Patent ID: 9647453
Date: 2017-05-09
CPC Classifications: G11C,H02J

Claim:
1. An apparatus comprising: a first power supply configured to generate a first power signal having one of a plurality of voltages based upon a selected power state; a second power supply configured to simultaneously generate a second power signal that includes a second voltage higher than a first voltage of the first power signal, and a third power signal that includes a third voltage that is higher than the first voltage of the first power signal and less than the second voltage of the second power signal; a first electrical circuit configured to be powered by the first power signal; a second electrical circuit configured to be powered by either the first power signal, the second power signal, or the third power signal; a power mode controller configured to: a power supply selector configured to dynamically electrically couple the second electrical circuit with either the first power signal, the second power signal, or the third power signal, based at least in part upon the selector control signal; wherein the power supply selector is configured to: dynamically electrically couple the second electrical circuit with the first power supply if a difference between the voltage of the first power signal and the voltage of the second power signal becomes lower than a threshold amount, and dynamically electrically couple the second electrical circuit with the second power supply if the difference between the voltage of the first power signal and the voltage of the second power signal, becomes greater than the threshold amount.