Refrigeration – Storage of solidified or liquified gas – Including cryostat
Patent
1996-08-16
2000-02-15
Capossela, Ronald C.
Refrigeration
Storage of solidified or liquified gas
Including cryostat
622592, 62376, 62434, F25B 1900
Patent
active
060239344
ABSTRACT:
Methods and apparatus for cooling systems for cryogenic power conversion electronics are provided. The invention includes systems having electronic power conversion apparatus comprising at least one cryogenically operated semiconductor switch and at least one cryogenically operated capacitor and cooling means for cryogenically cooling the at least one cryogenically operated semiconductor switch and the at least one cryogenically operated capacitor to a temperature between 90K to 236K. The systems can also include input/output means for supplying power to said power conversion apparatus and receiving power from said power conversion apparatus. In alternative embodiments, liquid cryogens can be used in heat exchange systems in conjunction with refrigeration cold heads or heat pipes. In these embodiments, the cryogen can be recondensed if boiled.
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American Superconductor Corp.
Capossela Ronald C.
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