Device and method for detecting battery voltage level
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United States of America Patent
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Issued Date -
Apr 24, 2008
app pub date -
Oct 20, 2006
filing date -
Oct 20, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device and an associated method for detecting a voltage level of a battery are disclosed. The device employs an analog-to-digital converter or digital-to-analog converter to accurately detecting the voltage level. In one embodiment, the device includes a digital-to-analog converter, a comparison circuit, and a microprocessor. The digital-to-analog circuit outputs a plurality of reference levels according to a setting signal. The comparison circuit is for comparing the output voltage of the battery with the reference levels and outputting a comparison signal. The microprocessor then determines the voltage level of the battery according to the comparison signal.
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