Abstract
In this paper, an improved structures of modified CUK converter (MCCVLSI) is presented using Voltage Lift Switched Inductor (VLSI) module. The proposed converter provides a negative high DC voltage which is a doable solution for renewable energy applications. A three new modified CUK converter structures are derived with the help of VLSI module as; MCCVLSI-XLL, MCCVLSI-LYL and MCCVLSI-LLZ. The complete mathematical analysis is provided to calculated voltage conversion ratio. Moreover, the proposed structures are compared with each others in terms of voltage conversion ratio and number of components. The working mode of MCCVLSI-XLL is explained in details. The qualities of the presented structures are reviewed in details. The simulation results are provided and the obtained results show a good agreement with theoretical analysis.