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US 12,749,978 B2Granted
Power stage controller
AssigneeRenesas Electronics Corporation
InventorsAdam Matthew Bumgarner, Benoit Labbe
Life of this patent
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Abstract
A controller for controlling a power stage having a plurality of phases is presented. The controller generates a control signal; sends the control signal to the plurality of phases via a first link; receives from each phase a feedback signal via a second link; sums the plurality of feedback signals and derives an average current per phase.
Claims18
A controller for controlling a power stage having a plurality of phases, the controller being configured to:
- generate a control signal;
- send the control signal to the plurality of phases via a first link;
- receive from each phase a feedback signal via a second link;
- sum feedback signals received from each phase at a resistance circuit having a plurality of resistances coupled in parallel, each resistance being connected to ground via a corresponding switch;
- and
- derive an average current per phase.
3 more elements
A method of controlling a power stage having a plurality of phases, the method comprising:
- generating a control signal comprising a series of pulses;
- sending the control signal to the plurality of phases via a first link;
- for each phase decoding the control signal and activating or de-activating the phase based on the control signal;
- receiving via a second link a feedback signal from each phase;
- summing feedback signals received from each phase at a resistance circuit having a plurality of resistances coupled in parallel, each resistance being connected to ground via a corresponding switch;
- and
- deriving an average current per phase.
4 more elements
Dependencies are inferred from the claim text.