This paper presents an novel multilevel inverter employing series connected transformers to reduce the harmonics of output voltage. The proposed inverter consists of several full-bridge modules and their corresponding transformers. Continuous output voltage levels can be generated from a suitable selection of turns ratio of transformer. And it appears an integral ratio to input DC source. Because of its series operation of transformers, output filter inductor is not required. The validity of the proposed system is verified through the experimental results using a 1.5 [kW] prototype, which can generate a 220 $[V_ac]$ output voltage from $[V_dc]$ input.