Title :
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
fDate :
Sept. 28 2014-Oct. 1 2014
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;
Conference_Titel :
Power Engineering Conference (AUPEC), 2014 Australasian Universities
Conference_Location :
Perth, WA
DOI :
10.1109/AUPEC.2014.6966574
