Open AccessA soft‐switching inverting high step‐down converter with a pair of coupled inductors and self‐driven synchronous rectifier
Author(s) -
Hosseinabadi Farzad,
Soleymani Behzad,
Adib Ehsan,
Islam Md. Rabiul,
Farzanehfard Hosein,
Kouzani Abbas Z.,
Mahmud M. A. Parvez
Publication year - 2021
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/pel2.12191
Subject(s) - inductor , duty cycle , topology (electrical circuits) , diode , rectifier (neural networks) , electronic engineering , computer science , voltage , engineering , electrical engineering , stochastic neural network , machine learning , recurrent neural network , artificial neural network
In this paper, a non‐isolated coupled‐inductor high step‐down converter with extended duty cycle is proposed, which operates under discontinuous conduction mode. The soft‐switching condition is provided for all the switches and diodes, which results in the reduction of the switching losses, and the losses related to diode reverse recovery problem. Also, a self‐drive circuit is used to automatically generate the ON and OFF gate signals of the synchronous rectifier, which recovers the gate energy and reduces the complexity. In this topology, only a single coupled inductor is proposed which decreases the size and cost of the proposed converter. A 200 W laboratory prototype is implemented, and its results confirm the validity of theoretical analysis and advantages of the proposed converter over previous structures.