Open AccessA non-isolated high step-up converter with low ripple input current and reduced voltage stress
Author(s) -
Salehi Asghar,
Mohammad Hosein Ershadi,
Mehdi Baharizadeh
Publication year - 2022
Publication title -
facta universitatis. series electronics and energetics/facta universitatis. series: electronics and energetics
Language(s) - English
Resource type - Journals
eISSN - 2217-5997
pISSN - 0353-3670
DOI - 10.2298/fuee2201093s
Subject(s) - boost converter , ćuk converter , buck–boost converter , inductor , ripple , integrating adc , forward converter , cascade , buck converter , flyback converter , voltage , electronic engineering , diode , materials science , computer science , electrical engineering , engineering , optoelectronics , chemical engineering
In this paper a new non-isolated high step-up interleaved cascade converter is presented. In comparison with the conventional cascade boost converter, the proposed converter has a higher voltage gain, lower input current ripple and reduced voltage stress for the switches and diodes. Besides, unlike the conventional cascade boost converter, in the proposed converter the input current is shared between inductors and hence the converter can be implemented with lower current rated inductors. Thus, the converter size and conduction losses are reduced and the efficiency is increased. The proposed converter is analyzed and experimental results of a 200W laboratory prototype are presented.