Method and apparatus for allowing a battery to preserve charge in a handheld device without an supplying unregulated voltage to selected internal components
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Mar 16, 2004
Grant Date -
N/A
app pub date -
May 31, 2000
filing date -
May 31, 2000
priority date (Note) -
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status (Latency Note)
Importance
Abstract
A handheld computer comprises a rechargeable battery module that outputs a source voltage to power one or more components of the handheld computer. The handheld computer includes a power monitoring module that receives the source voltage and outputs a rail voltage. The power monitoring module outputs the rail voltage to correspond to a fractional duty cycle of the source voltage when the source voltage is greater than a designated voltage. The power monitoring module outputs the rail voltage to correspond to a full duty cycle of the source voltage when the source voltage is less than the designated voltage. The handheld computer includes a power rail coupled to the power monitoring module. The power rail receives the rail voltage so as to extend power from the battery module to the one or more components of the handheld computer.
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