High Step-Up DC–DC Converter With Minimum Output Voltage Ripple

Abstract

In this paper, a new structure for high step-up dc-dc converters is proposed. In the proposed structure, it is possible to extend the topology by increasing the number of active-passive inductor cells. High voltage gain with lower duty cycle, low-current and -voltage stresses on switches, small inductors, and small size of filter are the main advantages of the proposed structure. The proposed converter is analyzed in different operating modes. In order to design the components' values of the proposed converter, the equations of output voltage ripple are calculated in each operating mode and a design procedure is proposed based on the aforementioned equations. Moreover, the losses and efficiency of the converter are calculated. In order to validate the correctness of calculations and analyses, the experimental results are given.