Volume reduction consideration in multilevel DC-DC boost converter

This paper discusses the design estimation of an inductor in the 2-level and 4-level DC-DC boost converter for the inductance and volume reductions based on maximum product of the inductor voltage and inductor charging time. Two multilevel DC-DC boost converters were compared in term of inductors design, i.e., 2-level and 4-level DC-DC boost converter. The finding shows that the required inductance and inductor volume of the 4-level DC-DC boost converter are approximately 11.11% and 19.25%, respectively compared to the 2-level DC-DC boost converter. The simulation results show that the inductor current ripple was 0.55 A when the inductors 200 μH and 1800 μH were used in the 2-level and 4-level DC-DC boost converters, respectively. Thus reductions of the inductance and the inductor volume were achieved in the 4-level DC-DC converter.