Title :
77 K operation of a multi-resonant power converter
Author :
Ray, Biswajit ; Gerber, Scott S. ; Patterson, Richard L. ; Myers, Ira T.
Author_Institution :
NASA Lewis Res. Center, Cleveland, OH, USA
Abstract :
The 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. Cryo-electronics can provide high density power converters, especially for high power applications
Keywords :
cryogenic electronics; electric impedance; resonant power convertors; switching circuits; 200 kHz; 28 V; 48 V; 55 W; 77 K; control circuits; converter performance; cryo-electronics; impedance; liquid-nitrogen temperature operation; multi-resonant DC/DC converter; multi-resonant power converter; power circuits; resonant frequency; switching frequency; zero-voltage switching; Circuits; High temperature superconductors; NASA; Power electronics; Power generation; Power semiconductor switches; Power system reliability; Superconducting transition temperature; Switching converters; Zero voltage switching;
Conference_Titel :
Power Electronics Specialists Conference, 1995. PESC '95 Record., 26th Annual IEEE
Conference_Location :
Atlanta, GA
Print_ISBN :
0-7803-2730-6
DOI :
10.1109/PESC.1995.474792
