Gazelle Semiconductor, Inc.

David Christian Gerard Tournatory

Nicolas Stephane Monier

Kevin Kennedy Johnstone

The present disclosure includes circuits and methods for controlling the operation of a switching regulator. Closing and opening high side and low side switches may be controlled so that an inductor current may be used to charge and/or discharge an intermediate switching node when both switches are open. In one embodiment, delays between a low-to-high transition and a high-to-low transition of an AC stage may be cycled over multiple periods of a DC stage.

Circuits and methods for operating a switching regulator

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.

Switching regulator circuits and methods

A switching regulator circuit can include multiple switching regulator stages coupled to an output. A first switching regulator stage may be operated at a different frequency than a second switching regulator stage. In some cases, one switching regulator stage is operated at a different duty cycle. The switching regulator circuit may also include multiple switching regulator stages that cancel ripple at an output node.

The present disclosure includes switching regulator circuits and methods. In one embodiment, cross coupled circuits are provided. In one embodiment, a first switching regulator stage has an output coupled to a first node, and a second switching regulator stage has an output coupled to a second node. The first switching regulator stage includes a feedback input coupled to the second node, and the second switching regulator stage includes a feedback input coupled to the first node. The first and second nodes may be coupled together through a capacitor.

Circuits and methods for providing current to a load

The present disclosure includes circuits and methods for controlling the operation of a switching regulator. In one embodiment, the present disclosure includes a circuit comprising a switching regulator with a current control loop comprising a capacitor configured to store a first voltage during a first phase and configured to boost a voltage produced by an output current through a low side switching device by the first voltage in a second phase. Circuitry compares the boosted voltage to a control voltage produced by a control current through a replica device corresponding to the low side switching device.

Switching regulator current mode feedback circuits and methods

Embodiments of the disclosure include high slew rate switching regulator circuits and methods. In one embodiment, switching regulators are coupled to an output node. A first switching regulator may drive the output node. A second switching regulator may drive the output node through a capacitor. Control circuitry may include feedback inputs to maintain a first voltage on the output of the first switching regulator on one terminal of the capacitor and further to maintain a second voltage on the output of the second switching regulator on the other terminal of the capacitor.

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Redwood City, CA, United States of America

David Christian Gerard Tournatory