Current-mode control of DC-DC power converters: a backstepping approach

Current-mode control is a robust industrial DC-DC power converter control scheme. In this paper, a constructive control approach is employed to study the current-mode control problem of a class of DC-DC power converters, yielding a cascade control design methodology with a robust convergence criterion, together with a systematic and transparent construction-tuning procedure, a rationale to explain the robust controller functioning, and a unified framework to interpret and compare the proposed controller with the existing conventional and advanced control designs. The implementation and functioning of the proposed control design is illustrated experimentally with a boost converter