Large signal modelling of a boost converter with output filter

The continuous formulation approach has been developed for large-signal modeling of switching DC-DC converters in both continuous and discontinuous conduction. This technique can also be applied to the modeling and analysis of a complex power stage, such as a boost converter with an output filter. A large-signal analysis of a boost converter with an output filter is presented using a nonlinear formulation approach. A nonlinear continuous formulation is obtained in the form of a block diagram, which can be used to simulate the converter behavior under large-signal conditions by means of general-purpose programs such as ACSL. The model has been validated by means of an ACSL simulation.