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Rozprawy doktorskie na temat „High Voltage Power Supply (HVPS)”

Autor: Grafiati

Data publikacji: 6 września 2023

Data aktualizacji: 31 lipca 2025

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1

Beikoff, Geoffrey Noel. "A high power, high voltage switching power supply." Thesis, Queensland University of Technology, 1992. https://eprints.qut.edu.au/36226/1/36226_Beikoff_1992.pdf.

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A switching power supply to drive magnetrons for microwave heating has been designed, prototyped and tested. The magnetron has an rf power output of 6000 watts and requires a DC voltage of 7200 volts at a current of approximately 1.1 amps for a power input to the magnetron of 8000 watts. Six magnetrons are to be connected per railway tanker for heating the tankers at a railway terminus. The power supply has been designed for small size, efficiency and reliability. Current technology has been used. Insulated Gate Bipolar Transistors (IGBT) and power MOSFETs, both of moderately high curr

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Zabihi, Sasan. "Flexible high voltage pulsed power supply for plasma applications." Thesis, Queensland University of Technology, 2011. https://eprints.qut.edu.au/48137/1/Sasan_Zabihi_Sheykhrajeh_Thesis.pdf.

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Demands for delivering high instantaneous power in a compressed form (pulse shape) have widely increased during recent decades. The flexible shapes with variable pulse specifications offered by pulsed power have made it a practical and effective supply method for an extensive range of applications. In particular, the release of basic subatomic particles (i.e. electron, proton and neutron) in an atom (ionization process) and the synthesizing of molecules to form ions or other molecules are among those reactions that necessitate large amount of instantaneous power. In addition to the decompositi

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3

Weiser, Nicholas. "Dual High-Voltage Power Supply for use On Board a CubeSat." DigitalCommons@CalPoly, 2014. https://digitalcommons.calpoly.edu/theses/1204.

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Since their conception in 1999, CubeSats have come and gone a long way. The first few that went into space were more of a “proof of concept,” and were more focused on sending simple data and photographs back to Earth. Since then, vast improvements have been made by over 40 universities and private firms, and now CubeSats are beginning to look towards interplanetary travel. These small satellites could provide a cost effective means of exploring the galaxy, using off the shelf components and piggy-backing on other launch vehicles with more expensive payloads. However, CubeSats are traditionally

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Jacobs, D. M. (Danver Maxwill). "Voltage control of medium to high power three-phase inverter supply systems." Thesis, Stellenbosch : Stellenbosch University, 2001. http://hdl.handle.net/10019.1/52608.

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Thesis (MScEng)--University of Stellenbosch, 2001.<br>ENGLISH ABSTRACT: In this thesis a new voltage control method is developed for a three-phase inverter supply system. The inverter supply system consist of a Permanent Magnet Generator, a three-phase rectifier, a three-phase inverter plus LC-filter and a three-phase transformer in series. This system supplies power to a network or to a stand-alone load. The main focus of this thesis is on the control aspects of the inverter and the LC-filter. Different voltage control systems are investigated and compared to each other. From these met

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Myhre, Jørgen Chr. "Electrical Power Supply to Offshore Oil Installations by High Voltage Direct Current Transmission." Doctoral thesis, Norwegian University of Science and Technology, Faculty of Information Technology, Mathematics and Electrical Engineering, 2001. http://urn.kb.se/resolve?urn=urn:nbn:no:ntnu:diva-383.

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<p>This study was initiated to investigate if it could be feasible to supply offshore oil installations in the North Sea with electrical power from land. A prestudy of alternative converter topologies indicated that the most promising solution would be to investigate a conventional system with reduced synchronous compensator rating.</p><p>The study starts with a summary of the state of power supply to offshore installations today, and a short review of classical HVDC transmission. It goes on to analyse how a passive network without sources influences the inverter. The transmission, with its cu

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Devine, Phillip John. "A controllable, variable waveform, high voltage, switched mode power supply for electrostatic precipitators." Thesis, University of Leicester, 2000. http://hdl.handle.net/2381/30176.

