{"id":{"repo_id":"mit","oai_identifier":"oai:dspace.mit.edu:1721.1/100672"},"canonical_url":"https://search.dev.ndltd.org/etd/mit/oai:dspace.mit.edu:1721.1/100672","repository":{"repo_id":"mit","name":"MIT","base_url":"https://dspace.mit.edu/oai/request"},"display":{"title":"Wide-bandwidth digital controller for multi-phase converters","abstract":"DC-DC converters with high bandwidth are essential for today's high efficiency and high-speed micro-processing applications. In order to satisfy the requirements of those systems, we propose the implementation of a practical wide bandwidth digital controller for multiphase buck converters. Traditional implementations of multiphase converters have a performance comparable to single-phase implementations, with a bandwidth limited to a fraction of the per-phase switching frequency Fsw. The goal of this project is to take advantage of multiphase to achieve a higher bandwidth for any given switching frequency. Specifically, we target a bandwidth that scales with N x Fsw, rather than Fsw, with N being the number of phases in the system. This work focuses on the evaluation of a previously proposed digital modulator that is able to react to duty cycle changes at a speed equal to N x Fsw. Using this modulator, we design a few digital controllers and compare their performance to that of traditional digital controllers.","abstract_html":"DC-DC converters with high bandwidth are essential for today's high efficiency and high-speed micro-processing applications. In order to satisfy the requirements of those systems, we propose the implementation of a practical wide bandwidth digital controller for multiphase buck converters. Traditional implementations of multiphase converters have a performance comparable to single-phase implementations, with a bandwidth limited to a fraction of the per-phase switching frequency Fsw. The goal of this project is to take advantage of multiphase to achieve a higher bandwidth for any given switching frequency. Specifically, we target a bandwidth that scales with N x Fsw, rather than Fsw, with N being the number of phases in the system. This work focuses on the evaluation of a previously proposed digital modulator that is able to react to duty cycle changes at a speed equal to N x Fsw. Using this modulator, we design a few digital controllers and compare their performance to that of traditional digital controllers.","abstract_has_math":false,"creators":["Tchapmi Petse, Lyne"],"institution":"Massachusetts Institute of Technology","degree_name":null,"degree_level":null,"degree_discipline":null,"degree_department":"Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science.","school":null,"contributors":[],"advisors":["Brett A. Miwa and Anantha P. 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They may be viewed from this source for any purpose, but reproduction or distribution in any format is prohibited without written permission. See provided URL for inquiries about permission."]},{"key":"dc:rights.uri","label":"Rights URI","values":["http://dspace.mit.edu/handle/1721.1/7582"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier.uri","label":"Identifier URI","values":["http://hdl.handle.net/1721.1/100672"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2014.","Cataloged from PDF version of thesis.","Includes bibliographical references (page 63)."]},{"key":"dc:description.abstract","label":"Abstract","values":["DC-DC converters with high bandwidth are essential for today's high efficiency and high-speed micro-processing applications. In order to satisfy the requirements of those systems, we propose the implementation of a practical wide bandwidth digital controller for multiphase buck converters. Traditional implementations of multiphase converters have a performance comparable to single-phase implementations, with a bandwidth limited to a fraction of the per-phase switching frequency Fsw. The goal of this project is to take advantage of multiphase to achieve a higher bandwidth for any given switching frequency. Specifically, we target a bandwidth that scales with N x Fsw, rather than Fsw, with N being the number of phases in the system. This work focuses on the evaluation of a previously proposed digital modulator that is able to react to duty cycle changes at a speed equal to N x Fsw. Using this modulator, we design a few digital controllers and compare their performance to that of traditional digital controllers."]},{"key":"dc:description.degree","label":"Dc Description Degree","values":["M. 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