A Load-variable Noise-source Equivalent Circuit Model for DC-DC Converter Considering Cubic Spline Interpolaion

Shuqi Zhang; Kengo Iokibe; Yoshitaka Toyota

doi:10.1109/ICSJ55786.2022.10034727

A Load-variable Noise-source Equivalent Circuit Model for DC-DC Converter Considering Cubic Spline Interpolaion

Shuqi Zhang, Kengo Iokibe, Yoshitaka Toyota

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The black-box models have been proposed to predict electromagnetic interference from power electronic devices owing to their modeling simplicity. During the modeling process, the load value is normally kept fixed so that the device can perform almost linearly since the load variation changes the switching conditions of the power supply and the nonlinear performance occurs. This work examines the accuracy of predicted interference voltages by using a black-box model, a measurement-based 2-port equivalent circuit model for a DC-DC buck converter considering the load effect. Then a numerical fitting tool, cubic spline interpolation is applied to identify the parameters noise-source equivalent circuit without measuring at the same load value. As a result, it is found that the input port noise source predicted by cubic spline interpolation has a good agreement with parameter identification result.

Original language	English
Title of host publication	2022 IEEE CPMT Symposium Japan, ICSJ 2022
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	154-157
Number of pages	4
ISBN (Electronic)	9781665486132
DOIs	https://doi.org/10.1109/ICSJ55786.2022.10034727
Publication status	Published - 2022
Event	11th IEEE CPMT Symposium Japan, ICSJ 2022 - Kyoto, Japan Duration: Nov 9 2022 → Nov 11 2022

Publication series

Name	2022 IEEE CPMT Symposium Japan, ICSJ 2022

Conference

Conference	11th IEEE CPMT Symposium Japan, ICSJ 2022
Country/Territory	Japan
City	Kyoto
Period	11/9/22 → 11/11/22

Keywords

conducted emissions
cubic spline interpolation
DC-DC converter
load variable
noise-source equivalent circuit model
waveform decomposition

ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials
Instrumentation
Atomic and Molecular Physics, and Optics

Access to Document

10.1109/ICSJ55786.2022.10034727

Cite this

A Load-variable Noise-source Equivalent Circuit Model for DC-DC Converter Considering Cubic Spline Interpolaion. / Zhang, Shuqi; Iokibe, Kengo ; Toyota, Yoshitaka.

2022 IEEE CPMT Symposium Japan, ICSJ 2022. Institute of Electrical and Electronics Engineers Inc., 2022. p. 154-157 (2022 IEEE CPMT Symposium Japan, ICSJ 2022).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Zhang, S, Iokibe, K & Toyota, Y 2022, A Load-variable Noise-source Equivalent Circuit Model for DC-DC Converter Considering Cubic Spline Interpolaion. in 2022 IEEE CPMT Symposium Japan, ICSJ 2022. 2022 IEEE CPMT Symposium Japan, ICSJ 2022, Institute of Electrical and Electronics Engineers Inc., pp. 154-157, 11th IEEE CPMT Symposium Japan, ICSJ 2022, Kyoto, Japan, 11/9/22. https://doi.org/10.1109/ICSJ55786.2022.10034727

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abstract = "The black-box models have been proposed to predict electromagnetic interference from power electronic devices owing to their modeling simplicity. During the modeling process, the load value is normally kept fixed so that the device can perform almost linearly since the load variation changes the switching conditions of the power supply and the nonlinear performance occurs. This work examines the accuracy of predicted interference voltages by using a black-box model, a measurement-based 2-port equivalent circuit model for a DC-DC buck converter considering the load effect. Then a numerical fitting tool, cubic spline interpolation is applied to identify the parameters noise-source equivalent circuit without measuring at the same load value. As a result, it is found that the input port noise source predicted by cubic spline interpolation has a good agreement with parameter identification result.",

keywords = "conducted emissions, cubic spline interpolation, DC-DC converter, load variable, noise-source equivalent circuit model, waveform decomposition",

author = "Shuqi Zhang and Kengo Iokibe and Yoshitaka Toyota",

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AB - The black-box models have been proposed to predict electromagnetic interference from power electronic devices owing to their modeling simplicity. During the modeling process, the load value is normally kept fixed so that the device can perform almost linearly since the load variation changes the switching conditions of the power supply and the nonlinear performance occurs. This work examines the accuracy of predicted interference voltages by using a black-box model, a measurement-based 2-port equivalent circuit model for a DC-DC buck converter considering the load effect. Then a numerical fitting tool, cubic spline interpolation is applied to identify the parameters noise-source equivalent circuit without measuring at the same load value. As a result, it is found that the input port noise source predicted by cubic spline interpolation has a good agreement with parameter identification result.

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A Load-variable Noise-source Equivalent Circuit Model for DC-DC Converter Considering Cubic Spline Interpolaion

Abstract

Publication series

Conference

Keywords

ASJC Scopus subject areas

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