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Increased awareness of the effects of atmospheric pollution has meant that electrostatic precipitators, which have been used since the early part of this century to separate particulate matter from process gas streams, are now required to achieve particulate collection efficiencies in excess of 99.7% for a number of processes. Increasingly stringent legislation concerning industrial particulate emissions has challenged the precipitation industry to consider how equipment can be improved to reduce, in particular, heavy metal and respirable size particulate discharges. Electrostatic precipitator

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Fu, Dianbo. "Improved Resonant Converters with a Novel Control Strategy for High-Voltage Pulsed Power Supplies." Thesis, Virginia Tech, 2004. http://hdl.handle.net/10919/34432.

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The growing demand for high voltage, compact pulsed power supplies has gained great attention. It requires power supplies with high power density, low profile and high efficiency. In this thesis, topologies and techniques are investigated to meet and exceed these challenges. Non-isolation type topologies have been used for this application. Due to the high voltage stress of the output, non-isolation topologies will suffer severe loss problems. Extremely low switching frequency will lead to massive magnetic volume. For non-isolation topologies, PWM converters can achieve soft switching to i

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GARCIA, ORDÓÑEZ LUIS GUILLERMO. "High Voltage Power Supply System and Front-End DAQ on FPGA/SoC for High Energy Particle Detectors." Doctoral thesis, Università degli Studi di Trieste, 2022. http://hdl.handle.net/11368/3030919.

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High energy physics experiments are based on complex detectors built with novel techniques frequently configured in multichannel arrays. This complexity creates the need for custom-made related instrumentation and methods not often found in commercial devices. The research activity presented in this thesis aims at developing a distributed High Voltage Power Supply System (HVPSS) network for hybrid Micro-pattern Gaseous Detectors (MPGD) like the ones used in the RICH-1 detector of the COMPASS experiment at CERN. The hardware design was tested in several conditions including test beams at CERN i

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9

Yang, Gang. "Design of a High Efficiency High Power Density DC/DC Converter for Low Voltage Power Supply in Electric and Hybrid Vehicles." Thesis, Supélec, 2014. http://www.theses.fr/2014SUPL0011/document.

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Cette thèse traite de la conception d’un convertisseur DC / DC destiné aux véhicules électriques et hybrides (2,5 kW, 400V/14V, 250kHz). Dérivé de la topologie LLC à résonance, ce convertisseur bénéficie des nombreux avantages propres à cette structure particulière. C’est ainsi que le prototype réalisé présente un rendement très élevé, une densité de puissance très forte avec des perturbations EMI très réduites. La première partie de cette thèse est consacrée à l’analyse théorique du circuit LLC afin de dégager un modèle de conversion et une stratégie de contrôle adaptée à l’application visée.

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10

Yan, Ning. "High-frequency Current-transformer Based Auxiliary Power Supply for SiC-based Medium Voltage Converter Systems." Thesis, Virginia Tech, 2020. http://hdl.handle.net/10919/101507.

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Auxiliary power supply (APS) plays a key role in ensuring the safe operation of the main circuit elements including gate drivers, sensors, controllers, etc. in medium voltage (MV) silicon carbide (SiC)-based converter systems. Such a converter requires APS to have high insulation capability, low common-mode coupling capacitance (Ccm ), and high-power density. Furthermore, considering the lifetime and simplicity of the auxiliary power supply system design in the MV converter, partial discharge (PD) free and multi-load driving ability are the additional two factors that need to be addressed in t

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11

Hu, Boxue. "Challenges and Solutions of Applying Medium-Voltage Silicon Carbide Devices in Medium and High-Voltage Systems." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1565967269661455.

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Sun, Keyao. "Protection, Control, and Auxiliary Power of Medium-Voltage High-Frequency SiC Devices." Diss., Virginia Tech, 2021. http://hdl.handle.net/10919/103743.

