Shared protection scheme for multiple variable batteries
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United States of America Patent
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Apr 22, 2014
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N/A
app pub date -
Sep 20, 2010
filing date -
Sep 20, 2010
priority date (Note) -
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Abstract
A device includes a plurality of subscriber line interface circuits and a shared protection device. Each subscriber line interface circuit has a voltage input terminal and first and second interface line terminals. The shared protection device is coupled to the interface line terminals and operable to sense a negative reference voltage representing a most negative one of the voltages present on the voltage input terminals and to provide overvoltage protection responsive to a voltage on at least one of the interface line terminals exceeding the negative reference voltage.
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