Summary
International Symposium on Nonlinear Theory and Its Applications
2015
Session Number:A4L-E
Session:
Number:A4L-E-4
Effect of the Center Frequency of Chaotic Signals on the EMI Suppression in DC-DC Converters with Chaotic Modulation
Yuhong Song, Zhong Li, Junying Niu, Kit Sang Wallace Tang, Wolfgang A. Halang,
pp.305-308
Publication Date:2015/12/1
Online ISSN:2188-5079
Summary:
Chaotic signals have the characteristics of fluctuant and continuous spectrum waveform due to pseudo-randomness of chaos. The largest peak on the spectrum is defined as the central frequency in this paper. As one kind of spread-spectrum modulation, chaotic duty modulation is adopted to suppress electromagnetic interference (EMI) in switching converters. This paper is concerned with the effect of the center frequency on chaotic modulation for EMI reduction. Simulations and experimental verification are conducted on a DC-DC Buck converter.