A New Non-Isolated High-Gain Single-Switch DC-DC Converter with Continuous Input Current

This paper introduces a new non-isolated, high-gain converter, derived from a boost topology, thus ensuring continuous input current. A voltage multiplier cell (VMC) is integrated into the topology, with an emphasis on mitigating the typical drawbacks associated with VMCs. This refined boost topology features a high-side switch, simplifying the drive circuit. Notably, the converter achieves a high voltage gain with a single MOSFET and five diodes. A comprehensive analysis of the converter, under ideal and non-ideal conditions and in continuous conduction mode (CCM), is presented. The study also provides the requirements for CCM and discusses sensitivity analysis of voltage gain and efficiency, supported by detailed plots. A prototype, designed with 80
$W$
output power and 80
$V$
output voltage, validates the proposed converter. Experimental results confirm an eight-fold voltage gain.