Modelling of Conduction Losses in Dc-to-Dc Converters Operating in Boundary Conduction Mode

摘要

In this paper, following the averaged switch approach, an averaged model, including conduction losses for the switch network of the pulse width modulated (PWM) dc-to-dc converters operating at the boundary between continuous conduction mode (CCM) and discontinuous inductor current mode (DICM) is developed. The model is verified through PSpice and CASPOC simulation for the boost and buck converters. The averaged model is general, and can be applied to different dc-to-dc converters, without deriving a different network model for each converter configuration.