Patents Assigned to Gazelle Semiconductor, Inc.
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Patent number: 9866104Abstract: 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.Type: GrantFiled: June 26, 2014Date of Patent: January 9, 2018Assignee: Gazelle Semiconductor, Inc.Inventors: Nicolas Stephane Monier, David Christian Gerard Tournatory
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Patent number: 9735574Abstract: 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.Type: GrantFiled: December 30, 2013Date of Patent: August 15, 2017Assignee: Gazelle Semiconductor, Inc.Inventors: David Christian Gerard Tournatory, Kevin Kennedy Johnstone
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Patent number: 9577532Abstract: 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.Type: GrantFiled: June 26, 2014Date of Patent: February 21, 2017Assignee: Gazelle Semiconductor, Inc.Inventors: David Christian Gerard Tournatory, Nicolas Stephane Monier
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Patent number: 9547322Abstract: A voltage regulator circuit and a method to control the voltage regulator circuit. The voltage regulator circuit comprising an AC switching regulator, a DC switching regulator, a linear voltage regulator and switches to configure the voltage regulator circuit for improved efficiency across a wide load range.Type: GrantFiled: November 12, 2015Date of Patent: January 17, 2017Assignee: Gazelle Semiconductor, Inc.Inventors: David Tournatory, Nicolas Monier
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Patent number: 9444340Abstract: 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.Type: GrantFiled: June 26, 2014Date of Patent: September 13, 2016Assignee: Gazelle Semiconductor, Inc.Inventor: David Christian Gerard Tournatory
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Patent number: 9397559Abstract: 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.Type: GrantFiled: June 26, 2014Date of Patent: July 19, 2016Assignee: Gazelle Semiconductor, Inc.Inventor: David Christian Gerard Tournatory
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Patent number: 9086708Abstract: 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.Type: GrantFiled: March 11, 2013Date of Patent: July 21, 2015Assignee: Gazelle Semiconductor Inc.Inventors: David Christian Gerard Tournatory, Kevin Kennedy Johnstone
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Publication number: 20140210266Abstract: 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.Type: ApplicationFiled: December 30, 2013Publication date: July 31, 2014Applicant: GAZELLE SEMICONDUCTOR, INC.Inventors: David Christian Gerard Tournatory, Kevin Kennedy Johnstone
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Publication number: 20140184177Abstract: Apparatus having corresponding methods comprise: a first switching regulator coupled to an output node; a second switching regulator coupled to the output node through a capacitor, wherein the capacitor comprises a first terminal coupled to the output node, and a second terminal coupled to the second switching regulator; and a master controller configured to control a voltage on the output node, wherein the master controller comprises a first feedback input coupled to the first terminal of the capacitor, and a second feedback input coupled to the second terminal of the capacitor; wherein the master controller is further configured to control a voltage on the second terminal of the capacitor.Type: ApplicationFiled: March 11, 2013Publication date: July 3, 2014Applicant: Gazelle Semiconductor, Inc.Inventors: David Christian Gerard Tournatory, Kevin Kennedy Johnstone