Title :
Low temperature operation of a three-level buck DC-DC converter
Author :
Pérez-Guerrero, Fausto F. ; Ray, Biswajit ; Patterson, Richard L.
Author_Institution :
Dept. of Electr. & Comput. Eng., Puerto Rico Univ., Mayaguez, Puerto Rico
fDate :
27 Jul-1 Aug 1997
Abstract :
The low temperature performance of a 50 kHz, 48±10 V/12 V, 60 W three-level pulse-width modulated (PWM) buck power converter is reported. The converter was designed with standard commercially available components for operation from room temperature down to the liquid nitrogen temperature (-196°C). The measured efficiency was 89.12% at room temperature outside the chamber, and dropped to 87.27% at -195°C. Even at -195°C the converter was fully functional. The three-level converters, and in general multi-level converters, offer an attractive topology for high voltage applications
Keywords :
DC-DC power convertors; PWM power convertors; cryogenic electronics; power semiconductor switches; -195 C; 12 V; 38 to 58 V; 50 kHz; 60 W; 87.27 percent; 89.12 percent; high voltage applications; liquid nitrogen temperature; low-temperature performance; multi-level converters; room temperature; three-level buck PWM DC-DC power converter; three-level power converters; Application software; Buck converters; Capacitors; DC-DC power converters; Pulse width modulation; Pulse width modulation converters; Switches; Switching converters; Temperature; Voltage;
Conference_Titel :
Energy Conversion Engineering Conference, 1997. IECEC-97., Proceedings of the 32nd Intersociety
Conference_Location :
Honolulu, HI
Print_ISBN :
0-7803-4515-0
DOI :
10.1109/IECEC.1997.661977
