High efficiency auxiliary power converters

Walker, Geoffrey R. (1999) High efficiency auxiliary power converters. In Vashishtha, Yogendra Dev, Trinne, Noelene, Chandler, Paul, & Patterson, Dean (Eds.) Australasian Universities Power Engineering Conference and IEAust Electrical Energy Conference AUPEC/EECON’99 Proceedings, NTUniprint, Northern Territory University, Darwin, Australia, pp. 128-133.

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Abstract

The auxiliary load DC-DC converters of the Sunshark solar car have never been examined. An analysis of the current design reveals it is complicated, and inefficient. Some simple measures to greatly improve the efficiency are present which will achieve an overall worthwhile power saving. Two switch-mode power supply DC-DC converter designs are presented. One is a constant current supply for the LED brake and turn indicators, which allows them to be powered directly from the main DC bus, and switched only as necessary. The second is a low power flyback converter, which employs synchronous rectification among other techniques to achieve good efficiency and regulation over a large range of output powers.

Practical results from both converters, and an indication of the overall improvement in system efficiency will be offered.

Impact and interest:

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200 since deposited on 27 Feb 2014
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ID Code: 63589
Item Type: Conference Paper
Refereed: No
Additional URLs:
ISBN: 1876248378
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Industrial Electronics (090603)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Renewable Power and Energy Systems Engineering (excl. Solar Cells) (090608)
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Copyright Owner: Copyright 1999 Please consult the author
Deposited On: 27 Feb 2014 00:41
Last Modified: 27 Feb 2014 00:41

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