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Dissertations / Theses on the topic 'DC-DC Converter'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Patil, Sandeep. "Analysis and Loss Estimation of Different Multilevel DC-DC Converter Modulesand Different Proposed Multilevel DC-DC Converter Systems." University of Toledo / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=toledo1396628125.

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2

Warren, James Raymond III. "Cell modulated DC/DC converter." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/37061.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.<br>Includes bibliographical references (p. 97-99).<br>A very high frequency converter roughly based on a class E topology is investigated for replacing a conventional boost converter circuit. The loss mechanisms in class E inverters are characterized, and metrics are developed to aid in device selection for high frequency converter. A (30 MHz) converter is developed based on a modified class E inverter, single diode rectifier, and cell modulation control architecture based on th

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3

Lian, Yiqing. "DC/DC converter for offshore DC collection network." Thesis, University of Strathclyde, 2016. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=26896.

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Large wind farms, especially large offshore wind farms, present a challenge for the electrical networks that will provide interconnection of turbines and onward transmission to the onshore power network. High wind farm capacity combined with a move to larger wind turbines will result in a large geographical footprint requiring a substantial sub-sea power network to provide internal interconnection. While advanced HVDC transmission has addressed the issue of long-distance transmission, internal wind farm power networks have seen relatively little innovation. Recent studies have highlighted the

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Chadha, Ankit. "Tapped-Inductor Buck DC-DC Converter." Wright State University / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=wright1578488939749599.

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5

Chudý, Andrej. "DC/DC měniče pro průmyslové napájecí zdroje." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442795.

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This diploma thesis deals with design and comparison of selected DC/DC converters, where the better of them is practically realized. The first part of the diploma thesis is focused on the general analysis of DC/DC power converters. The following part is theoretical analysis focused on the first selected topology – step-up converter. The second analysed topology is forward converter with full bridge on the primary side. The theoretical analysis also includes a description of synchronous rectifier, the differences between hard and soft switching, and the types of secondary rectifiers. Another pa

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6

Swaisi, Mahmoud. "DC distribution grid and the associated advanced DC/DC converter." Thesis, University of Nottingham, 2017. http://eprints.nottingham.ac.uk/43494/.

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AC or DC has been in the centre of debate since the early days of the electrical system. DC is already proven to be more economical than AC in transmission at elevated power and voltages. Thus, expanding the use of DC to the distribution grids seems promising as most of the distributed generation such as PV generates initial DC voltages and many of the modern loads are using internal DC buses. Still, in order to extend the use of DC to the distribution level a suitable DC distribution grid architecture and a suitable DC/DC converter to serve it should be explored, which is the focus of this Ph

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7

Jia, Hongwei. "Highly Integrated DC-DC Converters." Doctoral diss., University of Central Florida, 2010. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3194.

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A monolithically integrated smart rectifier has been presented first in this work. The smart rectifier, which integrates a power MOSFET, gate driver and control circuitry, operates in a self-synchronized fashion based on its drain-source voltage, and does not need external control input. The analysis, simulation, and design considerations are described in detail. A 5V, 5-μm CMOS process was used to fabricate the prototype. Experimental results show that the proposed rectifier functions as expected in the design. Since no dead-time control needs to be used to switch the sync-FET and ctrl-F

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8

Pekuz, Cagdas. "Z-source, Full Bridge Dc/dc Converter." Master's thesis, METU, 2010. http://etd.lib.metu.edu.tr/upload/12612775/index.pdf.

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The thesis is related to investigate characteristics and performance of a Z-source full bridge dc/dc converter which boosts the input voltage to a higher output voltage. Zsource structure increases the reliability of the converter according to current fed full bridge dc/dc converter and also reducing the complexity according to two stage design approach (boost followed by full bridge). Operating principles of the Z-source dc-dc converter is described by current and voltage waveforms of the components and mathematical expressions. Moreover, small signal models and transfer functions are derived

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9

Nisar, Kashif. "DC to DC converter for smart dust." Thesis, Linköpings universitet, Institutionen för systemteknik, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-77247.

