New Geometry Integrated Inductors in Two-channel Interleaved Bidirectional Converter

Ziwei Ouyang; Ole Cornelius Thomsen; Michael A. E. Andersen; Ole Poulsen; Thomas Björklund

doi:10.1109/IECON.2010.5675219

New Geometry Integrated Inductors in Two-channel Interleaved Bidirectional Converter

Ziwei Ouyang, Ole Cornelius Thomsen, Michael A. E. Andersen, Ole Poulsen, Thomas Björklund

Flux A/S

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Abstract

A new geometry of integrated inductors for twochannel interleaved bidirectional converter is presented in this paper. The new geometry module integrates two individual inductors by stacking three I-cores. The middle I-core provides a shared flux path with low reluctance which uncouples the two inductors. The air gaps are constructed by separating the I-cores using copper foil windings with well-defined thickness. In this work, inverse connection and direct connection for the two integrated inductors have been analyzed. For the inverse connection, a unique saturation behavior in the middle I-core has been shown. The integrated inductors with new geometry make it possible to build low-profile, low-cost, flexibility DC/DC converters, and it can be extensively designed for low-voltage and high-current required by modern digital applications. Experiment results obtained from a 48V-12V 30A two-phase interleaved buck converter, demonstrates the difference in the inverse connection and the direct connection. Both efficiencies are above 91% from half to full output current.

Original language	English
Title of host publication	IECON 2010 : 36. Annual Conference of IEEE Industrial Electronics
Publication date	2010
ISBN (Print)	978-1-4244-5226-2
DOIs	https://doi.org/10.1109/IECON.2010.5675219
Publication status	Published - 2010
Event	36th Annual Conference on IEEE Industrial Electronics Society - Phoenix, United States Duration: 7 Nov 2010 → 10 Nov 2010 Conference number: 36 https://ieeexplore.ieee.org/xpl/conhome/5661635/proceeding

Conference

Conference	36th Annual Conference on IEEE Industrial Electronics Society
Number	36
Country/Territory	United States
City	Phoenix
Period	07/11/2010 → 10/11/2010
Internet address	https://ieeexplore.ieee.org/xpl/conhome/5661635/proceeding

Bibliographical note

Copyright 2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.

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10.1109/IECON.2010.5675219

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@inproceedings{2a54b73b4d484df584034d863fd70a15,

title = "New Geometry Integrated Inductors in Two-channel Interleaved Bidirectional Converter",

abstract = "A new geometry of integrated inductors for twochannel interleaved bidirectional converter is presented in this paper. The new geometry module integrates two individual inductors by stacking three I-cores. The middle I-core provides a shared flux path with low reluctance which uncouples the two inductors. The air gaps are constructed by separating the I-cores using copper foil windings with well-defined thickness. In this work, inverse connection and direct connection for the two integrated inductors have been analyzed. For the inverse connection, a unique saturation behavior in the middle I-core has been shown. The integrated inductors with new geometry make it possible to build low-profile, low-cost, flexibility DC/DC converters, and it can be extensively designed for low-voltage and high-current required by modern digital applications. Experiment results obtained from a 48V-12V 30A two-phase interleaved buck converter, demonstrates the difference in the inverse connection and the direct connection. Both efficiencies are above 91% from half to full output current.",

author = "Ziwei Ouyang and Thomsen, {Ole Cornelius} and Andersen, {Michael A. E.} and Ole Poulsen and Thomas Bj{\"o}rklund",

note = "Copyright 2010 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.; 36th Annual Conference on IEEE Industrial Electronics Society, IECON 2010 ; Conference date: 07-11-2010 Through 10-11-2010",

year = "2010",

doi = "10.1109/IECON.2010.5675219",

language = "English",

isbn = "978-1-4244-5226-2",

booktitle = "IECON 2010",

url = "https://ieeexplore.ieee.org/xpl/conhome/5661635/proceeding",

}

Ouyang, Z, Thomsen, OC, Andersen, MAE, Poulsen, O & Björklund, T 2010, New Geometry Integrated Inductors in Two-channel Interleaved Bidirectional Converter. in IECON 2010: 36. Annual Conference of IEEE Industrial Electronics. 36th Annual Conference on IEEE Industrial Electronics Society, Phoenix, Arizona, United States, 07/11/2010. https://doi.org/10.1109/IECON.2010.5675219

TY - GEN

T1 - New Geometry Integrated Inductors in Two-channel Interleaved Bidirectional Converter

AU - Ouyang, Ziwei

AU - Thomsen, Ole Cornelius

AU - Andersen, Michael A. E.

AU - Poulsen, Ole

AU - Björklund, Thomas

N1 - Conference code: 36

PY - 2010

Y1 - 2010

N2 - A new geometry of integrated inductors for twochannel interleaved bidirectional converter is presented in this paper. The new geometry module integrates two individual inductors by stacking three I-cores. The middle I-core provides a shared flux path with low reluctance which uncouples the two inductors. The air gaps are constructed by separating the I-cores using copper foil windings with well-defined thickness. In this work, inverse connection and direct connection for the two integrated inductors have been analyzed. For the inverse connection, a unique saturation behavior in the middle I-core has been shown. The integrated inductors with new geometry make it possible to build low-profile, low-cost, flexibility DC/DC converters, and it can be extensively designed for low-voltage and high-current required by modern digital applications. Experiment results obtained from a 48V-12V 30A two-phase interleaved buck converter, demonstrates the difference in the inverse connection and the direct connection. Both efficiencies are above 91% from half to full output current.

AB - A new geometry of integrated inductors for twochannel interleaved bidirectional converter is presented in this paper. The new geometry module integrates two individual inductors by stacking three I-cores. The middle I-core provides a shared flux path with low reluctance which uncouples the two inductors. The air gaps are constructed by separating the I-cores using copper foil windings with well-defined thickness. In this work, inverse connection and direct connection for the two integrated inductors have been analyzed. For the inverse connection, a unique saturation behavior in the middle I-core has been shown. The integrated inductors with new geometry make it possible to build low-profile, low-cost, flexibility DC/DC converters, and it can be extensively designed for low-voltage and high-current required by modern digital applications. Experiment results obtained from a 48V-12V 30A two-phase interleaved buck converter, demonstrates the difference in the inverse connection and the direct connection. Both efficiencies are above 91% from half to full output current.

U2 - 10.1109/IECON.2010.5675219

DO - 10.1109/IECON.2010.5675219

M3 - Article in proceedings

SN - 978-1-4244-5226-2

BT - IECON 2010

T2 - 36th Annual Conference on IEEE Industrial Electronics Society

Y2 - 7 November 2010 through 10 November 2010

ER -

New Geometry Integrated Inductors in Two-channel Interleaved Bidirectional Converter

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