ENERGY EFFICIENT AND FAST CHARGE MODES OF A RECHARGEABLE BATTERY
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United States of America Patent
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Issued Date -
Nov 18, 2010
app pub date -
May 17, 2010
filing date -
May 18, 2009
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Abandoned
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Abstract
A method of providing power to an electronic device in an energy-efficient manner includes transitioning between power states corresponding to charging and discharging a battery. The state of charge of the battery is detected. Upon detecting a high threshold state of charge, an external power source such as an AC-to-DC adapter is disabled, and the battery to provides primary power to the electronic device. Upon a low threshold state of charge, the AC-to-DC adapter is controlled to provide a high current output to charge the battery and provide primary power to the electronic device. The power states, when cycled over time based on the state of the battery, provide for an energy-efficient method of powering the electronic device.
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