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US 2015/0028832 A1Published application
Switching regulator circuits and methods
AssigneeGazelle Semiconductor, Inc.
InventorsDavid Christian Gerard Tournatory, Nicolas Stephane Monier
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Abstract
The present disclosure includes switching regulator circuits and methods. In one embodiment, multiple switching regulator stages are coupled to an output. A first switching regulator stage is operated at a different frequency than a second switching regulator stage. In another embodiment, one switching regulator stage is operated at a different duty cycle. Embodiments of the present disclosure may include multiple switching regulator stages that cancel ripple at an output node.
Claims37
A circuit comprising:
- a first switching regulator stage comprising a first plurality of switches and an inductor;
- a second switching regulator stage comprising a second plurality of switches and an inductor;
- an output node coupled to an output of the first switching regulator stage and an output of the second switching regulator stage,
- wherein the first switching regulator stage operates at a different frequency than the second switching regulator stage.
1 more element
A method comprising:
- operating a first switching regulator stage at a first switching frequency, the first switching regulator stage comprising a first plurality of switches and an inductor;
- and
- operating a second switching regulator stage at a second switching frequency, a second switching regulator stage comprising a second plurality of switches and an inductor,
- wherein an output of the first switching regulator stage and an output of the second switching regulator stage are coupled to an output node, and
- wherein the first switching frequency is different than the second switching frequency.
2 more elements
Dependencies are inferred from the claim text.