Open AccessPresented a transformer‐less buck‐boost DC–DC structure with vast voltage range
Author(s) -
Shayeghi Hossein,
Pourjafar Saeed,
Sedaghati Farzad
Publication year - 2022
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/pel2.12257
Subject(s) - duty cycle , transformer , topology (electrical circuits) , voltage , buck converter , buck–boost converter , boost converter , diode , electronic engineering , low voltage , computer science , electrical engineering , engineering
Here, a transformer‐less buck‐boost topology is presented which can provide an appropriate voltage conversion ratio in both boost and buck mode. The voltage range of the proposed topology can be increased and decreased for the low content of the duty cycle. Thus, the maximum voltage throughout the semiconductor of the suggested converter is less against the load voltage. On the other hand, the system cost is reduced using the low rating elements in the presented converter. Moreover, only one power switch has been applied in the suggested converter that facilitates its control. In addition, there is zero voltage switching condition through the diodes that is caused to improve the efficiency of the recommended topology. To validate the impressibility of the presented topology, the operation modes analysis with related equations has been carried out. The comparison survey of the recommended structure and other equivalent structures has been investigated. Conclusively, a laboratory scheme via basic experimental waveforms for 150 W load power level in 50 kHz operation frequency is prepared that suggested to be utilized in various applications for instant green energy systems, LED drivers etc.