POWER-MINIMIZING VOLTAGE RAIL SELECTION IN A PORTABLE COMPUTING DEVICE
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United States of America Patent
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Issued Date -
May 18, 2017
app pub date -
Nov 12, 2015
filing date -
Nov 12, 2015
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Abstract
Components of a portable computing device produce power supply voltage requests indicating requested power levels. In response to the power supply voltage requests, power multiplexers associated with the components select and couple corresponding voltage rails associated with two or more fixed-voltage power supplies to the requesting components. Power supplies may be activated and deactivated on an as-requested basis.
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