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This work describes the implementation of DC to DC converter for Smart Dust in 65 nm CMOS technology. The purpose of a DC to DC converter is to convert a battery voltage of 1 Vto a lower voltage of 0.5 V used by the processor. The topology used in this DC to DC converteris of Buck type which converts a higher voltage to lower voltage with the advantage of givinghigh efficiency about 75%. The system uses PWM (Pulse width modulation) technique. It usesnon-overlapping clock generation technique for reducing the power consumption. The systemprovides up to 5 mA load current and has power consumptio

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10

Rezaee, Ali. "WIDE RANGE BI-DIRECTIONAL DC-DC CONVERTER." Thesis, Mittuniversitetet, Institutionen för elektronikkonstruktion, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:miun:diva-41189.

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Bi-directional DC-DC converters are used for applications that require a flow of energy in two directions, while a wide range converter offer efficient operation over a wide range of input and output voltages. However, an efficient technology that is both bi-directional and Wide Input Wide Output (WIWO), currently, does not currently exist. To find a suitable topology, the work began by surveying the existing literature and when a potentially suitable solution was identified, it was evaluated via simulation. Using a wide range, unidirectional topology as the starting point, a converter top

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11

Al, Kzair Christian. "SiC MOSFET function in DC-DC converter." Thesis, Uppsala universitet, Elektricitetslära, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-415147.

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This thesis evaluate the state of art ROHM SCT3080KR silicon carbide mosfet in a synchronous buck converter. The converter was using the ROHM P02SCT3040KR-EVK-001 evaluation board for driving the mosfets in a half bridge configuration. Evaluation of efficiency, waveforms, temperature and a theoretical comparison between a silicon mosfet (STW12N120K5) is done. For the efficiency test the converter operate at 200 V input voltage and 100 V output voltage at output currents of 7 A to 12 A, this operation was tested at switching frequencies of 50 kHz, 80 kHz and 100 kHz. The result of the efficienc

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DI, LORENZO ROBERTO. "DC-DC Buck Converter For Automotive Applications." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2021. http://hdl.handle.net/10281/301996.

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L'avvento del MOSFET di potenza è uno degli sviluppi più significativi nell'elettronica di potenza negli ultimi anni. Mentre i dispositivi verticali apparsi alla fine degli anni settanta sembravano destinati a trovare un posto importante nel mercato, in particolare nell'area della conversione di potenza ad alta frequenza, il predominio generale del transistor bipolare di potenza non sembrava seriamente minacciato. Tuttavia, quando i dispositivi DMOS verticali più facilmente fabbricabili apparvero in volume nel 1978, la scena era pronta per una rivoluzione. Il MOSFET di potenza ha rapidamente r

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13

Kluempers, Eric C. "PSpice computer model of a dc-dc converter /." free to MU campus, to others for purchase, 2004. http://wwwlib.umi.com/cr/mo/fullcit?p1426076.

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Wang, Xiangcheng. "HIGH SLEW RATE HIGH-EFFICIENCY DC-DC CONVERTER." Doctoral diss., University of Central Florida, 2006. http://digital.library.ucf.edu/cdm/ref/collection/ETD/id/3196.

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Active transient voltage compensator (ATVC) has been proposed to improve VR transient response at high slew rate load, which engages in transient periods operating in MHZ to inject high slew rate current in step up load and recovers energy in step down load. Main VR operates in low switching frequency mainly providing DC current. Parallel ATVC has largely reduced conduction and switching losses. Parallel ATVC also reduces the number of VR bulk capacitors. Combined linear and adaptive nonlinear control has been proposed to reduce delay times in the actual controller, which injects one nonlinear

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Nathan, Kumaran Saenthan. "A novel DC-DC converter for photovoltaic applications." Thesis, University of Cambridge, 2019. https://www.repository.cam.ac.uk/handle/1810/288881.

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Growing concerns about climate change have led to the world experiencing an unprecedented push towards renewable energy. Economic drivers and government policies mean that small, distributed forms of generation, like solar photovoltaics, will play a large role in our transition to a clean energy future. In this thesis, a novel DC-DC converter known as the Coupled Inductors Combined Cuk-SEPIC' (CI-CCS) converter is explored, which is particularly attractive for these photovoltaic applications. A topological modification is investigated which provides several benefits, including increased power

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Xu, Aidong. "Microprocessor controlled novel 4-quadrant DC-DC converter." Thesis, Loughborough University, 1992. https://dspace.lboro.ac.uk/2134/19477.

