BRANCH CIRCUIT PROTECTION WITH IN-LINE SOLID STATE DEVICE
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United States of America Patent
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Issued Date -
Mar 1, 2012
app pub date -
Aug 26, 2011
filing date -
Aug 31, 2010
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method of protecting against overcurrent conditions controls a solid state switch to turn OFF to prevent a flow of current along a first current path in response to an overcurrent condition exceeding a predefined current threshold, or a predefined current threshold and a predefined energy threshold. Current is selectively passed along a second current path that is parallel to the first current path in response to the solid state switch turning OFF. An overcurrent detection device that is upstream of the first current path and the second current path is used to detect at least partially via the second current path whether the overcurrent condition corresponds to a predefined fault condition downstream of the current paths.
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