Paper Info
Title
Markov Chain Modeling for Reliability Analysis of Multi-Phase Buck Converters
Abstract
In recent years, the structure of multi-phase buck converter also called Interleaved Buck Converter (IBC) has gained considerable attention. The advantages of the IBC in comparison to the conventional Buck converter (CBC) are the lower output current ripple, higher efficiency, fast transient response, lower electromagnetic interference and higher reliability. Since more than one stage is employed in the IBC, this converter is highly reliable. In this paper, the reliability and mean time to failure (MTTF) of the CBC, and two- and three-stage IBCs are figured out. Using the obtained results and considering various scenarios, a comprehensive comparison is provided. In addition, the operation of the converter in case of fault occurrence for high and low capacities is analyzed and reliability is evaluated in each state. The relation between the reliability and temperature of semiconductor elements is discussed. Furthermore, a laboratory-scaled prototype is used to extract the experimental results of the temperature variation of the elements during a fault. Markov model is used to evaluate the analyzed reliability.
Year
DOI
Venue
2020
10.1142/S021812662050139X
JOURNAL OF CIRCUITS SYSTEMS AND COMPUTERS
Keywords
DocType
Volume
Markov process,reliability analysis,mean time to failure,multi-phase buck converter,thermal image
Journal
29
Issue
ISSN
Citations 
9.0
0218-1266
0
PageRank 
References 
Authors
0.34
0
5
Name
Order
Citations
PageRank
Elias Shokati Asl172.32
Mehran Sabahi26717.96
Mehdi Abapour394.75
Alireza Eyvazizadeh Khosroshahi400.34
Hossein Khoun-Jahan500.34