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Due to the superior characteristics compared to its silicon (Si) counterpart, the wide bandgap (WBG) semiconductor enables next-generation power electronics systems with higher efficiency and higher power density. With higher blocking voltage available, WBG devices, especially the silicon carbide (SiC) metal-oxide-semiconductor field-effect transistor (MOSFET), have been widely explored in various medium-voltage (MV) applications in both industry and academia. However, due to the high di/dt and high dv/dt during the switching transient, potential overcurrent, overvoltage, and gate failure can

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13

Seimbille, Denis. "Design of power supply system in DC electrified transit railways - Influence of the high voltage network." Thesis, KTH, Elektrisk energiomvandling, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-153924.

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Urban rail systems such as subways and trams transport millions of people every day, oering a high level of service. Most of these systems are fed by direct current (DC). The design of the power supply network of DC electried transit railways is of great importance and requires the use of simulation models. The power supply network is composed of a high voltage network (fed with AC) linked to a traction network (fed with DC) by traction substations. Many simulation models ignore the high voltage network in the design process whereas it has a signicant inuence on the results. A Newton-Raphson a

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14

López, Julià Toni. "Prospects of voltage regulators for next generation computer microprocessors." Doctoral thesis, Universitat Politècnica de Catalunya, 2010. http://hdl.handle.net/10803/77908.

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Synchronous buck converter based multiphase architectures are evaluated to determine whether or not the most widespread voltage regulator topology can meet the power delivery requirements of next generation computer microprocessors. According to the prognostications, the load current will rise to 200A along with the decrease of the supply voltage to 0.5V and staggering tight dynamic and static load line tolerances. In view of these demands, researchers face serious challenges to bring forth compliant solutions that can further offer acceptable conversion efficiencies and minimum mainboa

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15

Patel, Prashun R. "An improved method of regulating a high voltage power supply for use in oil well logging applications." Thesis, Massachusetts Institute of Technology, 1994. http://hdl.handle.net/1721.1/34072.

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Ghasemi, Negareh. "Improving ultrasound excitation systems using a flexible power supply with adjustable voltage and frequency to drive piezoelectric transducers." Thesis, Queensland University of Technology, 2012. https://eprints.qut.edu.au/61091/1/Negareh_Ghasemi_Thesis.pdf.

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The ability of a piezoelectric transducer in energy conversion is rapidly expanding in several applications. Some of the industrial applications for which a high power ultrasound transducer can be used are surface cleaning, water treatment, plastic welding and food sterilization. Also, a high power ultrasound transducer plays a great role in biomedical applications such as diagnostic and therapeutic applications. An ultrasound transducer is usually applied to convert electrical energy to mechanical energy and vice versa. In some high power ultrasound system, ultrasound transducers are applied

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Boora, Arash Abbasalizadeh. "Flexible high-power multi DC-DC converters for train systems." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/33208/1/Arash_Boora_Thesis.pdf.

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This thesis reports on the investigations, simulations and analyses of novel power electronics topologies and control strategies. The research is financed by an Australian Research Council (ARC) Linkage (07-09) grant. Therefore, in addition to developing original research and contributing to the available knowledge of power electronics, it also contributes to the design of a DC-DC converter for specific application to the auxiliary power supply in electric trains. Specifically, in this regard, it contributes to the design of a 7.5 kW DC-DC converter for the industrial partner (Schaffler and As

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18

Циганчук, Т. Г., та А. В. Булашенко. "Усунення генерації в іоністорних джерелах живлення". Thesis, Сумський державний університет, 2018. http://essuir.sumdu.edu.ua/handle/123456789/67630.

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Мікросхеми керування зарядом та разрядом іоністорів виробляються декількома ведучими виробниками. За рахнок того, що напруга на цих конденсаторах змінюється за рахунок їх заряда та разряда, звичайно виробники вмикають у склад таких мікросхем DC/DC перетворювачі, перетворюючі змінну напругу в стабільну, що підходить для живлення іншої системи. Ці мікросхеми, що випускають, продовжують підтримувати стабільну напругу живлення до тих пір, доки напруга на іоністорі не зменшиться до визначеного рівня. Однако коли напруга доходить до цього рівня, стандартні мікросхеми починають вести себе неадекват

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Gábel, Marián. "Spínaný stejnosměrný laboratorní zdroj 30V 60A." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442786.

