Modulation technique to reduce EMI in power multiconverters

J. Mon; J. Gago; D. González; J. Balcells; R. Fernández; I. Gil; P. Bogónez

doi:10.1587/elex.6.511

LETTER

Modulation technique to reduce EMI in power multiconverters

J. Mon, J. Gago, D. González, J. Balcells, R. Fernández, I. Gil, P. Bogónez

Author information

Keywords: spread-spectrum clock generation (SSCG), switching frequency modulation (SFM), interleaving, conducted EMI, power converters.

JOURNAL FREE ACCESS

2009 Volume 6 Issue 8 Pages 511-515

DOI https://doi.org/10.1587/elex.6.511

Details

Abstract

A new technique to reduce EMI in modular power multiconverters is described. The technique is based on a combination of switching frequency modulation and a variable delay between commutation signals of the single converters. The proposed technique has been validated experimentally in a four converters parallel topology. A significant EMI reduction has been obtained with regard to conventional techniques.

Corresponding author

Register with J-STAGE for free!