Open AccessHigh Efficiency Buck-Boost Converter with Three Modes Selection for HV Applications using 0.18 μm Technology
Author(s) -
Fouad Farah,
Mustapha El Alaoui,
Abdelali El Boutahiri,
Mounir Ouremchi,
Karim El Khadiri,
Ahmed Tahiri,
Hassan Qjidaa
Publication year - 2020
Publication title -
ecti transactions on electrical eng. / electronics and communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.148
H-Index - 7
ISSN - 1685-9545
DOI - 10.37936/ecti-eec.2020182.222580
Subject(s) - buck converter , buck–boost converter , boost converter , ćuk converter , voltage , electronic engineering , transistor , computer science , inrush current , power (physics) , cmos , electrical engineering , engineering , control theory (sociology) , control (management) , physics , quantum mechanics , transformer , artificial intelligence
In this paper, we aim to make a detailed study on the evaluation and the characteristics of the non-inverting buck–boost converter. In order to improve the behaviour of the buck-boost converter for the three operating modes, we propose an architecture based on peak current-control. Using a three modes selection circuit and a soft start circuit, this converter is able to expand the power conversion efficiency and reduce inrush current at the feedback loop. The proposed converter is designed to operate with a variable output voltage. In addition, we use LDMOS transistors with low on-resistance, which are adequate for HV applications. The obtained results show that the proposed buck-boost converter perform perfectly compared to others architecture and it is successfully implemented using 0.18 μm CMOS TSMC technology, with an output voltage regulated to 12V and input voltage range of 4-20 V. The power conversion efficiency for the three operating modes buck, boost and buck-boost are 97.6%, 96.3% and 95.5% respectively at load current of 4A.