Comparison of coupled vs. Non-coupled microfabricated inductors in 2W 20MHz interleaved buck converter

Youssef Kandeel; Maeve Duffy

doi:10.1109/APEC.2019.8721776

Comparison of coupled vs. Non-coupled microfabricated inductors in 2W 20MHz interleaved buck converter

Youssef Kandeel
, Maeve Duffy

University of Galway

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

Abstract

Research and industry interest in improving performance, size and cost of DC-DC converters is driving the development of circuit topologies and passive components that are compatible for integration on silicon, particularly magnetic components. In order to quantify the advantages of coupled inductors, this paper presents a design case comparison between coupled vs. non-coupled silicon-integrated microfabricated inductors in a 2 W interleaved DC-DC converter switching at 20 MHz, considering the same circuit specifications and silicon manufacturing capabilities for the silicon-integrated inductors. The study attempts to address the relative advantages and disadvantages of each design in terms of inductor size, loss and circuit transient response, in addition to presenting a selection procedure for a suitable coupling factor that provides flux cancellation over a range of input voltages for 4-phase cyclic cascaded coupled inductor.

Original language	English
Title of host publication	34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	2638-2645
Number of pages	8
ISBN (Electronic)	9781538683309
DOIs	https://doi.org/10.1109/APEC.2019.8721776
Publication status	Published - 24 May 2019
Externally published	Yes
Event	34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 - Anaheim, United States Duration: 17 Mar 2019 → 21 Mar 2019

Publication series

Name	Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Volume	2019-March

Conference

Conference	34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019
Country/Territory	United States
City	Anaheim
Period	17/03/19 → 21/03/19

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 9 Industry, Innovation, and Infrastructure

Keywords

Coupled inductor
Inductor loss
Interleaved DC-DC converter
Multiphase converter

Access to Document

10.1109/APEC.2019.8721776

Cite this

Kandeel, Y., & Duffy, M. (2019). Comparison of coupled vs. Non-coupled microfabricated inductors in 2W 20MHz interleaved buck converter. In 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 (pp. 2638-2645). Article 8721776 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2019-March). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/APEC.2019.8721776

Kandeel, Youssef ; Duffy, Maeve. / Comparison of coupled vs. Non-coupled microfabricated inductors in 2W 20MHz interleaved buck converter. 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. pp. 2638-2645 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC).

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abstract = "Research and industry interest in improving performance, size and cost of DC-DC converters is driving the development of circuit topologies and passive components that are compatible for integration on silicon, particularly magnetic components. In order to quantify the advantages of coupled inductors, this paper presents a design case comparison between coupled vs. non-coupled silicon-integrated microfabricated inductors in a 2 W interleaved DC-DC converter switching at 20 MHz, considering the same circuit specifications and silicon manufacturing capabilities for the silicon-integrated inductors. The study attempts to address the relative advantages and disadvantages of each design in terms of inductor size, loss and circuit transient response, in addition to presenting a selection procedure for a suitable coupling factor that provides flux cancellation over a range of input voltages for 4-phase cyclic cascaded coupled inductor.",

keywords = "Coupled inductor, Inductor loss, Interleaved DC-DC converter, Multiphase converter",

author = "Youssef Kandeel and Maeve Duffy",

note = "Publisher Copyright: {\textcopyright} 2019 IEEE.; 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019 ; Conference date: 17-03-2019 Through 21-03-2019",

year = "2019",

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doi = "10.1109/APEC.2019.8721776",

language = "English",

series = "Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC",

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Kandeel, Y & Duffy, M 2019, Comparison of coupled vs. Non-coupled microfabricated inductors in 2W 20MHz interleaved buck converter. in 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019., 8721776, Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC, vol. 2019-March, Institute of Electrical and Electronics Engineers Inc., pp. 2638-2645, 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019, Anaheim, United States, 17/03/19. https://doi.org/10.1109/APEC.2019.8721776

Comparison of coupled vs. Non-coupled microfabricated inductors in 2W 20MHz interleaved buck converter. / Kandeel, Youssef; Duffy, Maeve.
34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019. Institute of Electrical and Electronics Engineers Inc., 2019. p. 2638-2645 8721776 (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC; Vol. 2019-March).

Research output: Chapter in Book/Report/Conference proceedings › Conference proceeding › peer-review

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N2 - Research and industry interest in improving performance, size and cost of DC-DC converters is driving the development of circuit topologies and passive components that are compatible for integration on silicon, particularly magnetic components. In order to quantify the advantages of coupled inductors, this paper presents a design case comparison between coupled vs. non-coupled silicon-integrated microfabricated inductors in a 2 W interleaved DC-DC converter switching at 20 MHz, considering the same circuit specifications and silicon manufacturing capabilities for the silicon-integrated inductors. The study attempts to address the relative advantages and disadvantages of each design in terms of inductor size, loss and circuit transient response, in addition to presenting a selection procedure for a suitable coupling factor that provides flux cancellation over a range of input voltages for 4-phase cyclic cascaded coupled inductor.

AB - Research and industry interest in improving performance, size and cost of DC-DC converters is driving the development of circuit topologies and passive components that are compatible for integration on silicon, particularly magnetic components. In order to quantify the advantages of coupled inductors, this paper presents a design case comparison between coupled vs. non-coupled silicon-integrated microfabricated inductors in a 2 W interleaved DC-DC converter switching at 20 MHz, considering the same circuit specifications and silicon manufacturing capabilities for the silicon-integrated inductors. The study attempts to address the relative advantages and disadvantages of each design in terms of inductor size, loss and circuit transient response, in addition to presenting a selection procedure for a suitable coupling factor that provides flux cancellation over a range of input voltages for 4-phase cyclic cascaded coupled inductor.

KW - Coupled inductor

KW - Inductor loss

KW - Interleaved DC-DC converter

KW - Multiphase converter

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Kandeel Y, Duffy M. Comparison of coupled vs. Non-coupled microfabricated inductors in 2W 20MHz interleaved buck converter. In 34th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2019. Institute of Electrical and Electronics Engineers Inc. 2019. p. 2638-2645. 8721776. (Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC). doi: 10.1109/APEC.2019.8721776

Comparison of coupled vs. Non-coupled microfabricated inductors in 2W 20MHz interleaved buck converter

Abstract

Publication series

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UN SDGs

Keywords

Access to Document

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