New converter circuitry for high v applications using Switched Inductor Multilevel Converter
This paper presents an analysis and design of a high voltage gain DC-DC converter. This converter is a single stage DC-DC multilevel boost converter topology with very large voltage gain conversion ratio. It is called a Switched Inductor Multilevel Boost Converter (SIMLBC). It converts a low voltage level to high voltage level to be used in any application that requires high voltages. The capacitors in the output circuit provide a different output dc levels suitable for multilevel inverter applications. The main problem of any multilevel converter is the efficiency because there are a lot of components that consume power. So this work investigates practical circuit analysis. The non-ideal voltage gain of the new topology and their efficiency of the system are derived. The equivalent series resistance (ESR) of the capacitors, dc winding resistance (DCR) of the two inductors, the forward voltage of the diodes, and the drain-source resistance of the switch have been taken into consideration. The calculated efficiency of the system is compared to the simulation one to validate the analyses. Mathcad software is used to compare the simulation with the calculation and experimental results. Results provide the guidelines for an accurate and efficient design.