BETTER DC-DC CONVERTERS WITH HYBRID SWITCHED INDUCTOR/SWITCHED CAPACITOR

Abstract

Elevated voltage increase DC-DC converters are widely utilized in many different applications, such
as sustainable low-voltage sources. Due to the use of a high duty cycle ratio, conventional boost converters have low
efficiency, high voltage stress, and high current ripple, which restrict their voltage gain. In this study, we propose
converters consisting of four sub-structures: an auxiliary switch with non-isolated configuration, an active switched
inductor, a passive switched inductor, and a switched capacitor cell. In addition to having a low duty cycle ratio, the
suggested structures have a significant voltage gain when compared to the traditional ones that are either switched
capacitor- or inductor-based. Efficiency is increased with the addition of an auxiliary switch, especially for high
voltage gains. A detailed discussion is given of the operation concept and steady-state analysis. Additionally, a
prototype constructed for experimental analysis validates the simulation results from the PSCAD/EMTDC program.
The findings show that using the auxiliary switch could increase the voltage gain and efficiency.