Noise Analysis of DC-to-DC Converter with Random-Switching Control

Tetsuro TANAKA  Hiroshi KAMEDA  Tamotsu NINOMIYA  

IEICE TRANSACTIONS on Communications   Vol.E75-B   No.11   pp.1142-1150
Publication Date: 1992/11/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Telecommunications Energy Systems and Switching Power Converters)
converter,  switching noise,  noise reduction,  random process,  EMI,  EMC,  

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The effectiveness of random-switching control, by which the switching-noise spectrum is spread and its level is reduced, is briefly described through experimental results. The noise spectrum by random switching is analyzed in general approach including a noise-generation model and a switching function with random process. Taking the normal distribution as an instance, the discussion on the amount of random perturbation is made quantitatively. The validity of the analysis is confirmed experimentally by a series of pulse serving as ideal switching-noise.