Open AccessDesign of high‐efficiency non‐insulated step‐up converters
Author(s) -
Schirone Luigi,
Macellari Michele
Publication year - 2015
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.2014.0554
Subject(s) - converters , power (physics) , range (aeronautics) , point (geometry) , basis (linear algebra) , operating point , thermal conduction , electrical engineering , power loss , electronic engineering , computer science , engineering , materials science , physics , voltage , mathematics , aerospace engineering , geometry , quantum mechanics , composite material
The design techniques of high‐efficiency non‐insulated step‐up converters were upgraded on the basis of a comprehensive model of power losses, also including several feeble effects whose contribution, although overshadowed at large power by conduction and switching losses, is relevant in the low‐power regime and at the maximum power point. The thorough loss analysis was used as a basis to design state‐of‐art high‐boost‐ratio three levels neutral‐point‐clamped dc–dc converters, whose experimental efficiency showed an outstanding agreement with theoretical predictions in a wide range of operating conditions.