Title :
A consideration on the mismatching between the measured electromagnetic environment and the immunity test results for electronic apparatus -a case study on noise propagation characteristics in printed circuits boards-
Author :
Nitta, Shuichi ; Mhrakami, T. ; Yoshino, Junichi ; Mutoh, Atsuko
Author_Institution :
Salesian Polytech., Machida, Japan
Abstract :
It is experimentally clarified that the frequency spectra observed at the different points in PCB (printed circuit board) show the different patterns for the same pulsive conductive noise injected on AC-mains under the following three operating conditions of personal computer such as power off and power on (program running and no program running). Finally, the conceptual equivalent circuits of PCB for three operating conditions are proposed.
Keywords :
circuit noise; electromagnetic interference; immunity testing; printed circuit testing; printed circuits; AC-mains; PCB; electromagnetic environment; electronic apparatus; immunity test; noise propagation; personal computer; printed circuits boards; pulsive conductive noise; Circuit noise; Circuit testing; Electromagnetic interference; Electromagnetic measurements; Electromagnetic propagation; Electronic equipment testing; Frequency; Immunity testing; Noise measurement; Working environment noise;
Conference_Titel :
Environmental Electromagnetics, 2009. CEEM 2009. 5th Asia-Pacific Conference on
Conference_Location :
Xian
Print_ISBN :
978-1-4244-4344-4
DOI :
10.1109/CEEM.2009.5305024
