Analysis of Capacitor Voltage Imbalance in Hybrid Converters and Inherently Balanced Operation Using Symmetric Architecture

This letter investigates the origin of flying capacitor voltage imbalance in hybrid converters. An intuitive voltage–charge relationship is established to give a general explanation balance The applied devise relatively simple and method identify behavior performance difference inductor current balancing converters for $V_{\text{out}}< \frac{V_{\text{in}}}{N}$ cases. Conventional with an even number charging intervals are shown be susceptible imbalance, while capacitors inductors having odd have inherently balanced operations. As direct result analysis, new symmetric architecture operation three-level buck introduced achieve inherent voltages, which can other multilevel Hardware prototypes implemented measured verification analytical analysis