Cryogenic power control

摘要

An apparatus 2 comprising a cryogenic chamber 4 and a galvanic input interface 6 to the cryogenic chamber 4 configured to receive a lower amplitude electric current 8. A converter 10 is located within the cryogenic chamber 4 and configured to convert the lower amplitude electric current 8, provided by the galvanic input interface 6, to a higher amplitude electric current 12 for supply to a load 14 within the cryogenic chamber 4. A controller 16 is configured to control the converter 10 and to detect the onset of quench by comparing the duration of the charge/discharge cycle of the convertor with a stored value. The controller 16 may also compare an instantaneous value of load current with a stored value of load current.

主权项

1. An apparatus comprising:
a cryogenic chamber; a device for storing electric charge located within the chamber, the device being connected to an interface on the exterior of the chamber and to a load within the chamber, wherein the device operates according to predetermined charge and discharge cycles such that energy is stored and subsequently transferred to the load in a successive manner in use; and, a controller configured to monitor the charge and/or discharge cycle of the device in order to determine the onset of an adverse operating condition within the chamber.