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International Journal of Antennas and Propagation
Volume 2015, Article ID 497647, 11 pages
http://dx.doi.org/10.1155/2015/497647
Research Article

Analysis of Power Transfer Efficiency of Standard Integrated Circuit Immunity Test Methods

1College of Information and Communication Engineering, Sungkyunkwan University, Suwon, Gyeonggi-Do 440-746, Republic of Korea
2Department of Aerospace Engineering, Inha University, Incheon 402-751, Republic of Korea

Received 23 January 2015; Accepted 15 April 2015

Academic Editor: Jiseong Kim

Copyright © 2015 Hai Au Huynh et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Direct power injection (DPI) and bulk current injection (BCI) methods are defined in IEC 62132-3 and IEC 62132-4 as the electromagnetic immunity test method of integrated circuits (IC). The forward power measured at the RF noise generator when the IC malfunctions is used as the measure of immunity level of the IC. However, the actual power that causes failure in ICs is different from forward power measured at the noise source. Power transfer efficiency is used as a measure of power loss of the noise injection path. In this paper, the power transfer efficiencies of DPI and BCI methods are derived and validated experimentally with immunity test setup of a clock divider IC. Power transfer efficiency varies significantly over the frequency range as a function of the test method used and the IC input impedance. For the frequency range of 15 kHz to 1 GHz, power transfer efficiency of the BCI test was constantly higher than that of the DPI test. In the DPI test, power transfer efficiency is particularly low in the lower test frequency range up to 10 MHz. When performing the IC immunity tests following the standards, these characteristics of the test methods need to be considered.