Method for Detecting Removal of a Battery from a Battery Charger
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United States of America Patent
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Issued Date -
Oct 23, 2008
app pub date -
Apr 17, 2007
filing date -
Apr 17, 2007
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method for detecting removal of a battery from a battery charger includes 1) incrementing an event counter and resetting an interval counter each time the voltage present at the output node exceeds a predetermined voltage; 2) resetting the event counter each time the interval counter exceeds a predetermined maximum time between events; and 3) asserting a signal indicating the absence of a battery connected between the positive and negative output nodes each time event counter exceeds a predetermined number of events.
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