Electrical resistors – Resistance value responsive to a condition – Current and/or voltage
Patent
1998-05-20
2000-09-26
Easthom, Karl D.
Electrical resistors
Resistance value responsive to a condition
Current and/or voltage
338 20, 252510, H01L 710
Patent
active
061247804
ABSTRACT:
A current limiting device comprises at least two electrodes; an electrically conductive composite material between the electrodes; interfaces between the electrodes the said composite material; and an inhomogeneous resistance distribution structure at the interfaces. During a high current event, adiabatic resistive heating at the interfaces causes rapid thermal expansion and vaporization and at least a partial physical separation at the interfaces; so the resistance of the current limiting device increases. The composite material comprises at least one polymeric matrix material and at least one electrically conductive material, and the polymeric matrix material comprises at least one epoxy and at least one silicone.
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Aftergut Siegfried
Duggal Anil Raj
Lewis Larry Neil
Nye David Alan
Cusick Ernest G.
Easthom Karl D.
General Electric Company
Johnson Noreen C.
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