Measuring IC Switching Current Waveforms using a GMI Probe for Power Integrity Studies

Abstract

IC switching current is the main noise source of many power integrity issues in printed circuit boards. Accurate measurement of the current waveforms is critical for an effective power distribution network design. In this paper, using a giant magnetoimpedance (GMI) probe for this purpose is studied. A side-band detection and demodulation system is built up to measure various time-domain waveforms using an oscilloscope. It is found that the GMI probes are potentially suitable for this kind of time-domain measurements, but probe designs and measurement setups need further improvements for this application.

Meeting Name

2010 Asia-Pacific Symposium on Electromagnetic Compatibility (2010: Apr. 12-16, Bejing, China)

Department(s)

Electrical and Computer Engineering

Research Center/Lab(s)

Electromagnetic Compatibility (EMC) Laboratory

Keywords and Phrases

Accurate Measurement; Band Detection; Current Waveforms; Demodulation System; Giant Magnetoimpedance; Measurement Setup; Noise Source; Power Distribution Network Design; Power Integrity; Probe Design; Switching Currents; Time Domain Measurement; Time-domain Waveforms; Distributed Parameter Networks; Electromagnetic Compatibility; Electromagnetism; Printed Circuit Boards; Printed Circuit Manufacture; Probes

International Standard Book Number (ISBN)

978-1-4244-5621-5

International Standard Serial Number (ISSN)

2162-7673

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2010 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Apr 2010

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