This paper contributes to the conducted EMI
reduction generated by switched power converters operating in multiconverter arrangement. The EMI reduction is achieved by
means of the combination of two techniques: interleaving and
switching frequency modulation. The effectiveness of such methods in terms of EMI reduction is experimentally validated
in a four channel parallel buck converter. The technique that provides the best attenuation results is identified. Finally, special attention has been paid to possible undesired side-effects produced by these techniques. For this reason the converter
efficiency and output voltage ripple are evaluated.