6 l 4 and l 2 respectively the two inductors within each of the inductor pairs l 5 and l 6 l 3 and l 4 and l 1 and l 2 preferably have the same number of winding turns although there can be a different number of turns to each of the inductor pairs so as to adjust the typical relative mpp voltage of each of the input voltages reference is now made to fig9 which illustrates a photovoltaic system 90 including multiple power combiners 604 according to an exemplary embodiment of the present invention photovoltaic system 90 has multiple series strings 902 connected in parallel to the input of dc to ac converter 900 series strings 902 have photovoltaic cells 904 a 904 c which are for instance multi junction photovoltaic cells which have three voltage outputs v 1 v 2 and v 3 with three bypass diodes connected across each voltage output of photovoltaic cells 904 a 904 c connected to each photovoltaic cells 904 a 904 c is a three voltage input power combiner 604 power combiner 604 has a single voltage output v out which is applied across the input of dc to dc converters 92 a 92 c the outputs of dc to dc converters 92 a 92 c are connected in series to form the input to dc to ac converter 900 and.