This paper proposes an elementary super lift boost converter to achieve high voltage transfer gains, high conversion ratio in addition with isolated full bridge boost converter are used in high voltage applications. The proposed circuit eliminates some of the drawbacks in the conventional full bridge boost converter such as voltage and current stresses through the power converter devices, possibility of voltage spike, conduction losses, addition of complex snubber and auxiliary circuits etc. soft switching is achieved at all operating conditions over a wide load range. The state space equation of the proposed topology is derived in detail. The same model can be simulated using Mat lab software to ensure the feasibility of the converter with 48 V as input and dc output voltage of 433 V is obtained.