Variable-Inverter-Rectifier-Transformer: A Hybrid Electronic and Magnetic Structure Enabling Adjustable High Step-Down Conversion Ratios

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COMPEL 2017: M.K. Ranjram, I. Moon and D.J. Perreault, “Variable-Inverter-Rectifier-Transformer: A Hybrid Electronic and Magnetic Structure Enabling Adjustable High Step-Down Conversion Ratios.” IEEE Workshop on Modeling and Control in Power Electronics, 2017.
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Author(s)
Moon, Intae
•
Ranjram, Mike Kavian
•
Perreault, David J
Date Issued
August 2017
Journal
2017 IEEE Workshop on Modeling and Control in Power Electronics (COMPEL)
Citation
Ranjram, Mike K., Intae Moon, and David J. Perreault. "Variable-Inverter-Rectifier-Transformer: A Hybrid Electronic and Magnetic Structure Enabling Adjustable High Step-Down Conversion Ratios." 2017 IEEE Workshop on Control and Modeling for Power Electronics (COMPEL 17), 9-12 July, 2017, Stanford, California, IEEE, 2017.
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Author's final manuscript
Abstract
This paper proposes a hybrid electronic and magnetic structure that enables transformers with “fractional” and reconfigurable turns ratios (e.g. 12:0.5, 12:1, 12:2). This functionality is valuable in converters with wide operating voltage ranges and high step-up/down, as it offers a means to reduce copper loss within the transformer while also facilitating voltage doubling and quadrupling. We introduce the principle of operation of the structure and present models for its magnetic and electrical behaviour. An experimental prototype capable of accommodating a widely varying input (120-380[subscript Vdc]) and output (5, 9, 12V) validates the operating principle and modelling of the proposed structure and achieves conversion efficiencies between 93.4% and 95.7% at 25-36 W.
MIT Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
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DOI of Published Version
http://dx.doi.org/10.1109/COMPEL.2017.8013350
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