Open AccessBlock diagrams and transfer functions of control‐to‐output and line‐to‐output for peak current‐mode controlled boost converters
Author(s) -
Chen ShenYaur
Publication year - 2013
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.2012.0013
Subject(s) - block diagram , transfer function , control theory (sociology) , converters , diagram , current (fluid) , block (permutation group theory) , line (geometry) , loop (graph theory) , function block diagram , voltage , boost converter , transfer (computing) , computer science , mathematics , control (management) , engineering , algorithm , electrical engineering , geometry , combinatorics , artificial intelligence , database , logic gate , parallel computing
This study presents a systematic multi‐loop block diagrams for the peak current‐mode controlled boost converter in order to investigate its intrinsic properties. Under low frequencies, the proposed block diagram of control‐to‐output can approximate the current loop of the converter to a current source. Furthermore, the block diagram of line‐to‐output clearly shows three forward paths affecting the AC voltage output. These block diagrams also make it possible to derive the control‐to‐output and line‐to‐output transfer functions. Finally, an actual boost circuit is provided and tested. From the experimental and simulation results, the proposed transfer functions are verified.