Current limiting device
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 28, 2000
Grant Date -
N/A
app pub date -
Oct 30, 1996
filing date -
Mar 24, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A current limiting device having an electrical superconductor for attachment in an electrical circuit, the superconductor being made of material having a critical current density which varies with applied magnetic field. A magnetic field generator generates a magnetic field to which the superconductor is exposed. Under normal working conditions a magnetic field applied causes the critical current density to be less than a maximum critical current density. A controller adjusts the critical current density such that after a current carried by the superconductor exceeds the critical current density so that the superconductor transforms to a resistive state, the controller can be activated to increase the critical current density causing the superconductor to return the superconducting condition without terminating the flow of current through the superconductor.
First Claim
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Cited Art Landscape
Patent Citation Ranking
- 9 Citation Count
- H01L Class
- 1.34 % this patent is cited more than
- 25 Age