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The thesis describes a novel 4-quadrant DC-DC converter, supplied by a 28V DC voltage source, with an output voltage which may be continuously varied between +180V and -180V DC. A prototype 1.2kW DC-DC converter was designed and built, with emphasis given to the optimization of both the converter size and efficiency. This was achieved by means of a computer-based simulation study, which determined the optimal switching frequency and the size of the inductors and capacitors while maintaining a high unit efficiency. Mos-Gated Bimos switches, which feature the advantages of both mosfets and bipol

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SALIMATH, ARUNKUMAR. "SIMO DC-DC Converter for Automotive Audio Amplifier." Doctoral thesis, Università degli studi di Pavia, 2018. http://hdl.handle.net/11571/1214878.

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Modern auto industry is ubiquitously deploying electronic systems for several applications like control, infotainment and security among others in the vehicles. Automotive infotainment is a key segment for the growth of automotive electronics as the vehicles, both light and heavy, require radio, video, navigation-assistance and telematics systems for both entertainment and networking. Like any battery-operated systems, the automotive infotainment systems are required to provide high efficiency. One major constituent of in-vehicle infotainment being the radio, improving the overall efficiency o

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Zhang, Jianxi. "LCL DC/DC converter and DC hub under DC faults and development of DC grids with protection system using DC hub." Thesis, University of Aberdeen, 2016. http://digitool.abdn.ac.uk:80/webclient/DeliveryManager?pid=231428.

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In this thesis, an IGBT-based DC/DC converter employing an internal inductor-capacitor-inductor (LCL) passive circuit is investigated in DC grid under fault conditions. It is concluded that a range of converter parameters exist which will give DC fault current magnitudes close to rated currents. Steady state and transient fault responses are investigated in depth. The converter is modelled on PSCAD platform under fault operation and the simulation results verify the analytical studies. LCL DC hub is an extension of DC/DC converter to multiple ports with capability of limiting the propagation o

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Khopkar, Rahul Vijaykumar. "DC-DC converter current source fed naturally commutated brushless DC motor drive." Texas A&M University, 2003. http://hdl.handle.net/1969.1/1257.

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The aim of this work is to reduce the cost and size of a brushless dc motor (BLDC) drive as well as increase the reliability and ruggedness of that drive. Traditional BLDC drives use Voltage Source Inverters (VSI) that utilize hard switching, thereby generating switching losses and entail the use of large heatsinks. VSI needs a huge dc link capacitor that is inherently unreliable and is one of the most expensive components of a drive. Hence, a Current Source Inverter (CSI) is used to replace the hard switchings by natural turn-off, thereby eliminating the heatsinks as well as the large dc link

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20

Sikora, Roman. "DC-DC měnič pro matrix beam modul." Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413161.

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The master thesis deals with the development of buck-boost DC-DC converter which supplies matrix beam module. The design is focused on testing two-phase boost converter and three channel buck converter manufactured by NXP Semiconductors. Part of the design is implementation of microcontroller for converter control and communication with computer. Part of the thesis is also to design user interface on Windows platform for easy system configuration. Next thing the thesis deals with is designing load for DC-DC converter that is variable and can make different current consumption. One part of this

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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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Saha, Pradip Kumar. "Nonlinear modelling and bifurcations in the rectified DC voltage FED DC-DC boost converter." Thesis, University of North Bengal, 2006. http://hdl.handle.net/123456789/612.

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23

Querol, Borràs Jorge. "MCU Controlled DC-DC Buck/Boost Converter for Supercapacitors." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-101205.

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This work is focused on DC to DC conversion, what is a crucial function to enable the use of supercapacitors for energy storage. A theoretical study and comparison of methods, algorithms and techniques for software controlled DC-DC converters have been used to develop a system what can step up or down a DC variable voltage and transform it into a steady state voltage. As a result a new control theory based on Bang-Bang control has been developed with an ARM LPC1768 processor. It was implemented to solve the commercial converters problems because they cannot work with supercapacitors due to the

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Jain, Manu. "Bi-directional DC-DC converter for low-power applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk2/tape17/PQDD_0008/MQ39979.pdf.

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25

Chen, Christine M. Eng Massachusetts Institute of Technology. "Integrated DC-DC converter with ultra-low quiescent current." Thesis, Massachusetts Institute of Technology, 2013. http://hdl.handle.net/1721.1/84879.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2013.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 93-94).<br>Based on the LTC3588, the design of a bandgap reference and a comparator for use in the control circuitry of DC-DC converter with an ultra-low quiescent current of 150nA is presented here. Not only will this thesis discuss the challenges encountered over the course of designing circuits to operate at such low current levels, but it will also provide proof of concept silicon eva

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Leung, Hong Man. "SPICE simulation and modeling of DC-DC flyback converter." Thesis, Massachusetts Institute of Technology, 1995. http://hdl.handle.net/1721.1/36643.

