Patents by Inventor Don R. Dignam

Don R. Dignam 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).

  • Point of load regulator synchronization and phase offset
    Patent number: 10170979
    Abstract: An electronic system includes a multiple POL regulators that supply a regulated voltage to a component within the electronic system. A phase spreading scheme may be implemented so that the POL regulators operate under various phases to reduce voltage noise, high input capacitance, and high radiated emissions. One phase spreading scheme includes a single POL regulator controlling phase spreading so that the other POL regulators operate under different phases. Another phase spreading scheme includes an upstream POL regulator determining a phase offset that may be passed to a downstream POL regulator so that the downstream POL regulator may operate under a different phase relative to the upstream POL regulator.
    Type: Grant
    Filed: January 3, 2017
    Date of Patent: January 1, 2019
    Assignee: International Business Machines Corporation
    Inventors: Anthony E. Baker, Don R. Dignam, Harvey Hum, Jian Meng
  • POINT OF LOAD REGULATOR SYNCHRONIZATION AND PHASE OFFSET
    Publication number: 20170117800
    Abstract: An electronic system includes a multiple POL regulators that supply a regulated voltage to a component within the electronic system. A phase spreading scheme may be implemented so that the POL regulators operate under various phases to reduce voltage noise, high input capacitance, and high radiated emissions. One phase spreading scheme includes a single POL regulator controlling phase spreading so that the other POL regulators operate under different phases. Another phase spreading scheme includes an upstream POL regulator determining a phase offset that may be passed to a downstream POL regulator so that the downstream POL regulator may operate under a different phase relative to the upstream POL regulator.
    Type: Application
    Filed: January 3, 2017
    Publication date: April 27, 2017
    Inventors: Anthony E. Baker, Don R. Dignam, Harvey Hum, Jian Meng
  • Point of load regulator synchronization and phase offset
    Patent number: 9570983
    Abstract: An electronic system includes a multiple POL regulators that supply a regulated voltage to a component within the electronic system. A phase spreading scheme may be implemented so that the POL regulators operate under various phases to reduce voltage noise, high input capacitance, and high radiated emissions. One phase spreading scheme includes a single POL regulator controlling phase spreading so that the other POL regulators operate under different phases. Another phase spreading scheme includes an upstream POL regulator determining a phase offset that may be passed to a downstream POL regulator so that the downstream POL regulator may operate under a different phase relative to the upstream POL regulator.
    Type: Grant
    Filed: April 22, 2014
    Date of Patent: February 14, 2017
    Assignee: International Business Machines Corporation
    Inventors: Anthony E. Baker, Don R. Dignam, Harvey Hum, Jian Meng
  • POINT OF LOAD REGULATOR SYNCHRONIZATION AND PHASE OFFSET
    Publication number: 20150303793
    Abstract: An electronic system includes a multiple POL regulators that supply a regulated voltage to a component within the electronic system. A phase spreading scheme may be implemented so that the POL regulators operate under various phases to reduce voltage noise, high input capacitance, and high radiated emissions. One phase spreading scheme includes a single POL regulator controlling phase spreading so that the other POL regulators operate under different phases. Another phase spreading scheme includes an upstream POL regulator determining a phase offset that may be passed to a downstream POL regulator so that the downstream POL regulator may operate under a different phase relative to the upstream POL regulator.
    Type: Application
    Filed: April 22, 2014
    Publication date: October 22, 2015
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Anthony E. Baker, Don R. Dignam, Harvey Hum, Jian Meng