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The master thesis deals with design of a switched DC power supply with output parameters of 30 V 60 A. The power supply uses the connection of two single switch forward converters with opposite phase. The topology was chosen based on a comparison of specific schematics in the first part. The body of the thesis is covered in chapter which deals with design and analysis of power circuits of the converter. The chapter describes detailed design of pulse transformers, dimensioning of semiconductors and cooling system of the converter. For lower power losses, the system of synchronous rectifying is

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20

Gutierrez, Saenz Juan. "Energy analysis and cost estimation of a potential On-shore Power Supply system in the Port of Gävle." Thesis, Högskolan i Gävle, Energisystem och byggnadsteknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-30378.

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The Port of Gävle is one of the most important harbours in Sweden as far as size and freight capacity is concerned. Marine traffic is increasing greatly, thus environmental pollution as well as noise and vibrations are of major concern in port cities. Shore to ship power supply systems might be a feasible solution to curtail emissions because the Auxiliary Engines are instead shut down while the ship stays alongside the quay. The literature review shows they are reliable and very appealing in all respects, thereby contributing to sustainable development. Taking into account the kind of vessels

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Tejmlová, Lenka. "Laboratorní zdroj s vysokou účinností." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2011. http://www.nusl.cz/ntk/nusl-219100.

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The project shows the problems of power supply in electrical engineering. It describes the general parameters of these types of supplies and presents their characteristics. Based on these findings, it is also focused on the selection of specific elements of the laboratory supply, to reach the given parameters. It contains the recalculations of the parameters of other additional components. The overall scheme of the supply is divided into several blocks, thematically corresponded to subchapters. According to the accomplished concept the laboratory supply is realized and its parameters had been

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Zemánek, Miroslav. "Užití výkonových měničů ve zdrojích vysokého napětí." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-233463.

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This work is concerned with power inverters for alternate high voltage power sources. The theoretical part describes the topology of inverters that can be used in alternate power sources. A model of voltage transformer is described in details to better understand the parasitic effects that are inevitably present in high voltage power sources and, therefore, have to be taken into consideration at the design of high voltage power sources. The work is oriented to problems of alternate high voltage power sources for ozone generators. This is the reason, why the theoretical and, partially, also the

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Pocius, Lukas. "Aukštosios įtampos programuojamo šaltinio sukūrimas ir jo parametrų tyrimas." Master's thesis, Lithuanian Academic Libraries Network (LABT), 2011. http://vddb.laba.lt/obj/LT-eLABa-0001:E.02~2011~D_20110615_175842-20769.

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Baigiamajame darbe suprojektuotas ir ištirtas programuojamas aukštosios įtampos maitinimo šaltinis. Įvade išnagrinėti programuojami aukštosios įtampos maitinimo šaltiniai, jų taikymo ir panaudojimo sritys. Taip pat išnagrinėti GPIB sąsajos privalumai ir trūkumai. Analitinėje dalyje smulkiai nagrinėjama maitinimo šaltinių sandara ir veikimo principas. Pateikiamos kai kurių maitinimo šaltinio sandaros elementų grandinių schemos. Taip pat analitinėje dalyje smulkiai išnagrinėtas GPIB sąsajos veikimo principas ir šios sąsajos taikymo galimybės. Projektinėje dalyje ištirtas aukštosios įtampos maiti

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Ptáček, Karel. "Vysokonapěťové struktury pro galvanickou iziolaci v integrovaných obvodech." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-417477.

