande prédicti

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12

Han, Sangtaek. "High-power bi-directional DC/DC converters with controlled device stresses." Diss., Georgia Institute of Technology, 2012. http://hdl.handle.net/1853/49010.

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The objective of the research is to develop a cost-effective high-power bi-directional dc/dc converter with low total-device ratings, reduced system parasitic effects, and a wide input/output range. Additional objectives of the research are to develop a small-signal model and control methods, and to present performance characterizations. Device stresses in the proposed topology are controlled to maintain minimal levels by varying the duty ratio and phase-shift angle between the primary and the secondary bridges, which results in a low total-device rating, when compared to conventional bi-direc

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13

Zhou, Jie. "Modeling and measurement of switching converters." Thesis, Virginia Tech, 1985. http://hdl.handle.net/10919/45662.

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<p>The methods of modeling and measurement of switching converters are discussed in this thesis. The average model is very simple but is inaccurate when modulation frequencies approach to one-half of the switching frequency. The discrete model can accurately predict the modulation envelope of the output voltage, but it is very complex. The discreteâ average model combines both average and discrete modeling techniques so that it possesses the advantages of both techniques. The experimental results show the deficiency of analog modulation technique for loop gain measurement under certain circum

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14

Early, Adrian Bruce. "A high-accuracy, DC-calibrated, monolithic, delta-sigma analog-to-digital converter." Diss., The University of Arizona, 1990. http://hdl.handle.net/10150/185072.

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Delta-Sigma Analog-to Digital Converters have recently become important for providing high resolution with monotonicity and reasonable signal-to-distortion ratings without the need for laser trimming techniques. This has come about because of the recent ability to combine both extensive digital computation power, and switched-capacitor analog circuitry on a monolithic chip. Delta-Sigma converters have primarily been used, however, in signal processing applications, notably digital audio, but not for instrumentation. The purpose of this dissertation is to provide a high accuracy, DC-accurate, D

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15

Tymerski, Richard P. E. "Topology and analysis in power conversion and inversion." Diss., Virginia Polytechnic Institute and State University, 1988. http://hdl.handle.net/10919/77852.

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Basic PWM dc-to-dc converter structure is examined wherein a basic substructure of converters, known as a converter cell, is identified. Converter cells can be used in generation and classification of basic PWM dc-to-dc converters. A large number of new converters are generated. Converter analysis, whereby the nonlinear response of the system to perturbations in the control or the input, is determined by two different methods. A classical approach to nonlinear systems analysis is first used wherein the system is represented by a Volterra functional series. The alternative approach presente

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16

Hooper, Mark S. "Submicron CMOS programmable analog floating-gate circuits and arrays using DC-DC converters." Diss., Available online, Georgia Institute of Technology, 2005, 2005. http://etd.gatech.edu/theses/available/etd-12032004-155022/unrestricted/Hooper%5FMark%5FS%5F200505%5Fphd.pdf.

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Thesis (Ph. D.)--Electrical and Computer Engineering, Georgia Institute of Technology, 2005.<br>Kucic, Matthew, Committee Member ; Hasler, Paul, Committee Chair ; Heck, Bonnie, Committee Member ; Cressler, John, Committee Member ; Anderson, David, Committee Member. Vita. Includes bibliographical references.

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17

Hamilton, Hymiar. "An impact study of DC protection techniques for shipboard power systems." Master's thesis, Mississippi State : Mississippi State University, 2007. http://library.msstate.edu/etd/show.asp?etd=etd-07062007-144823.

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18

Lopez, Santos Oswaldo. "Contribution to the DC-AC conversion in photovoltaic systems : Module oriented converters." Thesis, Toulouse, INSA, 2015. http://www.theses.fr/2015ISAT0001/document.

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Ces dernières années, un intérêt croissant pour les systèmes électroniques de puissance a été motivé par l'émergence de sources d'énergie distribuées et renouvelables raccordées aux réseaux électriques. Dans ce contexte, la nécessité de topologies de faibles puissances alimentées par quelques modules photovoltaïques, en évitant l'utilisation de transformateurs, a ouvert l'étude de convertisseurs spéciaux et l’étude des stratégies de commande associées afin d’assurer la stabilité, la fiabilité et un rendement élevé du dispositif. Une possible solution est d’utiliser un dispositif générique conn

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19

Hamilton, Christopher. "Control strategy for maximizing power conversion efficiency and effectiveness of three port solar charging station for electric vehicles." Master's thesis, University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/4548.

