State-space averaging of switched-inductor-cell for PWM dc-dc converters considering conduction losses in both operational modes

The presence of parasitics in the inductor-switched-cell of PWM dc-dc converters complicates the development of average-value models. Various models with different levels of accuracy have been developed using the switch-averaging and/or the state-space averaging approaches. In this paper, a new corrected full-order state-space-averaged model is set forth. The proposed model takes into account conduction losses associated with the cell´s components and is seamlessly functional in both operational modes. The final model shows improvements over previously established models