Low temperature evaluation of commercial DC/DC converters for military applications

Author

Yoo, E.J. ; Lee, T.Y. ; Choi, W.Y. ; Park, Y.W.

Author_Institution

BK21 Mechatron. Group, Chungnam Nat. Univ., Daejeon, South Korea

fYear

2010

fDate

21-24 Nov. 2010

Firstpage

1247

Lastpage

1250

Abstract

A DC/DC converter is an electronic circuit which converts a source of direct current (DC) from one voltage level to another. Military applications require electronics that withstand low temperature and impact. This paper presents the low temperature evaluation of the commercial DC/DC converters, identification of the problem with them, suggestion of a method to overcome it, and the low temperature evaluation of the suggested DC/DC converter. From the experiment, the commercial DC/DC converters are sensitive to the operating temperature, especially 20 T: below zero. Based on this finding, a circuit is suggested, which replaces electrolyte capacitors to solid capacitors. It is observed that the DC/DC converter with solid capacitors works well at the temperature of 40 T: below zero. It is concluded that the DC/DC convert with solid capacitor can be used for military applications such as low temperature operation.

Keywords

DC-DC power convertors; capacitors; military equipment; DC-DC converters; electronic circuit; low-temperature evaluation; military applications; solid capacitors; DC/DC Converter; Elecrolyte Capacitor; Low Temperature Operation; Solid Capacitor;

fLanguage

English

Publisher

ieee

Conference_Titel

TENCON 2010 - 2010 IEEE Region 10 Conference

Conference_Location

Fukuoka

ISSN

pending

Print_ISBN

978-1-4244-6889-8

Type

conf

DOI

10.1109/TENCON.2010.5686353

Filename

5686353