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Hybrid mode-switched control of DC-DC boost converter circuits

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2 Author(s)
P. Gupta ; Dept. of Electr. Eng., Indian Inst. of Technol., Kharagpur, India ; A. Patra

This paper has proposed a new switching scheme for controlling dc-dc boost converter circuits. The converter is represented as a hybrid system with three modes of operation. The switching among these modes is governed by the adjustable reference voltage and a reference current which are calculated by an energy balance principle. The scheme has been applied to a realistic converter circuit modeled with various parasitic components. All the specifications related to the ripple voltage, line and load regulation are shown to be achievable by relating them to the switching surfaces, namely a reference voltage and a reference current. The state trajectories have been shown to reach a hybrid limit cycle already proved to be super-stable from consideration of chaos. Numerical results clearly bring out the advantages of the proposed control scheme.

Published in:

IEEE Transactions on Circuits and Systems II: Express Briefs  (Volume:52 ,  Issue: 11 )