Title :
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
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;
Conference_Titel :
TENCON 2010 - 2010 IEEE Region 10 Conference
Conference_Location :
Fukuoka
Print_ISBN :
978-1-4244-6889-8
DOI :
10.1109/TENCON.2010.5686353
