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Multilevel series–parallel continuously regulated chopper applied flying capacitor topology
Author(s) -
Mori Takao,
Uezono Keiichi,
Funato Hirohito,
Haruna Junnosuke
Publication year - 2019
Publication title -
ieej transactions on electrical and electronic engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.254
H-Index - 30
eISSN - 1931-4981
pISSN - 1931-4973
DOI - 10.1002/tee.22946
Subject(s) - chopper , ripple , inductor , inductance , capacitor , topology (electrical circuits) , waveform , series (stratigraphy) , series and parallel circuits , power (physics) , electronic engineering , voltage , electrical engineering , computer science , engineering , control theory (sociology) , physics , paleontology , biology , control (management) , quantum mechanics , artificial intelligence
This paper proposes a new configuration of the series–parallel continuously regulated chopper applying three‐level operation realized by flying capacitor topology. In the conventional two‐level operation, the increase in switching loss and volume of the inductor is problematic. In three‐level operations, both switching frequency and inductance of interconnecting inductor become half of those of two‐level operation under the condition of same current ripple and same ripple frequency. Using a low‐voltage power device, the switching loss can be reduced without increasing the volume of the inductor. The effectiveness of the proposed circuit was verified from steady‐state waveforms obtained by simulations. © 2019 Institute of Electrical Engineers of Japan. Published by John Wiley & Sons, Inc.