ノイズ源振幅変調と相関解析に基づくノイズ源 IC 毎の電磁妨害波強度推定

Translated title of the contribution: Intensity estimation of electromagnetic emission from individual ICs based on noise source amplitude modulation and correlation analysis

Shimpei Yoshino, Kengo Iokibe, Yusuke Yano, Yoshitaka Toyota

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

In order to reduce electromagnetic interference at low cost, we propose a method to estimate the intensity of the electromagnetic emission for each IC. In this method, the intensity is estimated based on the ratio of noise source levels obtained by the temporal change in EM emissions when the switching currents generated in potential noise sources are intentionally modulated. In this paper, we applied the proposed method to a printed circuit board with multiple ICs and estimated the intensity of electromagnetic emission originating from individual ICs. Moreover, the accuracy of the estimation was evaluated by comparison with measurements made when the IC was individually driven. The results indicated that the emission intensity can be estimated with high accuracy when all the emissions caused by each IC are in phase.

Translated title of the contributionIntensity estimation of electromagnetic emission from individual ICs based on noise source amplitude modulation and correlation analysis
Original languageJapanese
Pages (from-to)218-225
Number of pages8
JournalJournal of Japan Institute of Electronics Packaging
Volume22
Issue number3
DOIs
Publication statusPublished - Jan 1 2019

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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