Two-transistor step-down DC/DC converters with fault-tolerant capability

Author

Lu, Dylan Dah-Chuan ; Soon, John Long ; Verstraete, Dries

Author_Institution

Sch. of Electr. & Inf. Eng., Univ. of Sydney, Sydney, NSW, Australia

fYear

2014

fDate

Sept. 28 2014-Oct. 1 2014

Firstpage

1

Lastpage

5

Abstract

This paper presents a family of two-transistor step-down dc/dc converters with fault-tolerant capability which is derived through graph theoretic approach. The fault-tolerant property deals with open-circuit fault of one of the power transistors in a two-transistor dc/dc converter structure. Under normal operation, either one of the two transistors can be used to control the power flow and the other transistor is idle. When the fault occurs, the other transistor will be activated to provide an alternate current path to continue converter operation and maintain output regulation. Derivation procedure and some experimental results are reported.

Keywords

DC-DC power convertors; fault tolerance; graph theory; power transistors; fault tolerant capability; graph theoretic approach; open circuit fault; power transistors; two transistor step down DC DC converters; Circuit faults; Educational institutions; Equivalent circuits; Fault tolerance; Fault tolerant systems; Inductors; Transistors; dc/dc converter; fault-tolerant; graphs; open-circuit fault;

fLanguage

English

Publisher

ieee

Conference_Titel

Power Engineering Conference (AUPEC), 2014 Australasian Universities

Conference_Location

Perth, WA

Type

conf

DOI

10.1109/AUPEC.2014.6966574

Filename

6966574