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Recent trends in the energy sector have provided opportunities in the research of alternative energy sources and optimization of systems that harness these energy sources. With the rising cost of fossil fuel and rising concern about detrimental effects that fossil fuel consumption has on the environment, electric vehicles are becoming more prevalent. A study put out in 2009 gives a prediction that in the year 2025, 20% of new vehicles will be PHEVs. As energy providers become more concerned about a growing population and diminishing energy source, they are looking into alternative energy sourc

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20

Leredde, Alexandre. "Etude, commande et mise en œuvre de nouvelles structures multiniveaux." Thesis, Toulouse, INPT, 2011. http://www.theses.fr/2011INPT0094/document.

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Les structures de conversion multiniveaux permettent de convertir en moyenne tension et forte puissance. Celles-ci sont construites à partir de cellules de commutations et permettent d’augmenter le courant et la tension en entrée ou en sortie. Ces structures sont appelées multiniveaux car les formes d’ondes des tensions en sortie permettent d’avoir plus de deux niveaux de tension différents. Les différentes structures peuvent être classées dans différentes catégories tel que la mise en série de pont en H, les convertisseurs multicellulaires série ou parallèle ou encore les structures utilisant

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21

Meyer, Eric David. "New Technologies to Improve the Transient Response of Buck Converters." Thesis, 2010. http://hdl.handle.net/1974/5418.

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As the speed and power demands on Buck converters continue to increase, it has become time to replace the linearly-controlled conventional Buck converter. Digital circuits, such as microprocessors, are requiring higher dynamic currents, at lower voltages, than ever before. Traditionally, such Buck converters have been controlled by linear voltage-mode or current-mode control methods. While these controllers offer such advantages as fixed switching frequencies and zero steady-state error, their reaction speed is inherently limited by their bandwidth which is a fraction of the converter switch

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22

Radic, Aleksandar. "Practical Volume-reduction Strategies for Low-power High-frequency Switch Mode Power Supplies." Thesis, 2014. http://hdl.handle.net/1807/44131.

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The miniaturization of dc–dc switch-mode power supplies (SMPS) is of a key importance in volume-sensitive portable devices, such as cell phones, tablet computers, and digital cameras. In these systems, multiple SMPS are required to provide well regulated voltage and power to various electronic components such as the central processing unit (CPU) and random-access memory (RAM). The combined volume, weight, and surface area footprint of these SMPS is usually the largest component. Traditionally, SMPS volume reduction has been achieved through increased switching frequencies; however, for p

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23

Darabi, Mostafa. "A new family of dc-dc-ac power electronics converters." Thesis, 2014. http://hdl.handle.net/1805/5851.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>This thesis proposes a family of non-isolated bidirectional converter in order to interface dc and ac variables. Such power electronics solutions guarantee: (i) bidirectional power flow between dc and ac converter sides, (ii) independent control in both converter sides, (iii) high level of integration with a reduction of one power switch and its drive circuits, (iv) implementation of two functions by using a unique power conversion stage and (v) reduction of the capacitor losses. Despite proposing new power converter solutions,

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24

Lusney, John Travis. "Novel Digital Controller for Multi Full-Bridge DC/DC Converter." Thesis, 2007. http://hdl.handle.net/1974/716.

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Distributed generation that utilizes 5-10kW Solid Oxide Fuel Cells requires power electronics to optimize the overall system efficiency while reducing the cost. The Adaptive Energy Zero-Voltage-Switching Phase-Shift-Modulated Full-Bridge (AE-ZVS-PSM-FB) topology meets these criteria under all loading conditions, but suffers from complexity associated with an analog control implementation. This thesis presents a novel Look-Up-Table (LUT) based digital controller required for such converter. The applied design approach also reduces the design time and controller requirements, which in turn de

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25

Du, Toit Francois Paulus. "A general solution to optimising the DC-bus energy storage requirements in single phase inverers." Thesis, 2018. https://hdl.handle.net/10539/24893.