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Tato dizertační práce představuje novou techniku laterární rezonanční vazby, která je využita v návrhu galvanicky izolovaného posouvače úrovně, který je následně implementován v 800 V půlmůstkovém kontroléru pro průmyslové aplikace. Ve srovnání s tradičními galvanickými izolátory jsou výrobní náklady tohoto řešení nižší. Pro aplikace vyžadující vyšší úroveň galvanické izolace je popsán následný vývoj galvanicky izolovaného posouvače úrovně, který využívá pouze jeden galvanicky oddělený posouvač úrovní pro komunikaci v obou směrech, což výrazně snižuje plochu struktury izolátoru. Jako součást n

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Saint-Laurent, Martin. "Modeling and Analysis of High-Frequency Microprocessor Clocking Networks." Diss., Georgia Institute of Technology, 2005. http://hdl.handle.net/1853/7271.

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Integrated systems with billions of transistors on a single chip are a now reality. These systems include multi-core microprocessors and are built today using deca-nanometer devices organized into synchronous digital circuits. The movement of data within such systems is regulated by a set of predictable timing signals, called clocks, which must be distributed to a large number of sequential elements. Collectively, these clocks have a significant impact on the frequency of operation and, consequently, on the performance of the systems. The clocks are also responsible for a large fraction of the

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26

Ghossein, Layal. "Alimentation de circuit de commande rapprochée « Gate-drive » pour nouveaux convertisseurs de puissance haute tension." Thesis, Lyon, 2018. http://www.theses.fr/2018LYSEI016.

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Le transport d’énergie par des lignes HVDC constitue le principal réseau de transmission d’énergie électrique du futur. Les convertisseurs de puissance (par exemple de type MMC) qui constitueront ce réseau devront être capables de gérer des tensions de l’ordre de centaines de kilovolts ce qui rend critique l’alimentation des dispositifs de contrôle (gate-drive) de ces convertisseurs. Il est nécessaire de concevoir des solutions qui garantissent l’alimentation de ces gate-drives avec une isolation.Pour ce faire, un circuit basé sur le principe du flyback et utilisant un JFET normalement passant

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Uherek, Jaromír. "Návrh vysokonapěťového zdroje sinusového napětí." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2013. http://www.nusl.cz/ntk/nusl-220114.

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Object of the master´s thesis is design of a high voltage power supply for testing insulation materials with output voltage 50 V - 2 kV at fixed frequency 50 Hz. The power supply is controlled by personal computer and measured data are sent back to the personal computer. The Universal Serial Bus (USB) is used for communication between the PC and the device.

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Španěl, Petr. "Spínané zdroje." Doctoral thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-433024.

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This thesis deals with switched mode power supplies based on resonant principle to achieve high efficiency. Several ways of switched mode power supplies optimalisation are described as part of the work to achieve better efficiency. Priparily, the new generation of switching elements based on SiC and resonant topology are used to achieve significant switching loss minimization. The selected resonant topology is simualted in detail and then built with focus on high efficiency. The main content of the work consists in the design and realization of the switched mode power supply with selected cont

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LAVIOLA, MICHELE. "LNG as the future marine fuel, Waste Heat Recovery Systems & Cold Ironing solutions for eco-friendly maritime transport." Doctoral thesis, Università degli studi di Genova, 2018. http://hdl.handle.net/11567/930196.

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Nowadays a regulatory framework regarding the pollutant emissions abatement, both at international and local level, significantly interests the maritime sector. To comply with the latest environmental rules, a new approach to ship design and a renewed way to operate the ship are need both in navigation and in harbour. This PhD Thesis aims to investigate on the positive features offered by the LNG fuel, more eco-friendly than the traditional marine fuel oils. In the first part of the research, the performance comparison between two marine engines, fuelled by natural gas and diesel oil res

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Joshi, T. G. Subhash. "Power Electronic Technologies for Medium and High Power High Voltage Power Supplies." Thesis, 2017. http://etd.iisc.ac.in/handle/2005/4322.

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The performance of systems used in various high voltage applications depend majorly on the output voltage ripple of High Voltage Power Supplies (HVPS). One of the failure mode of microwave tube (MWT) commonly used in these applications is due to the energy accumulation above the specified limit during fault events due to higher stored energy in HVPS. This demands either a protection for MWT or reduced ripple voltage without increasing the stored energy. This thesis investigates a protection device for MWT that operate with MW power level HVPS, and design method to reduce the output voltage ri

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Hung-WenChen and 陳鴻文. "Analysis and Implementation of High Voltage Power Supply." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/83599253900072512509.

