Files in this item

FilesDescriptionFormat

application/pdf

application/pdfMACY-THESIS-2015.pdf (4MB)
(no description provided)PDF

Description

Title:Analysis and design of high power density resonant switched-capacitor converters
Author(s):Macy, Benjamin Blake
Department / Program:Electrical & Computer Eng
Discipline:Electrical & Computer Engr
Degree Granting Institution:University of Illinois at Urbana-Champaign
Degree:M.S.
Genre:Thesis
Subject(s):Swtiched
Capacitor
Power Electronics
Power Density
High Efficiency
Dickson
Capacitor
Resonant
Split-Phase
Soft-charging
Soft-switching
Gallium Nitride (GaN)
Abstract:This thesis is motivated by the desire for power electronics designers to create power electronic converters that have high energy density (are very small) and high efficiency (few losses). Switched-capacitor (SC) topologies that utilize the high energy density of capacitors are a candidate for fulfilling these two criteria. However, there are inherent limitations in conventional switched capacitor converters where a designer is required to make a trade-off between efficiency and capacitor energy density utilization. One way to overcome this obstacle is to utilize resonance in a SC converter. This work proposes a resonant, voltage step-up Dickson SC converter. A single inductor is utilized to achieve zero current switching of all transistors, which allows for high switching frequency and high conversion efficiency. A split-phase control scheme is used in order to eliminate the current transients associated with the Dickson SC converter and the resultant power loss. Employing these techniques, a Dickson SC converter prototype is implemented with GaN transistors. The converter is able to achieve high power density while maintaining high efficiency because of the control techniques that are employed.
Issue Date:2015-04-27
Type:Thesis
URI:http://hdl.handle.net/2142/78454
Rights Information:Copyright 2015 Benjamin B. Macy
Date Available in IDEALS:2015-07-22
Date Deposited:May 2015


This item appears in the following Collection(s)

Item Statistics