A Merged two-stage power conversion architecture with switched capacitor circuit for an LED driver module

Author(s)
Lim, Seungbum
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Alternative title
2-stage power conversion architecture with switched capacitor circuit for an LED driver module
Other Contributors
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Advisor
David J. Perreault.
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Abstract
In a power converter specified to convert from wide-range and high-level DC voltage or AC line voltage to low-level DC voltage, satisfying high efficiency, high power density, and high power factor is challenging because of the higher device stress and difficulty of maintaining ZVS/ZCS conditions. Our purpose of the proposed two-stage power conversion architecture is to manage this high peak voltage stress and widely-varying operating conditions and to reduce dissipation by placing a switched capacitor pre-regulator stage in front of a very high frequency DC-DC converter stage. Our proposed two-stage architecture has been designed, built, and tested.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2012.
 
Cataloged from PDF version of thesis.
 
Includes bibliographical references (p. 71).
 
Date issued
2012
URI
http://hdl.handle.net/1721.1/75662
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Publisher
Massachusetts Institute of Technology
Keywords
Electrical Engineering and Computer Science.
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