parasitic body diodes that introduce high switching losses for reactive power provision capability the dc ac inverter in accordance with the invention should be able provide positive active states with negative i n and negative active states with positive i n that correspond to region r 2 and region r 4 respectively in fig4 in fig9 negative line current i n path at positive active states is illustrated on this path the freewheeling diodes d 1 d 4 become forward biased and they provide current for the backflow of the electric energy to the dc bus capacitor c in fig1 positive line current i n path at negative active state is illustrated on this path the freewheeling diodes d 2 d 3 and d 5 become forward biased and they provide current for the backflow of the electric energy to the dc bus capacitor c according to the sign of the line current i n zero states of the dc ac inverter can be provided through the pairs s 3 d 6 or s 6 d 3 as shown in fig6 and fig8 with decoupling of dc input terminals 1 2 and the inverter voltage output terminals 3 4 in.