Adaptive voltage input to a charge pump
AssigneeIntel Corporation
InventorsKuljit Bains, George Vergis
Life of this patent
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Abstract
A memory subsystem includes an adaptive output voltage to provide a voltage based on a power profile of a memory device of the memory subsystem. A charge pump increases the voltage to a level needed to write data to the memory device. The voltage provided is based on the power profile of the memory device, which indicates a voltage level that provides good efficiency for the charge pump, and is within maximum levels for the memory device. The voltage can be higher than a nominal voltage indicated for the memory device in a specification.
Claims21
A memory subsystem comprising:
- a memory device to store data, the memory device to receive an input voltage at a first voltage level, wherein writing data to the memory device uses a second voltage level higher than the first voltage level;
- a charge pump to increase the input voltage from the first voltage level to the second voltage level;
- and
- an adaptive voltage supply to provide the first voltage level based on a power profile of the memory device, the power profile indicating a maximum input voltage level for the memory device.
An electronic device comprising:
- a memory subsystem having
- a memory device to store data, the memory device to receive an input voltage at a first voltage level, wherein writing data to the memory device uses a second voltage level higher than the first voltage level;
- a charge pump to increase the input voltage from the first voltage level to the second voltage level;
- and
- an adaptive voltage supply to provide the first voltage level based on a power profile of the memory device, the power profile indicating a maximum input voltage level for the memory device;
- and
- a multicore processor coupled to the memory subsystem to access the memory subsystem during execution of the processor.
A method comprising:
- receiving an input voltage at a voltage regulator;
- determining a power profile of a memory device coupled to the voltage regulator;
- adjusting an output voltage of the voltage regulator based on the power profile;
- and
- providing the adjusted output voltage to a charge pump of the memory device, wherein the charge pump is to increase the output voltage to a stepped-up voltage level used for writing data to the memory device.
Dependencies are inferred from the claim text.