Current sharing for synchronised DC/DC converters operating in discontinuous conduction mode

A new approach for active current sharing in parallel-connected power converters, based on filtering capacitor current properties, is presented in the paper. Due to the total autonomy of the module, the current sharing bus is eliminated. In addition, the proposed method ensures a significant reduction of switching currents flowing through the output interconnections, as well as reduction of accompanying EMI. The implementation of the proposed method is simple, reliable and cost effective.