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Bandyopadhyay, Saurav. "45nm direct battery DC-DC converter for mobile applications." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/60149.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2010.<br>Includes bibliographical references (p. 65-66).<br>Portable devices use Lithium-ion batteries as the energy source due to their high energy density, long cycle life and low memory effects. With the aggressive downscaling of CMOS, it is becoming increasingly difficult to efficiently interface the low voltage, low power digital baseband and DSP of the mobile phone with the battery which maybe at voltages as high as 4.2V. This is efficiently done by a DC-DC converter which is a sep

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Goldberg, Andrew Franklin. "A radio frequency DC-to-DC resonant power converter." Thesis, Massachusetts Institute of Technology, 1985. http://hdl.handle.net/1721.1/27944.

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Thesis (Elect. E.)--Massachusetts Institute of Technology, Dept. of Electrical Engieering and Computer Science, 1985.<br>MICROFICHE COPY AVAILABLE IN ARCHIVES AND ENGINEERING.<br>Bibliography: leaves 136-139.<br>by Andrew Franklin Goldberg.<br>Elect.E.

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Duncan, Joseph 1981. "A global maximum power point tracking DC-DC converter." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/33152.

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Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2005.<br>Includes bibliographical references (p. 79-80).<br>This thesis describes the design, and validation of a maximum power point tracking DC-DC converter capable of following the true global maximum power point in the presence of other local maximum. It does this without the use of costly components such as analog-to-digital converters and microprocessors. It substantially increases the efficiency of solar power conversion by allowing solar cells to operate at their ideal operati

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Pascoal, Fábio Miguel Ferreira. "Inductorless DC\DC converter." Master's thesis, 2016. https://repositorio-aberto.up.pt/handle/10216/85953.

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Using nano-scale integration to create a DC-DC up converter from 0.8V supply to a stable 1.2V voltage that use no external inductors and minimal external component, namely capacitors. A study of the different topologies/techniques is performed with the respective evaluation of their pros and cons. Based on these, a circuit architecture is proposed and developed with proper validation of the circuit performance parameters like: power, ageing, precision, reliability, area, etc...

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Pascoal, Fábio Miguel Ferreira. "Inductorless DC\DC converter." Dissertação, 2016. https://repositorio-aberto.up.pt/handle/10216/85953.

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Using nano-scale integration to create a DC-DC up converter from 0.8V supply to a stable 1.2V voltage that use no external inductors and minimal external component, namely capacitors. A study of the different topologies/techniques is performed with the respective evaluation of their pros and cons. Based on these, a circuit architecture is proposed and developed with proper validation of the circuit performance parameters like: power, ageing, precision, reliability, area, etc...

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Wei, Shan-Gte, and 魏尚德. "Wireless DC/DC Power Converter." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/85934216419485901074.

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碩士<br>崑山科技大學<br>電機工程研究所<br>104<br>In this paper, the wireless DC/DC power converter based on a full-bridge structure as the wireless power transmitter circuit will be examined. Using the series resonance principle consisted of the capacitors and inductors, the energy will be transferred from the transmitter to the receiver circuit, and the receiver is also a series resonance circuit consisted by a capacitor and an inductor which receives the energy from the transmitter and passing it through the bridge diode to load. Finally, a wireless transmission circuit with a power rating of 1789.7 watts

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Kao, Feng-Jun, and 高逢均. "Dual-Output DC-DC Converter." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/c9xj4q.

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碩士<br>國立高雄科技大學<br>微電子工程系<br>107<br>In this thesis,a dual-output DC-DC converter is developed.The developed dual-output DC-DC converter is configured by two DC-DC boost converter with common input source to generate two equalized DC output voltages.The developed dual-output DC-DC converter has the advantages of low ripple current and equalized DC output voltages.In addition,the coupling inductors is used to reduce the volume of filter inductors.A prototype is developed to evaluate the performance of dual-output DC-DC converter.

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Chen, Shih-Wei, and 陳世偉. "Single-Inductor Tri-Output DC-DC Boost Converter and Dual-Output Quadratic DC-DC Buck Converter." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/uy3282.

