Cryogenic evaluation of an advanced DC/DC converter module for deep space applications

Author

Elbuluk, M.E. ; Hammoud, A. ; Gerber, S.S. ; Patterson, R.

Author_Institution

Akron Univ., OH, USA

Volume

1

fYear

2002

fDate

13-18 Oct. 2002

Firstpage

227

Abstract

DC/DC converters are widely used in power management, conditioning, and control of space power systems. Deep space applications require electronics that withstand cryogenic temperature and meet a stringent radiation tolerance. In this work, the performance of an advanced, radiation-hardened (radhard) commercial DC/DC converter module was investigated at cryogenic temperatures. The converter was investigated in terms of its steady state and dynamic operations. The output voltage regulation, efficiency, terminal current ripple characteristics, and output voltage response to load changes were determined in the temperature range of 20/spl deg/C to - 140/spl deg/C. These parameters were obtained at various load levels and at different input voltages. The experimental procedures along with the results obtained on the investigated converter are presented and discussed.

Keywords

DC-DC power convertors; cryogenics; radiation hardening (electronics); space vehicle electronics; voltage control; 20 to -140 degC; DC/DC converter module; conditioning; cryogenic evaluation; cryogenic temperature; deep space applications; dynamic operation; efficiency; load changes; output voltage regulation; output voltage response; power management; radiation tolerance; radiation-hardened DC/DC converter; space power systems; steady state operation; terminal current ripple characteristics; Control systems; Cryogenics; DC-DC power converters; Energy management; Industrial power systems; Power system control; Power system dynamics; Power system management; Temperature; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Industry Applications Conference, 2002. 37th IAS Annual Meeting. Conference Record of the

Conference_Location

Pittsburgh, PA, USA

ISSN

0197-2618

Print_ISBN

0-7803-7420-7

Type

conf

DOI

10.1109/IAS.2002.1044093

Filename

1044093