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In this study, a new structure is proposed for non-isolated boost dc-dc converters using voltage-lift technique. The increasing voltage gain in the proposed converter is achieved step-to-step by a simple structure. In the proposed converter, there is a direct connection to an inductor in input side which provides free current ripple for the input source. Here, the proposed converter performance analysis and their relations are presented in continuous conduction mode and discontinuous conduction mode as well as voltage gain equations for each mode in detail. Then, switching current stress equations in each mode and critical inductance equations are extracted for design considerations. Finally, the carried theoretical analysis and satisfying operation of the proposed converter are verified via experimental results of laboratory prototype.

In this paper, a new structure of nonisolated boost DC–DC converters is proposed. The operation of the proposed structure in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) is presented. Then, the critical inductance relation between CCM and DCM is obtained. The voltage gain and current stress of switches are calculated. Finally, the validity of the presented theoretical issues is reconfirmed by using simulation results obtained from PSCAD/EMTDC software.

In this paper, a new boost dc-dc converter based on voltage lift (VL) technique is proposed. There is any need for transformer, coupled inductances and sequential connections in the proposed boost converter topology. In this paper, the operating of proposed boost dc-dc converter in continuous conduction mode (CCM) and discontinuous conduction mode (DCM) was discussed, and the current and voltage equations of the inductors and capacitors were obtained with details. So, the value of critical inductance and the operating of the proposed dc-dc converter between CCM and DCM were presented. The switching currents of each switch were analyzed. The switches, diodes, inductors and capacitors root-mean-square (RMS) current stresses were discussed. Finally, the correct performance of the proposed converter based on presented theoretical issues is verified by using simulation results on EMTDC/PSCAD software program and experimental results by using laboratory prototype. Figure 11. Current simulation results of the switches S 1 and S 2 in the proposed boost dc-dc converter; (a) in CCM; (b) critical operating mode; (c) in DCM.