Power detecting circuit with fast power removing detection, electronic device and method thereof
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United States of America Patent
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Issued Date -
Feb 7, 2013
app pub date -
Aug 3, 2011
filing date -
Aug 3, 2011
priority date (Note) -
Abandoned
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Abstract
A power detecting circuit with fast power removing detection is disclosed. The power detecting circuit comprises an isolating device, coupled between an external power source and an internal power source, for isolating the external power source, and the internal power source, and a comparator, coupled to the external power source, for determining if the external power source is removed, and accordingly generating a removing signal.
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