Switching regulator circuits and methods
AssigneeGazelle Semiconductor, Inc.
InventorsDavid Christian Gerard Tournatory, Kevin Kennedy Johnstone
Life of this patent
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Abstract
The present disclosure includes switching regulator circuits and methods. In one embodiment, a first switching regulator stage receives a first input voltage and produces a first voltage on a first node. A second switching regulator stage receives the first input voltage and produces a second voltage on a second node. A capacitor includes a first terminal coupled to the first node and a second terminal coupled to the second node, and the first switching regulator stage and the second switching regulator stage are configured to set a first voltage on the first node and to set a second voltage on the second node.
Claims45
An electronic circuit comprising:
- a first switching regulator stage to receive a first input voltage and produce a first voltage on a first node;
- a second switching regulator stage to receive the first input voltage and produce a second voltage on a second node;
- and
- a capacitor comprising a first terminal coupled to the first node and a second terminal coupled to the second node;
- wherein the first switching regulator stage and the second switching regulator stage are configured to regulate the first voltage on the first node and to regulate the second voltage on the second node.
A method comprising:
- coupling a first input voltage through a first switching regulator stage to produce a first voltage on a first node;
- coupling the first input voltage through a second switching regulator stage to produce a second voltage on a second node, wherein the first node is coupled to the second node by a capacitor;
- and
- regulating the first voltage on the first node and the second voltage on the second node.
A circuit comprising:
- a first switch having a first input terminal and a second terminal coupled to a first switching node;
- a second switch having a first terminal coupled to the first switching node and a second terminal;
- a first inductor having a first terminal coupled to the first switching node and a second terminal coupled to a first output node;
- a third switch having a first input terminal and a second terminal coupled to a second switching node;
- a fourth switch having a first terminal coupled to the second switching node and a second terminal;
- a second inductor having a first terminal coupled to the second switching node and a second terminal coupled to a second output node;
- a capacitor having a first terminal coupled to the first output node and a second terminal coupled to the second output node;
- and
- a control circuit comprising a first input coupled to the first output node, a second input coupled to the second output node, wherein the control circuit controls the first switch and the second switch to produce a regulated first voltage on the first output node, and wherein the control circuit controls the third switch and the fourth switch to produce a regulated second voltage on the second output node.
Dependencies are inferred from the claim text.