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Li, Ren-Hao, and 李仁豪. "Modular Design of Adjustable High Voltage Pulsed Power Supply." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/8u46ys.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>107<br>This thesis aims to achieve a modular design of an adjustable high voltage pulsed power supply. The proposed system includes a DC/DC converter and a circuit for controlling output pulse width. The DC/DC converter is structured by full-bridge LLC resonant circuit as a basic power module and combines through input parallel output series (IPOS) form to increase the output voltage and output power. Moreover, the digital controller is incorporated with a human-machine interface, where the different output specifications can be obtained according to the preset param

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Ke, Chih Wei, and 柯智偉. "Development of a High-Frequency High-Voltage Pulse Power Supply System." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/03556125194806504443.

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碩士<br>南台科技大學<br>電機工程系<br>97<br>This thesis discusses control methods of high-frequency high-voltage pulse power supply system. It can be applied to the dielectric barrier discharging, corona discharging, and so on. The proposed structure’s first stage is active power factor corrector, It is provides steady DC voltage by boost AC-DC conveter to second stage’s full-bridge ZVS converter to get the desired voltage. The second stage is controlled by pulse width modulation and pulse density modulation, As the pulse width modulation can’t control the system in low power, range a pulse density modulat

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Kuo-YiHsiao and 蕭國毅. "Design and Implementation of a High-Voltage Power Supply with Power Factor Correction." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/36246230702646579554.

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K, Aroul. "Development of efficient power supply For low voltage high current Applications." Thesis, 2009. http://ethesis.nitrkl.ac.in/2760/1/mtech_research_Thesis.pdf.

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In order to meet demands for faster and more efficient data processing, modern microprocessors are being designed with lower voltage implementations. The continuous packing of more devices on a single processor chip is increasing its current demands calling for an aggressive power management. These demands, in turn require special power supplies to provide lower voltages with higher currents capabilities for microprocessors. This work presents a modified low voltage high current Voltage Regulator Module (VRM) technology for desktop computers, and portable applications. The developed advanced V

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Zeng, You-Wei, and 曾宥瑋. "Study and Implementation of a High-Voltage DC Power Supply for Wide-Range Output Voltage." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/51874345130158260233.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>103<br>This thesis mainly develops a high-voltage DC power supply with a wide-range of adjustable output voltage. It focuses on the design and control of a full-bridge phase-shifted series resonant converter. The proposed full-bridge phase-shift series resonant converter features a novel two-mode operation. When low voltage output, it operates in phase-shifted PWM mode. When high voltage output, it operates in series resonant mode. In both modes, the zero voltage switching can be achieved during dead times. Therefore, the proposed converter can realize the target of

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Chia-LunLiu and 劉加侖. "Study and Implementation of High Voltage Power Supply for X-ray Generator." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/31444008637560923764.

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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>98<br>In this thesis, a high voltage power supply for X-ray generator is studied and implemented. X-ray power supply is composed of high voltage power supply and filament circuit. The high voltage power supply consists of a full-bridge converter, a series resonant tank, a high step-up transformer and a voltage multiplier, which utilizes phase-shift control scheme to control the power supply for achieving high voltage output. The filament circuit employs push-pull topology to generate preheated power. When the filament is preheated and the high voltage output termi

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Hsu, Ming Shyang, and 許明祥. "Implementation of High Voltage Power Supply Applied to the Traveling Wave Tube." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/94452542343522285244.

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碩士<br>輔仁大學<br>電子工程學系<br>92<br>A high voltage power supply applied to the traveling wave tube (TWT) is proposed in this paper. A Buck current-fed full bridge converter is used to reduce the effect of leakage inductances of high voltage transformer for improving the performance. The switching frequency of the converter is chosen at 100 kHz to reduce the size and weight of power supply. The transformer windings utilize 19 kV insulation wire. The high voltage output rectifier and double voltage multiplier provided the need for multiple high voltage outputs for cathode, collector-1, collector-2 of

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Chen, Cun-Min, and 陳存旻. "An Adjustable Pulse-width High Voltage Pulsed Power Supply with Digital Controller." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/pw3u87.

