Multiphase 3-Level Buck Passives Analysis Including 2- Phase Coupled Inductors

Youssef Kandeel; Seamus O'Driscoll; Cian O. Mathuna; Maeve Duffy

doi:10.1109/APEC43599.2022.9773500

Multiphase 3-Level Buck Passives Analysis Including 2- Phase Coupled Inductors

Youssef Kandeel
, Seamus O'Driscoll
, Cian O. Mathuna
, Maeve Duffy

Electrical & Electronic Engineering

Research output: Contribution to conference (Published) › Paper › peer-review

Abstract

In this paper, passive components in the multiphase 3-level topology are analyzed to study the impact of increasing the number of phases on their sizes and performance. Practical converter specifications are considered, i.e., wide input voltage range, output voltage ripple, and load transient response; along with the impact of PCB design rules on air-core PCB inductor implementation. Practical restrictions show that the benefits of increasing the number of phases are limited. The multiphase 3-level topology, when compared against the multiphase buck topology, is found to achieve lower total inductor energy at the cost of increased total capacitor energy, which reflects in the overall passive components' size. The paper also presents coupling factor analysis for a 2-phase coupled inductor in the multiphase 3-level topology.

Original language	English
Pages	2064-2069
Number of pages	6
DOIs	https://doi.org/10.1109/APEC43599.2022.9773500
Publication status	Published - 2022
Event	37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022 - Houston, United States Duration: 20 Mar 2022 → 24 Mar 2022

Conference

Conference	37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022
Country/Territory	United States
City	Houston
Period	20/03/22 → 24/03/22

Keywords

3-level converter
air-core inductor
coupled inductor
Multilevel
Multiphase
PCB inductor

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10.1109/APEC43599.2022.9773500

Cite this

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title = "Multiphase 3-Level Buck Passives Analysis Including 2- Phase Coupled Inductors",

abstract = "In this paper, passive components in the multiphase 3-level topology are analyzed to study the impact of increasing the number of phases on their sizes and performance. Practical converter specifications are considered, i.e., wide input voltage range, output voltage ripple, and load transient response; along with the impact of PCB design rules on air-core PCB inductor implementation. Practical restrictions show that the benefits of increasing the number of phases are limited. The multiphase 3-level topology, when compared against the multiphase buck topology, is found to achieve lower total inductor energy at the cost of increased total capacitor energy, which reflects in the overall passive components' size. The paper also presents coupling factor analysis for a 2-phase coupled inductor in the multiphase 3-level topology.",

keywords = "3-level converter, air-core inductor, coupled inductor, Multilevel, Multiphase, PCB inductor",

author = "Youssef Kandeel and Seamus O'Driscoll and Mathuna, \{Cian O.\} and Maeve Duffy",

note = "Publisher Copyright: {\textcopyright} 2022 IEEE.; 37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022 ; Conference date: 20-03-2022 Through 24-03-2022",

year = "2022",

doi = "10.1109/APEC43599.2022.9773500",

language = "English",

pages = "2064--2069",

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T1 - Multiphase 3-Level Buck Passives Analysis Including 2- Phase Coupled Inductors

AU - Kandeel, Youssef

AU - O'Driscoll, Seamus

AU - Mathuna, Cian O.

AU - Duffy, Maeve

PY - 2022

Y1 - 2022

N2 - In this paper, passive components in the multiphase 3-level topology are analyzed to study the impact of increasing the number of phases on their sizes and performance. Practical converter specifications are considered, i.e., wide input voltage range, output voltage ripple, and load transient response; along with the impact of PCB design rules on air-core PCB inductor implementation. Practical restrictions show that the benefits of increasing the number of phases are limited. The multiphase 3-level topology, when compared against the multiphase buck topology, is found to achieve lower total inductor energy at the cost of increased total capacitor energy, which reflects in the overall passive components' size. The paper also presents coupling factor analysis for a 2-phase coupled inductor in the multiphase 3-level topology.

AB - In this paper, passive components in the multiphase 3-level topology are analyzed to study the impact of increasing the number of phases on their sizes and performance. Practical converter specifications are considered, i.e., wide input voltage range, output voltage ripple, and load transient response; along with the impact of PCB design rules on air-core PCB inductor implementation. Practical restrictions show that the benefits of increasing the number of phases are limited. The multiphase 3-level topology, when compared against the multiphase buck topology, is found to achieve lower total inductor energy at the cost of increased total capacitor energy, which reflects in the overall passive components' size. The paper also presents coupling factor analysis for a 2-phase coupled inductor in the multiphase 3-level topology.

KW - 3-level converter

KW - air-core inductor

KW - coupled inductor

KW - Multilevel

KW - Multiphase

KW - PCB inductor

UR - https://www.scopus.com/pages/publications/85131661454

U2 - 10.1109/APEC43599.2022.9773500

DO - 10.1109/APEC43599.2022.9773500

M3 - Paper

AN - SCOPUS:85131661454

SP - 2064

EP - 2069

T2 - 37th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2022

Y2 - 20 March 2022 through 24 March 2022

ER -

Multiphase 3-Level Buck Passives Analysis Including 2- Phase Coupled Inductors

Abstract

Conference

Keywords

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