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Noise Source Identification and Noise Reduction of PDP TV Using Transfer Path Analysis

[+] Author Affiliations
Hyung-Taek Kwak, Ji-Hyun Yoon, In-Hyung Yang, Jae-Eung Oh

Hanyang University, Seoul, Korea

Jung-Youn Lee

Kyonggi University, Suwon, Korea

Paper No. IMECE2010-38830, pp. 101-103; 3 pages
doi:10.1115/IMECE2010-38830
From:
  • ASME 2010 International Mechanical Engineering Congress and Exposition
  • Volume 13: Sound, Vibration and Design
  • Vancouver, British Columbia, Canada, November 12–18, 2010
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4450-2
  • Copyright © 2010 by ASME

abstract

The module which is used for the operation of PDP TV consists of three main PCB board, X-board, Y-board, SMPS. Numerous studies on identifying noise sources of PDP TV, and reducing the noise have so far been done through experiments. However, it has been difficult to identify the exact noise sources due to correlations between sources as they are located close to each other. For that reason, Multi-Dimensional Spectral Analysis, MDSA, one of Transfer Path Analysis method, is increasingly required since it enables a quantitative analysis of each input signal’s contribution to the out signal to be carried out by eliminating the correlations of input signals. In this study, Transfer Path Analysis using MDSA is implemented to determine the quantitative noise contribution of each board. And the possibility of noise reduction is confirmed through the experimental method that isolates the most contributing board by adding sound-absorbing materials to it.

Copyright © 2010 by ASME

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