Patents by Inventor Peter Thomas Hardman

Peter Thomas Hardman 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).

  • ASYMMETRIC TOPOLOGY TO BOOST LOW LOAD EFFICIENCY IN MULTI-PHASE SWITCH-MODE POWER CONVERSION
    Publication number: 20140217997
    Abstract: Techniques for performing DC to DC power conversion in switch-mode converter circuits include combinations of dynamic switch shedding, phase shedding, symmetric phase circuit topologies, and asymmetric phase circuit topologies. In at least one embodiment of the invention, a method of operating a power converter circuit includes operating a first phase switch circuit portion using a first number of switch devices when the power converter circuit is configured in a first mode of operation. The first number is greater than zero. The method includes operating the first phase switch circuit portion using the first number of switch devices when the power converter circuit is configured in a second mode of operation. The method includes operating a second phase switch circuit portion using a second number of switch devices when the power converter circuit is configured in the second mode of operation. The second number is greater than the first number.
    Type: Application
    Filed: April 10, 2014
    Publication date: August 7, 2014
    Applicants: Advanced Micro Devices, Inc., ATI TECHNOLOGIES ULC
    Inventors: Peter Thomas Hardman, Erwin Pang, Sanjiv K. Lakhanpal
  • Asymmetric topology to boost low load efficiency in multi-phase switch-mode power conversion
    Patent number: 7948222
    Abstract: Techniques for performing DC to DC power conversion in switch-mode converter circuits include combinations of dynamic switch shedding, phase shedding, symmetric phase circuit topologies, and asymmetric phase circuit topologies. In at least one embodiment of the invention, a method of operating a power converter circuit includes operating a first phase switch circuit portion using a first number of switch devices when the power converter circuit is configured in a first mode of operation. The first number is greater than zero. The method includes operating the first phase switch circuit portion using the first number of switch devices when the power converter circuit is configured in a second mode of operation. The method includes operating a second phase switch circuit portion using a second number of switch devices when the power converter circuit is configured in the second mode of operation. The second number is greater than the first number.
    Type: Grant
    Filed: February 5, 2009
    Date of Patent: May 24, 2011
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Peter Thomas Hardman, Erwin Pang, Sanjiv K. Lakhanpal
  • ASYMMETRIC TOPOLOGY TO BOOST LOW LOAD EFFICIENCY IN MULTI-PHASE SWITCH-MODE POWER CONVERSION
    Publication number: 20100194361
    Abstract: Techniques for performing DC to DC power conversion in switch-mode converter circuits include combinations of dynamic switch shedding, phase shedding, symmetric phase circuit topologies, and asymmetric phase circuit topologies. In at least one embodiment of the invention, a method of operating a power converter circuit includes operating a first phase switch circuit portion using a first number of switch devices when the power converter circuit is configured in a first mode of operation. The first number is greater than zero. The method includes operating the first phase switch circuit portion using the first number of switch devices when the power converter circuit is configured in a second mode of operation. The method includes operating a second phase switch circuit portion using a second number of switch devices when the power converter circuit is configured in the second mode of operation. The second number is greater than the first number.
    Type: Application
    Filed: February 5, 2009
    Publication date: August 5, 2010
    Inventors: Peter Thomas Hardman, Erwin Pang, Sanjiv K. Lakhanpal
  • Asymmetric topology to boost low load efficiency in multi-phase switch-mode power conversion
    Patent number: RE46256
    Abstract: Techniques for performing DC to DC power conversion in switch-mode converter circuits include combinations of dynamic switch shedding, phase shedding, symmetric phase circuit topologies, and asymmetric phase circuit topologies. In at least one embodiment of the invention, a method of operating a power converter circuit includes operating a first phase switch circuit portion using a first number of switch devices when the power converter circuit is configured in a first mode of operation. The first number is greater than zero. The method includes operating the first phase switch circuit portion using the first number of switch devices when the power converter circuit is configured in a second mode of operation. The method includes operating a second phase switch circuit portion using a second number of switch devices when the power converter circuit is configured in the second mode of operation. The second number is greater than the first number.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: December 27, 2016
    Assignees: Advanced Micro Devices, Inc., ATI Technologies ULC
    Inventors: Peter Thomas Hardman, Erwin Pang, Sanjiv K. Lakhanpal