Two-port Noise Source Equivalent Circuit Model for DC/DC Buck Converter with Consideration of Load Effect

Shuqi Zhang, Taishi Uematsu, Kengo Iokibe, Yoshitaka Toyota

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

As the conducted disturbance of a power converter changes with its load value, the relationship between the electromagnetic interference of the power converter and its load needs to be investigated. This work examines a 2-port equivalent circuit model for a DC/DC buck converter with consideration of the load effect. Factors that influence the model accuracy are also discussed. We used a synchronous buck converter operating under a continuous conduction mode condition to determine the load effect and evaluate the model. Results showed that the input port of the fixed-load model and load-variable model had good accuracy up to 70 MHz. We also predicted the load effect on input port noise and found that the input port noise of an 8.2-? load could be predicted from the other two load values (6.6 ? and 11.6 ?).

Original languageEnglish
Title of host publicationProceedings of the 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, EMC EUROPE 2020
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781728155791
DOIs
Publication statusPublished - Sep 23 2020
Event2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, EMC EUROPE 2020 - Virtual, Rome, Italy
Duration: Sep 23 2020Sep 25 2020

Publication series

NameProceedings of the 2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, EMC EUROPE 2020

Conference

Conference2020 International Symposium on Electromagnetic Compatibility - EMC EUROPE, EMC EUROPE 2020
Country/TerritoryItaly
CityVirtual, Rome
Period9/23/209/25/20

Keywords

  • DC/DC buck converter
  • EMI prediction
  • black-box method
  • load effect

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Safety, Risk, Reliability and Quality
  • Radiation
  • Computer Networks and Communications
  • Hardware and Architecture
  • Aerospace Engineering

Fingerprint

Dive into the research topics of 'Two-port Noise Source Equivalent Circuit Model for DC/DC Buck Converter with Consideration of Load Effect'. Together they form a unique fingerprint.

Cite this