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US 8,618,788 B2Granted
Dynamically adjusted multi-phase regulator
OwnerMalay Trivedi, Erik A. McShane +1inventors
InventorsMalay Trivedi, Erik A. McShane, James T. Doyle
Life of this patent
Estimating the term…
Abstract
In some embodiments, a multi-phase converter with dynamic phase adjustment is provided. In some embodiments, a controller may include circuitry to control how many phase legs are active based on output current and also which phase legs are to be enabled.
Claims23
An integrated circuit comprising:
- a plurality or phase legs to supply load current to a load, wherein each or the plurality of phase legs is operable to be enabled or disabled;
- and
- a controller, coupled to the plurality of phase legs to monitor the load current to enable a number of the phase legs of the plurality of phase legs according to the monitored load current, wherein the controller comprises:
- one or more comparators to generate corresponding one or more phase signals for the plurality of phase legs;
- and
- one or more summing circuits to generate one or more summed signals to the one or more comparators to control drivers to reduce current in an associated phase leg in response to an increasing sum of a load voltage and sensed current in the phase leg.
3 more elements
A computer system comprising:
- a processor;
- a voltage regulator having:
- a plurality of phase legs to supply load current to the processor, wherein each of the phase legs of the plurality of phase legs is operable to be enabled or disabled;
- and
- a controller, coupled to the plurality of phase legs, to monitor load current to enable a number of the phase legs of the plurality of phase legs according to the monitored load current wherein the controller comprises:
- one or more comparators to generate corresponding one or more phase signals for the plurality of phase legs;
- and
- one or more summing circuits to generate one or more summed signals to the one or more comparators to control drivers to reduce current in an associated phase leg in response to an increasing sum of a load voltage and sensed current in the phase leg;
- and
- an antenna coupled to the processor to communicatively link it with a wireless network.
7 more elements
Dependencies are inferred from the claim text.