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Generation Mechanism of R.F. Noises on Power Lines

  • S. Nitta
  • A. Mutoh
  • N. Yamakoshi
  • T. Shimayama

Abstract

This paper describes that main R.F. noises induced on power supply lines are damped oscillation waveforms, clarifies their generation mechanism from the relationship between the resonance points existing on frequency-impedance characteristics measured about power supply lines and the “S” defined there and by applying the theory of resonance circuits made up of lumped constant L-C-R to the distributed constant circuits (that is, power supply lines), and insists that their suppression technique is to get rid of resonance points.

Keywords

Series Resonance Test Circuit Resonance Point Suppression Technique Parallel Resonance 
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Reference

  1. [1]
    S. Nitta, T. Shimayama: Showering Noise -Electrical Noise Generated from Inductive Circuits, Proc. of Int’l Conf. on EMI/EMC, Sept. ‘87, Bangalore, India, pp337–340Google Scholar
  2. [2]
    S. Nitta, E. Takechi: The Noise Radiated from Showering Noise, Proc. of 9th Int’l Wroclaw Symp. on EMC, Jun ‘88, Poland, pp695–700Google Scholar
  3. [3]
    J. H. Morecraft: Principles of Radio Communication, 1927, John-Wiley & Sons, pp247Google Scholar
  4. [4]
    S. Nitta, O. Nakata, T.Shimayama: A Consideration on Power-Line-Noise Estimated from Line-Impedance-Stabilization-Network-Measured Noise, 8a-Cl. Proc. of 1989 Int’l symp. on EMC, Nagoya Japan, Sep. ‘89, pp69–74Google Scholar

Copyright information

© Springer-Verlag Tokyo 1991

Authors and Affiliations

  • S. Nitta
    • 1
  • A. Mutoh
    • 1
  • N. Yamakoshi
    • 1
  • T. Shimayama
    • 2
  1. 1.Tokyo University of Agriculture and TechnologyTokyoJapan
  2. 2.Fuji Electronic Co. Ltd.TokyoJapan

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