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Thesis is submitted in fulfilment of the requirements for the degree of Master of Science in Engineering to the Faculty of Engineering and Built Environment, University of the Witwatersrand, Johannesburg 2018<br>Power electronic converters that convert DC to AC, or vice versa, require an energy buffer between the AC and DC ports of the converter to compensate for the instantaneous power mismatch. Electrolytic capacitors are mostly used for these buffering applications because of the high energy density when compared to other capacitors, but unfortunately this type of capacitor also has low rel

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26

Simpson, Charles john. "Tegnologie van hibriede drywingselektroniese mutators met 'n hoëfrekwensietussenkring en veldgestuurde skakelaars." Thesis, 2014. http://hdl.handle.net/10210/9842.

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M.Ing. (Electrical And Electronic Engineering)<br>DC to AC converters are used daily in industry, shipping and aviation as power .. supplies, standby power supplies or uninterrupted power supplies. Power levels vary from a few watts to several megawatts. This thesis investigates a composite converter with a high frequency link as such a DC to AC converter. There are two basic building blocks, the primary inverter as a push-pull inverter and the secondary converter as a cyclo-converter. A existing 2.5kVA system with bipolar transistors in the primary inverter and asymmetrical thyristors in the

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27

Liu, Kaiyang. "A Selective Polarity DC-DC Converter with Virtually Infinite Voltage Levels." Thesis, 2016. http://hdl.handle.net/1805/10929.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>This research introduces a new design of a converter modified from SEPIC converter (Single end primary inductive converter), capable of generating desired voltage levels and polarities. The new switching converter topology allows for boost and buck of the input voltage theoretically achieving infinite positive and negative voltage levels. The proposed topology utilizes single high frequency switch to perform the power conversion which simplifies the design of the gate driver, but meanwhile, it still retains the ability to provide a w

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28

Zaman, Mohammad Shawkat. "A Current Re-distribution Scheme for Improved Energy Harvesting in Concentrating Photovoltaic Systems Using Fine-grained dc-dc Conversion." Thesis, 2013. http://hdl.handle.net/1807/35150.

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This thesis presents a distributed power-management architecture for concentrating photovoltaic (CPV) systems. Specifically, the Δ-conversion scheme with voltage equalization is analyzed and verified for the CPV system from Morgan Solar, Inc. This architecture uses inverting buck-boost converters, denoted Δ-converters, which equalize the voltages of neighbouring CPV cells in a series-connected string of cells and improve the systems tolerance to parameter variations. The power benefits of Δ-conversion and the Δ-converter current distributions are investigated using statistical simulations. The

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29

Salve, Rima. "PV Based Converter with Integrated Battery Charger for DC Micro-Grid Applications." Thesis, 2014. http://hdl.handle.net/1805/6108.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>This thesis presents a converter topology for photovoltaic panels. This topology minimizes the number of switching devices used, thereby reducing power losses that arise from high frequency switching operations. The control strategy is implemented using a simple micro-controller that implements the proportional plus integral control. All the control loops are closed feedback loops hence minimizing error instantaneously and adjusting efficiently to system variations. The energy management between three components, namely, the photovol

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30

Salgado, César Eduardo Marques. "Desenvolvimento dos conversores de potência para o sistema de alimentação de uma microrrede isolada baseada em energias renováveis." Master's thesis, 2018. http://hdl.handle.net/1822/60000.

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Dissertação de mestrado em Engenharia Eletrónica e de Computadores<br>A energia elétrica tem um papel extremamente importante no desenvolvimento de uma região, bem como na melhoria da qualidade de vida do ser humano. É assim fundamental eletrificar regiões isoladas e com elevadas taxas de subdesenvolvimento. A eletrificação da grande maioria destas regiões isoladas, passa pela produção local de energia recorrendo a fontes de energia renovável, quer por razões logísticas quer ambientais. Nesta dissertação são apresentados e descritos, os sistemas de eletrónica de potência que permitem implemen

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31

Gulpinar, Feyzullah. "A non-conventional multilevel flying-capacitor converter topology." Thesis, 2014. http://hdl.handle.net/1805/6299.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>This research proposes state-of-the-art multilevel converter topologies and their modulation strategies, the implementation of a conventional flying-capacitor converter topology up to four-level, and a new four-level flying-capacitor H-Bridge converter confi guration. The three phase version of this proposed four-level flying-capacitor H-Bridge converter is given as well in this study. The highlighted advantages of the proposed converter are as following: (1) the same blocking voltage for all switches employed in the con fig

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