A DC AC CONVERTER WITH INPUT RESONANT CIRCUIT AND SINGLE-PHASE INVERTER/

This paper presents a new dc/ac single-phase converter. By equipping t he inverter input with a resonant circuit, the switching loss in the s emiconductor devices has been reduced and the electromagnetic interfer ence problem has been rendered less severe, because the resonant volta ge pulses have lower dv/dt. Moreover, due to the resonant-circuit pres ence, a good sinusoidal voltage is applied to the inverter load. The s imulation results have proved the merits of the proposed topology and an experimental prototype has been set up on this principle to verify the theoretical results.