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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>There are two kinds of DC-DC converters presented in this study. One is the single-inductor tri-output (SITO) DC-DC boost converter, and the other one is the dual-output quadratic (DOQ) DC-DC buck converter. The proposed SITO DC-DC boost converter not only provides three output sources but also uses single inductor. The proposed DOQ DC-DC buck converter has a wider conversion ratio with ultra-low voltage for dual-output voltage sources. In this study, the methodology for controller design of DOQ DC-DC buck converter is given using average current-mode contro

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Mallik, Dhara I. "Design of isolated DC-DC and DC-DC-AC converters with reduced number of power switches." Thesis, 2017. https://doi.org/10.7912/C2H652.

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Indiana University-Purdue University Indianapolis (IUPUI)<br>There are various types of power electronic converters available in recent days. In some applications (e.g. PC power supply), it is required to supply more than one load from a single power supply. One of the main challenges while designing a power converter is to increase its e ciency especially when the number of power switches employed is relatively large. While several loads are supplied from a single source, if the power loss in the switches cannot be reduced, then the expected utilization of using a single source is not v

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Jiang, Ding-Da, and 江定達. "An Adaptable DC-DC Boost Converter." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/94874417372416286002.

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碩士<br>國立中興大學<br>電機工程學系所<br>94<br>In this thesis, existing modulation technology of switch regulator is investigated to design simple and low cost dc-dc converter. There are two control methods of existing switch regulators, i.e., pulse width modulation (PWM) and pulse frequency modulation (PFM), PWM control method is difficult to design in stability, while PFM is simple and high stability. In terms of efficiency, PWM has low efficiency in light load but high efficiency in heavy load. On the contrary, PFM has low efficiency in heavy load but low efficiency in light load. In terms of ripple PWM

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劉育廷. "Digital Current Mode DC-DC Converter." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/91935440386309142214.

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Araújo, José Pedro Fortuna. "High Power Density DC-DC Converter." Master's thesis, 2015. https://repositorio-aberto.up.pt/handle/10216/89774.

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Hsu, Hsiu-Chia, and 許家修. "Realization of DC/DC Boost Converter." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/40512164340173394360.

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碩士<br>國立交通大學<br>機械工程學系<br>101<br>DC/DC converter is one of the most popular power electronic converters owing to its simple structure and wide applications. One type of the DC/DC converter is boost converter. The thesis realizes three boost converters operating in two different range of switching frequencies, 33kHz to 100kHz and 100kHz to 600kHz, which modulate the duty ration to maintain the output power being stable by sensing the feedback signal of the output voltage. Furthermore, the thsis analize the composistion of the factor of power loss in the circuits to increase the efficiency, and

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Araújo, José Pedro Fortuna. "High Power Density DC-DC Converter." Dissertação, 2015. https://repositorio-aberto.up.pt/handle/10216/89774.

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Wang, Sheng-Yuan, and 王聖淵. "System integration of AC-DC and DC-DC Converter." Thesis, 2019. http://ndltd.ncl.edu.tw/handle/9a3zhg.

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碩士<br>崑山科技大學<br>電子工程研究所<br>107<br>As the trend of electric vehicles is becoming clearer, the charging system is also charged by AC to DC. The main purpose of this thesis is to develop and discuss the application of an AC-DC and DC-DC integration. Can be applied to charging systems or other related consumer electronics. DC-DC Converter developed a system with DC48V, switching frequency of 60kHz~65kHz and power of 60W in the form of Flyback. And with AC-DC system.

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Tong, Shi-cheng, and 童世承. "The Study of Bidirectional DC-DC Converter for DC System." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/31838579125174523655.

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碩士<br>逢甲大學<br>電機工程所<br>98<br>In recent years, the development of green energy has received increasing national attention. It is foreseeable that the DC power supply system development and application, under the progressive development of green energy. The operation mode of bidirectional DC-DC power supply system will be as the current UPS. This design makes and improves to the bidirectional DC-DC power supply system, and the system is superposition half-bridge and full-bridge. The system features is the output voltage has a wide range of modulation under charging model. The power source is th

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Yang, Chih-Wei, and 楊志偉. "Implementation of DC/DC Converter Driver IC." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/54049673779383549988.

