Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Including superconductivity
Patent
1991-02-27
1993-08-31
Gaffin, Jeffrey A.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Including superconductivity
307245, 307306, 323360, 336DIG1, 361 19, 361 58, H03K 338, H03K 1792, H01F 3600
Patent
active
052414477
ABSTRACT:
An electrical switch structure which employs superconductive material. A magnetizable core is encompassed by a body of superconductive material. The body of superconductive material has a superconductive state and a normal resistive state and can be placed in either state. The magnetizable core is also encompassed by at least one electrically conductive winding through which electrical current flows to create a magnetic flux within the magnetizable core. When the body of superconductive material is in its superconductive state current is induced therein by the magnetic flux in the magnetizable core. Current flow in the body of superconductive creates a magnetic flux in the magnetizable core which cancels the magnetic flux which is created by current flow in the electrically conductive winding. Thus, the state of the body of superconductive material determines the magnetic flux conditions in the magnetizable core, and thus current flow in a winding which encompasses the magnetizable core is controlled by controlling the state of the body of superconductive material.
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Barber John P.
Clements Neal D.
Spyker Russell L.
Elms Richard T.
Gaffin Jeffrey A.
Kundert Thomas L.
Singer Donald J.
The United States of America as represented by the Secretary of
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