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State-space average-value modelling of capacitor-based switching stages: including conduction losses

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3 Author(s)
Davoudi, A. ; Univ. of Illinois at Urbana-Champaign, Urbana ; Jatskevich, J. ; Chapman, P.L.

State-space average-value models of a second-order pulse-width modulated DC-DC converter have been proposed in the literature to represent the non-ideal inductor-based switching stages. This Letter extends previous works and proposes a new full-order, state-space average-value model of fourth-order DC-DC converters, which considers the non-ideal capacitor-based switching stages. The proposed model is seamlessly functional in all operational modes and has been verified by hardware measurement and detailed simulation in both time and frequency domains.

Published in:

Electronics Letters  (Volume:43 ,  Issue: 16 )