The analysis of high efficiency DC-DC boost converter with zero current switching (ZCS) and constant voltage/current (CV/CC) control technology for the application of non-conventional power units (NCPU) on simulation basis is presented in this paper. The significance of this converter is based on the energy recovery system. The proposed converter does not consider the leakage inductance of the transformer as a drawback and instead it uses it for efficient energy transfer, thus avoiding problems of low efficiency, voltage regulation and waveform distortions. Apart from these advantages the proposed converter has some more features like zero current switching and elimination of separate filter inductor there by optimizing the cost and size of the converter unit.