The resonant DC-DC multilevel boost converter

The dc-dc multilevel boost converter is a combination of a traditional boost converter with a diode-capacitor voltage multiplier, it presents several advantages, such as: continuous input current, high voltage gains and low voltage stress in semiconductors, its main disadvantage is the spike type current between capacitors. This paper presents and analysis of an improved version of the multilevel boost converter, in which the charge interchange between capacitors is resonant-type, this is achieved by adding a small resonant inductor. Experimental results demonstrate the principle of the proposition.