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The 77 K operation of a multi-resonant power converterThe liquid-nitrogen temperature (77 K) operation of a 55 W, 200 kHz, 48/28 V zero-voltage switching multi-resonant dc/dc converter designed with commercially available components is reported. Upon dipping the complete converter (power and control circuits) into liquid-nitrogen, the converter performance improved as compared to the room-temperature operation. The switching frequency, resonant frequency, and the characteristic impedance did not change significantly. Accordingly, the zero-voltage switching was maintained from no-load to full-load for the specified line variations. Cryoelectronics can provide high density power converters, especially for high power applications.
Document ID
19950020953
Document Type
Conference Paper
Authors
Ray, Biswajit (National Academy of Sciences - National Research Council Cleveland, OH., United States)
Gerber, Scott S. (NYMA, Inc. Brook Park, OH., United States)
Patterson, Richard L. (NASA Lewis Research Center Cleveland, OH, United States)
Myers, Ira T. (NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
September 6, 2013
Publication Date
May 1, 1995
Subject Category
ELECTRONICS AND ELECTRICAL ENGINEERING
Report/Patent Number
E-9669
NAS 1.15:106941
NASA-TM-106941
Meeting Information
Power Engineering Society Conference(Atlanta, GA)
Funding Number(s)
PROJECT: RTOP 233-02-0C
CONTRACT_GRANT: NAS3-27186
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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