CURRENT LIMITING CIRCUIT FOR ELECTRICAL DEVICES
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United States of America Patent
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Issued Date -
Jan 16, 2014
app pub date -
Jul 10, 2013
filing date -
Jul 10, 2012
priority date (Note) -
Abandoned
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Abstract
A current limiting circuit for use with an electrical device may include a test load and a test load switch operable for varying an electrical current flowing through the test load. A detector may be electrically connected to the test load for detecting variations in an electrical characteristic of the test load and generating a detector output signal indicative of the electrical characteristic. A detection threshold signal source may be provided for producing a detection threshold signal. A comparator may be electrically connected to the detector and the threshold signal source, the comparator operable for generating a load switch control signal based at least in part on the detector output signal and the detection threshold signal. A load switch may be electrically connected to the comparator and operable for adjusting a current flow through a main load in response to the load switch control signal.
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