Patents by Inventor Aaron J. BRENNAN

Aaron J. BRENNAN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10284090
    Abstract: In accordance with embodiments of the present disclosure, a system may include a series combination of a boost converter and a power converter coupled together in series, such that the series combination boosts an input voltage to the series combination to an output voltage greater than the input voltage such that a voltage boost provided by the series combination is greater than a voltage boost provided by the boost converter alone. The system may also include an amplifier, wherein an input of the amplifier is coupled to an output of the series combination of the boost converter and the power converter.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: May 7, 2019
    Assignee: Cirrus Logic, Inc.
    Inventors: Firas Azrai, Eric J. King, Aaron J. Brennan
  • Patent number: 10114392
    Abstract: A method of increasing a multiplication ratio of a charge pump, the multiplication ratio defining a relationship between an output voltage of the charge pump and an input voltage of the charge pump, comprising: analyzing a first efficiency of the charge pump when the multiplication ratio is at a first ratio, calculating a second efficiency of the charge pump when the multiplication ratio is a second ratio lesser than the first ratio, and based on the first efficiency and the second efficiency, determining at least one of a target output power and a target output voltage at which to change the multiplication ratio from the second ratio to the first ratio.
    Type: Grant
    Filed: November 1, 2017
    Date of Patent: October 30, 2018
    Assignee: Cirrus Logic, Inc.
    Inventors: Eric J. King, Christian Larsen, Aaron J. Brennan
  • Publication number: 20180120884
    Abstract: A method of increasing a multiplication ratio of a charge pump, the multiplication ratio defining a relationship between an output voltage of the charge pump and an input voltage of the charge pump, comprising: analyzing a first efficiency of the charge pump when the multiplication ratio is at a first ratio, calculating a second efficiency of the charge pump when the multiplication ratio is a second ratio lesser than the first ratio, and based on the first efficiency and the second efficiency, determining at least one of a target output power and a target output voltage at which to change the multiplication ratio from the second ratio to the first ratio.
    Type: Application
    Filed: November 1, 2017
    Publication date: May 3, 2018
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Eric J. KING, Christian LARSEN, Aaron J. BRENNAN
  • Publication number: 20180115246
    Abstract: In accordance with embodiments of the present disclosure, a system may include a series combination of a boost converter and a power converter coupled together in series, such that the series combination boosts an input voltage to the series combination to an output voltage greater than the input voltage such that a voltage boost provided by the series combination is greater than a voltage boost provided by the boost converter alone. The system may also include an amplifier, wherein an input of the amplifier is coupled to an output of the series combination of the boost converter and the power converter.
    Type: Application
    Filed: July 14, 2017
    Publication date: April 26, 2018
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Firas AZRAI, Eric J. KING, Aaron J. BRENNAN
  • Publication number: 20180109181
    Abstract: A system may include a charge pump configured to operate in a plurality of modes including a first mode in which the ratio of an output voltage to an input voltage of the charge pump is a first ratio and a second mode in which the ratio is a second ratio and a controller configured to limit current flowing between a power source of the charge pump to the charge pump, wherein the power source provides the input voltage, by limiting a transfer of charge between the power source and the charge pump during a switching cycle of the charge pump responsive to a change in operation between modes of the plurality of modes.
    Type: Application
    Filed: October 13, 2017
    Publication date: April 19, 2018
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Eric J. KING, Aaron J. BRENNAN, Christian LARSEN, John L. MELANSON, Yongjie CHENG, Adrian COLLI-MENCHI
  • Patent number: 9723578
    Abstract: In accordance with embodiments of the present disclosure, a method for identifying a location of an integrated circuit that is sensitive to RTS noise may include applying localized heat to a scan area of the integrated circuit, observing any change in one or more electrical parameters of the integrated circuit in response to the localized heat being applied to the scan area indicative of sensitivity to RTS noise, and identifying the location sensitive to RTS noise responsive to observing change in one or more electrical parameters of the integrated circuit indicative of sensitivity to RTS noise in response to the localized heat being applied to the scan area.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: August 1, 2017
    Assignee: Cirrus Logic, Inc.
    Inventors: John L. Melanson, Aaron J. Brennan, Justin Dougherty, Ramya Balasundaram
  • Publication number: 20160366656
    Abstract: In accordance with embodiments of the present disclosure, a method for identifying a location of an integrated circuit that is sensitive to RTS noise may include applying localized heat to a scan area of the integrated circuit, observing any change in one or more electrical parameters of the integrated circuit in response to the localized heat being applied to the scan area indicative of sensitivity to RTS noise, and identifying the location sensitive to RTS noise responsive to observing change in one or more electrical parameters of the integrated circuit indicative of sensitivity to RTS noise in response to the localized heat being applied to the scan area.
    Type: Application
    Filed: June 7, 2016
    Publication date: December 15, 2016
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: John L. MELANSON, Aaron J. BRENNAN, Justin DOUGHERTY, Ramya BALASUNDARAM