Semi-global stabilization for the Buck-Buck converter via exact tracking error dynamics passive output feedback

We demonstrate that for the Buck-Buck switched power DC-to-DC converter, a linear-time-varying state feedback control, based on exact tracking error dynamics passive output feedback, semi-globally stabilizes the tracking error to zero. The dynamic average model of the Buck-Buck converter is used as it conforms a special “energy managing” structure including an invariant field, a dissipative field, an external power source field and a control field. For this kind of structure, a natural dissipation matching condition between the dissipative field and the control field must be satisfied for the simple proposed feedback scheme to be applicable.