The invention relates to a method and a system of supplying a load consisting of a plurality of fundamental loads, in particular LED and preferably for HBLED, from the electric grid with a reduced injection of current harmonics. Said control method is based on dividing the load into several modules and spacing the function of each one over time. This results in a drastic reduction in the energy that must be stored, and it is possible to avoid the use of electrolytic condensers.