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Unified Models for Multiphase Coupled Inductors

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posted on 04.11.2020, 03:44 by Minjie Chen

Circuit models for multiphase coupled inductors

are summarized, compared, and unified. Multiwinding magnetic structures are classified into parallel-coupled structures and series-coupled structures. For parallel-coupled structures used for multiphase inductors, the relationships between a) inductance matrix models, b) extended cantilever models, c) magnetic circuit models, d) multiwinding transformer models, e) gyrator-capacitor models, and f) inductance dual models are investigated and

discussed. These models represent identical physical relationships in the multiphase coupled inductors, but emphasize different physical aspects and offer distinct design insights. The circuit duality between the series coupled structure and the parallel coupled structure is revealed. Design equations linking these models are compared and unified. The models and design equations are verified through theoretical derivation, SPICE simulation, and experimental measurements.

Funding

National Science Foundation Award #1847365.

History

Email Address of Submitting Author

minjie@princeton.edu

ORCID of Submitting Author

0000-0003-0705-563X

Submitting Author's Institution

Princeton University

Submitting Author's Country

United States of America

Licence

Exports