Averaging Method for PWM DC-DC Converters Operating in Discontinuous Conduction Mode with Feedback

In this paper, a one-cycle-average (OCA) discrete-time model for PWM dc-dc converter basedonclosed-loop control method for discontinuous conduction mode (DCM) is presented. It leadstoexact discrete-time mathematical representation of the OCA values of the output signal evenatlow frequency. It also provides the exact discrete-time mathematical representation oftheaverage values of other internal signals with little increase in simulation time. A comparison ofthismodel to other existing models is presented through a numerical example of boostconverter.Detailed simulation results confirm the better accuracy and speed of the proposedmodel.