QFT design for current-mode PWM buck converters operating in continuous and discontinuous conduction modes

摘要

A design method using Quantitative Feedback Theory (QFT) for robust control of current-mode PWM dc-dc converters is described. The proposed method considers both Continuous and Discontinuous Conduction Mode models (CCM and DCM respectively), taking into account large load perturbations. This technique results in a robust design insensitive to parameter variations and also to model changes.