Open AccessHigh step‐up dc–dc converter with multi‐winding CL and switched capacitor
Author(s) -
Ye Yuanmao,
Peng Wei,
Jiang Bijia
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.2018.5454
Subject(s) - switched capacitor , ćuk converter , boost converter , forward converter , flyback converter , electrical engineering , buck–boost converter , capacitor , materials science , electromagnetic coil , voltage , inductor , charge pump , low voltage , electronic engineering , engineering
To achieve a high‐voltage gain, a step‐up converter is developed by integrating coupled‐inductor (CL) and switched capacitor. Low‐voltage‐rated transistors are used to improve the efficiency as the voltage stress on the main switch of the proposed converter is reduced. Circuit configuration, operation principle, ideal voltage transfer ratio and switches’ stresses are analysed in detail. The converter's structure can be easily extended for ultra‐high‐voltage gain by increasing the number of windings of the CL. The feasibility of the proposed converter is experimentally demonstrated by a 140 W prototype converter.