Current sensor based closed loop control apparatus
AssigneeIntel Corporation
InventorsAlexander Gendler, Kosta Luria, Arye Albahari, Ohad Nachshon
Life of this patent
Estimating the term…
Abstract
A method and apparatus for performing current control for an integrated circuit are described. In one embodiment the apparatus comprises core logic coupled to receive a first current; a clock generator to generate a first clock signal; and a closed loop current controller coupled to the clock generator and coupled to provide a second clock signal to the core logic based on the first clock signal, the current controller to control an amount of the first current received by the core logic by changing the first clock signal to generate the second clock signal.
Claims15
An apparatus comprising:
- a power control unit (PCU);
- and
- a plurality of cores coupled to the PCU, each core of the plurality of cores comprising
- one or more current sensors, and
- a controller coupled to the one or more current sensors to compare a sensed current with a target current from the PCU, and
- wherein the PCU is configured to adjust the target current based on an amount of throttling being performed by the plurality of cores.
A method comprising:
- measuring current in a plurality of cores, using current sensors, coupled to a power control unit (PCU), the current sensors being in the plurality of cores, where each core of the plurality of cores comprises one or more current sensors;
- comparing a sensed current with a target current from the PCU;
- and
- adjusting the target current based on an amount of throttling being performed by the plurality of cores.
An article of manufacture having one or more non-transitory computer readable storage media storing instructions which when executed by a system to perform a method comprising:
- measuring current in a plurality of cores, using current sensors, coupled to a power control unit (PCU), the current sensors being in the plurality of cores, where each core of the plurality of cores comprises one or more current sensors;
- comparing a sensed current with a target current from the PCU;
- and
- adjusting the target current based on an amount of throttling being performed by the plurality of cores.
Dependencies are inferred from the claim text.