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碩士<br>國立臺灣科技大學<br>電機工程系<br>106<br>This thesis presents an adjustable pulse-width high voltage pulsed power supply based on the full-bridge LLC resonant topology with a digital controller. First, the system transfer function including parastic capacitance effect is derived to select the resonant component. Moreover, the proposed system can achieve zero voltage switching to reduce power loss even under pulsed output. In addition, the modified burst PWM control is combined with variable frequency control to eliminate the output voltage spike. Furthermore, the voltage feedback control is implement

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Chang, De-Wei, and 張德威. "Study and Implementation of a DC Power Supply for High-Voltage Capacitor Testing." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/85397133952837459143.

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碩士<br>國立臺灣科技大學<br>電子工程系<br>104<br>This thesis mainly develops a high-voltage DC power supply with wide-range output voltage for high voltage capacitor test. The power stage consists of a buck DC-DC converter and a full-bridge SRC DC-DC converter. The pre-stage buck converter is operated to achieve the proposed voltage adjustment and provide the input voltage for post-stage converter. The post-stage circuit is a full-bridge phase-shifted series resonant converter, which provides 1kW rated power and a wide-range output voltage from 40V to 6kV. A DSP chip TMS320F28035 developed by Texas Instrumen

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Yang, Min-Nan, and 楊敏男. "Effects and Improvements of Voltage Sags on High-Tech Industry Power Supply System." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/28410460109047005899.

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碩士<br>國立彰化師範大學<br>電機工程學系<br>99<br>Due to rapid development in the Central Taiwan Science Park (CTSP) of Taiwan, the requirements of electricity consumption grow fast year by year. The high-tech industry has the characteristics of highly sensitive production equipment and intensive production, and thus has great requirements of stable power supply and good power quality. This study is of a high-tech factory in the CTSP as an example, by building power quality monitoring systems, and thus based on the SEMI F47 standard to analyze the reasons and categories of the voltage sags. The results can b

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Chu, Hsin-Yu, and 朱星諭. "A STUDY OF OUTPUT ADJUSTABLE SWITCHING-MODE HIGH POWER DC POWER SUPPLY WITH HIGH EFFICIENCY AND LOW VOLTAGE REGULATION." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/57531397563916727568.

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碩士<br>大同大學<br>電機工程研究所<br>89<br>The purpose of this thesis is to develop a high output power, adjustable switching-mode DC power supply with high efficiency, low ripple factor, and low voltage regulation. The system consists of a 3φ AC controller, a 3φisolating transformer, and DC output active compensating filters. The 3φ switching-mode AC controller with PWM control takes charge of the variable output voltage. A 3φ transformer used for isolating the load and source, and filtering out high frequency harmonics by its inductance effect. The DC output active compensating filter takes c

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Chuang, Ching-Fang, and 莊景芳. "Application of High Voltage and High Frequency Power Supply for the Traveling Wave Tube Circuit System." Thesis, 2001. http://ndltd.ncl.edu.tw/handle/82473277714267789922.

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碩士<br>輔仁大學<br>電子工程學系<br>89<br>ABSTRACT The traveling wave tube is a device that can change the RF signal strength and frequency modification by input control signal. It is widely used in the list of electric application strategies as below: Doppler radar system, electronic counter-measurement system, guide missile system, the satellite communication system, television translating system, the low noise amplifier receiver, high band radar system, the wave source of dot matrix in phase, …and so on. The merit is it only needs the stable input power equipment with the guarantee to work f

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Liu, Wei-Chang, and 劉偉章. "The Design of Very-Low-Voltage Operational Amplifier with High Power Supply Rejection Ratio." Thesis, 2004. http://ndltd.ncl.edu.tw/handle/01331873055627426172.

