Open AccessSignal flow graph modelling of a switching converter with single inductor triple output DC–DC structure
Author(s) -
Abbasi Majid,
Afifi Ahmad,
Alizadeh Pahlavani Mohammad Reza
Publication year - 2018
Publication title -
iet power electronics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.637
H-Index - 77
eISSN - 1755-4543
pISSN - 1755-4535
DOI - 10.1049/iet-pel.2017.0289
Subject(s) - inductor , ripple , converters , signal flow graph , signal (programming language) , control theory (sociology) , transfer function , computer science , topology (electrical circuits) , small signal model , electronic engineering , physics , voltage , engineering , electrical engineering , control (management) , artificial intelligence , programming language
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.