A High Voltage Gain Step-up Resonant DC-DC Converter Topology with Reduced Switch Count
The resonant converters have attracted a lot of attention because of their high efficiency and low switching losses. This paper presents the analysis of a high voltage gain non-isolated step-up DC-DC converter topology using resonant technology. The proposed converter configuration has reduced number of power semiconductor switches compared to the existing isolated converter topology having four semiconductor switches. The proposed topology employs capacitor-inductor-capacitor (C-L-C) resonant circuit configuration. The size of the proposed converter and the losses in the converter are greatly reduced. Both the converters with resonant components are simulated in Matlab/Simulink platform to validate their performance. The time-domain simulation results demonstrate that the proposed non-isolated converter gives improved voltage gain compared to the existing two-stage isolated resonant DC-DC converter.