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碩士<br>大葉大學<br>資訊工程學系碩士班<br>93<br>In order to reduce the power consumption the SOC(system on chip) design usually needs to use the different voltage levels. Moreover, the variable frequency technology is employed to change the frequency for the different function. Thus the power consumption can be reduce by using slow clock in low frequency circuits. Such variable voltage/variable frequency power management strategy is more important in the modern power management chip design. Therefore, in this paper, we employed a new variable voltage/variable frequency PWM(pulse-width modulation) circuit des

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沈柏年. "Suppression of Electromagnetic of DC-DC Converter." Thesis, 2008. http://ndltd.ncl.edu.tw/handle/05596534576468928958.

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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>Power DC-DC converters are notorious sources of electromagnetic interference in electronic products; therefore, suppression of EMI is an important topic in the design of switch-mode power converters. Conventional EMI suppression methods may employ LC filters and metal shielding, but this can significantly increase cost, size, and weight. In this paper we propose a chaos-based method to reduce peak EMI magnitude and spread the energy to a wide range of frequencies. This method is to add a chaos-modulation clock to a converter maintaining in regular period stat

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Huang, Chien-Chung, and 黃建中. "BIPOLAR SYNCHRONOUS DC-DC BUCK CONVERTER DESIGN." Thesis, 2009. http://ndltd.ncl.edu.tw/handle/97013166298125170114.

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碩士<br>大同大學<br>電機工程學系(所)<br>97<br>A DC-DC synchronous buck converter with soft start has been designed and simulated with 40V bipolar process. The overall circuit is designed based on a voltage-mode PWM controlled converter. The input voltage range is from +4.3V to +20V. Simulation results show that this converter with on-chip current sensor can operate at 200 kHz. The current limit is implemented by sensing the voltage drop across the bottom N-MOSFET RDS (ON). The soft start function is used to prevent large inrush currents upon power-up. The internal thermal protection circuit can protect the

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Chuang, Ming Nan, and 莊明男. "Design of Step-Up DC-DC Converter." Thesis, 1994. http://ndltd.ncl.edu.tw/handle/74437840282860964610.

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碩士<br>國立清華大學<br>電機工程研究所<br>82<br>Higher switching frequencies of DC-DC converter, is made possible by power MOSFET transistor, and integrated- circuit pulse-width- modulating chip, which pack more control and supervisory features in a smaller volume. This work used conventional CMOS process technology to design three DC-DC step-up converters with different control methods, boost from adjustable input voltage to higher voltage (5V). layout exa

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Vargas, Helena Isabel Pais Ferreira de. "Radiation-Hard Step-up DC-DC Converter." Master's thesis, 2013. https://repositorio-aberto.up.pt/handle/10216/72648.

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Alves, Nuno Martins. "High-Performance Isolated Bidirectional DC-DC Converter." Master's thesis, 2017. https://hdl.handle.net/10216/105515.

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Conversores DC-DC bidireccionais têm vindo a ganhar atenção na área da eletrónica de potência devido ao aumento da necessidade de um fluxo de potência controlado entre dois barramentos DC. Aplicações típicas podem ser facilmente listadas, indo desde unidades de produção de energia renovável até veículos elétricos e híbridos. Estes conversores podem apresentar funcionalidades como elevada densidade energética e performance, assim como isolamento galvânico entre cada porto. Desta forma, a AddVolt requisitou que tal conversor fosse incluído na sua solução de travagem regenerativa. Com esta disse

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Alves, Nuno Martins. "High-Performance Isolated Bidirectional DC-DC Converter." Dissertação, 2017. https://hdl.handle.net/10216/105515.

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Conversores DC-DC bidireccionais têm vindo a ganhar atenção na área da eletrónica de potência devido ao aumento da necessidade de um fluxo de potência controlado entre dois barramentos DC. Aplicações típicas podem ser facilmente listadas, indo desde unidades de produção de energia renovável até veículos elétricos e híbridos. Estes conversores podem apresentar funcionalidades como elevada densidade energética e performance, assim como isolamento galvânico entre cada porto. Desta forma, a AddVolt requisitou que tal conversor fosse incluído na sua solução de travagem regenerativa. Com esta disse

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Patterson, Oliver Desmond. "Pseudo-resonant full bridge DC/DC converter." 1987. http://catalog.hathitrust.org/api/volumes/oclc/15634707.html.

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Thesis (M.S.)--University of Wisconsin--Madison, 1987.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 77-78).

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