Abstract
This study describes the systematic signal flow graph (SFG) modelling of a single inductor triple output (SITO) DC/DC converters. The multi-stages operation of SITO converter and the parasitic elements cause obtaining a model to predict the all behaviours of converter be more difficult than typical converters. By SFG method, all small-signal transfer functions can be derived. Derivations of large-signal, small-signal and steady-state models are demonstrated by considering a single inductor triple output boost/boost convert. The effect of inductor ripple current has been considered to determine the acceptable region of SFG modelling method. Simulation and experimental results are included to show the validity of the obtained model.
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