Modelling and Analysis of a Tapped Inductor Boost Converter

This paper presents the systematic derivation, circuit modelling, and performance analysis of a tapped-inductor boost DC–DC converter obtained from the classical boost converter by replacing the input inductor with a tapped magnetic structure. The tapped inductor provides transformer-like action that increases the voltage gain without requiring extreme duty ratios, while retaining the non-isolated single-switch architecture. The linearized small-signal models derived from averaged state-space equations are the standard tool for predicting control-to-output transfer functions, and for designing compensators that guarantee stability and dynamic performance.