2026-09-20T11:19:06Zhttps://dspace.mit.edu/server/oai/requestoai:dspace.mit.edu:1721.1/756622022-01-13T07:54:29Zcom_1721.1_7582com_1721.1_7581col_1721.1_131023
David J. Perreault.
Lim, Seungbum
Massachusetts Institute of Technology. Dept. of Electrical Engineering and Computer Science.
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
2012-12-13T18:50:13Z
2012-12-13T18:50:13Z
2012
2012
http://hdl.handle.net/1721.1/75662
818661850
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).
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.
by Seungbum Lim.
S.M.
71 p.
eng
Massachusetts Institute of Technology
M.I.T. theses are protected by
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reproduction or distribution in any format is prohibited without written
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http://dspace.mit.edu/handle/1721.1/7582
Electrical Engineering and Computer Science.
A Merged two-stage power conversion architecture with switched capacitor circuit for an LED driver module
2-stage power conversion architecture with switched capacitor circuit for an LED driver module
Thesis
application/pdf
Publication
unknown
unknown
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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.</Abstract>
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