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碩士<br>國立雲林科技大學<br>電子與資訊工程研究所碩士班<br>92<br>The operational amplifier is the basic and important block in analog circuit. In recent years the supply voltage is scaled down in modern process, it will be a challenge to design the operational amplifier in such low supply voltage. Due to the popularity of mixed-mode integrated circuit design, digital circuit noise can easily couple to analog circuit through power path. A cascode compensation method will be used for enhance analog circuit power supply noise rejection ability. In switch-capacitor application the input capacitor of operational amplifier

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Lin, Bing-Jyun, and 林秉均. "Adjustable Phase-Shifted Full-Bridge High Voltage DC Power Supply with Fully Digital Controller." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/ftj3mr.

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碩士<br>大同大學<br>電機工程學系(所)<br>102<br>An adjustable phase-shifted full-bridge high voltage dc power supply with fully digital controller is proposed in this paper. The proposed controller consists of a user interface control and a phase-shifted full-bridge control. By varying the phase-shifted angle calculated from the parameters entered in the user interface and the sampling output voltage, the output voltage is equal to the preset output voltage. In addition, the proposed system can achieve ZVS under various load conditions to reduce power loss. Next, a multi-range sampling circuit is proposed

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Huang, Jian-Ming, and 黃建銘. "A High Voltage Power Supply with Continuous Adjustable Function for Corona Wind Radiating Application." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/48263873557637781948.

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碩士<br>大同大學<br>電機工程學系(所)<br>102<br>A high voltage power supply with continuous adjustable function for corona wind radiating application is proposed in this thesis. First, the digital control scheme is adopted to overcome the problem for difficultly modulating the output voltage for traditional high voltage power supply. Moreover, the implemented single-transformer incorporating voltage multiplier structure and multi-transformers structure are used to compare the system performances. Next, all the mathematical models in the all operating mode are derived to get the corresponding relationship be

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謝明泰. "Design of a High Voltage Power Supply for Traveling Wave Tube Using Feedforward Compensation." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/02437527780604889816.

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Hsiang, Sing-Syue, and 向星學. "The Research on Diagnosis Wiring Connection with Meter of Facility of High Voltage Power Supply." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/7wqdrq.

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碩士<br>國立臺北科技大學<br>電機工程系所<br>102<br>In the process of power generation, transmission and distribution, the energy measurement is a very important part in power system. The high voltage consumers have watt-hour meter, var-hour meter, high voltage current transformer(CT) and high voltage Potential Transformer(PT) in the Meter of Facility(MOF). The failure of Metering devices contains internal components that operate in wrong way and wiring connect of human’s mistake, That will not accurately calculate the energy of customers. Therefore, the research is practical on the method of fault detection.

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Ku, Ying-Ying, and 古盈霙. "Design and Implementation of a High Voltage Power Supply for Portable Silent-Discharge Ozone Generators." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/04750801814454181922.

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碩士<br>國立清華大學<br>電機工程學系<br>96<br>Ozone has strong sterilization capability and does not cause re-pollution to the environment. However, since it has a short half-life, meaning that it deoxidizes into oxygen in a short time span, makes it impossible to be put in mass production and store in containers. Hence, for small scale applications like in domestic use, a miniaturized ozone generator would be very convenient. The dielectric barrier ozone generator is one of the quietest types among all discharge ozone generators. Therefore, the main purpose of this thesis is focused to design and implement

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De, Rooij Michael Andrew. "Composite converters with cascaded high frequency and pulsed links." Thesis, 2012. http://hdl.handle.net/10210/6169.

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D.Ing.<br>In this dissertation a pulsed DC voltage bus comprising a full wave rectified sinusoidal voltage will be investigated for use as a link voltage. A background study into existing converter topologies for single phase uninterruptable power supplies and three phase front end converters, applicable to the study, is discussed. The definition of the bus voltage will be given as well as the power handling limitations. An experimental 3.3kW single phase UPS and a 3.3kW three phase front end converter using the bus was designed, built, tested and the results presented. The design and modellin

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