In this paper, a zero current switching Luo converter has been presented. Here, a series resonant cell is integrated with a Luo converter and the required conditions are achieved for zero current commutation of the switch and zero voltage commutation of the diodes. The major advantages of this soft switching converter include its high voltage transfer gain, high efficiency and stress reduction of the switch and diodes. Moreover, analysis of the ZCS Luo converter in steady state region is performed and curves of voltage transfer gain of the converter are derived in different operating points. In order to improve the dynamic and static performances of the proposed converter, a proportional integral(PI) and sliding mode controller has been used. The performance of the converter under the proposed controller is verified using MATLAB software. The results show the excellent behavior of the proposed converter under the designed controller.

Keywords: Dc/dc converters, Soft switching, Zero current switching (ZCS), Transfer voltage gain, Sliding mode control (SMC)