Patents by Inventor Abey K. Mathew

Abey K. Mathew 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).

  • Publication number: 20140344600
    Abstract: In response to a condition not being met, asserting a control input of a driver to close a low side switch in a phase leg of a multiphase voltage regulator using coupled inductors, de-asserting the control input in response to a signal to close a high side switch of the phase leg, and asserting the control input in response to a signal to open the high side switch; and in response to the condition not being met, de-asserting the control input, asserting the control input in response to a signal to close a high side switch of another phase leg, and de-asserting the control input in response to a signal to open the high side switch of the other phase leg and to the current in the phase leg being less than a threshold.
    Type: Application
    Filed: May 20, 2013
    Publication date: November 20, 2014
    Applicant: Dell Products, LP
    Inventors: John J. Breen, Abey K. Mathew
  • Patent number: 8839007
    Abstract: Systems and methods may be implemented in a power device subsystem topology to provide an arbitration and communication scheme between a single consolidated non-volatile random access (NVRAM) memory device and multiple discrete digital power controller devices in a manner that provides data protection and the ability to update the full NVRAM content when needed.
    Type: Grant
    Filed: June 17, 2011
    Date of Patent: September 16, 2014
    Assignee: Dell Products LP
    Inventors: Johan Rahardjo, Abey K. Mathew, George G. Richards, III, John J. Breen, Timothy M. Lambert
  • Publication number: 20140108827
    Abstract: A method of power flow mapping in a datacenter includes encoding, by a power supply unit of the datacenter, identification information that uniquely identifies the power supply unit, and modulating the encoded identification information onto a power cable, wherein the power supply unit receives operating power via the power cable. Modulating the encoded information onto the power cable further includes changing a voltage internal to the power supply unit to create a current change in the power cable.
    Type: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Applicant: Dell Products, LP
    Inventors: Abey K. Mathew, John J. Breen, III, Mark A. Muccini
  • Publication number: 20130207630
    Abstract: Systems and methods are provided that may be implemented to dynamically manage voltage regulator switching frequency. In one embodiment, the disclosed systems and methods may be implemented to dynamically find the optimal voltage regulator switching frequency based on the load current (IOUT) and efficiency in a switching voltage regulator device (VR), such as a voltage regulator down device (VRD) that is embedded on a system board of an information handling system.
    Type: Application
    Filed: February 9, 2012
    Publication date: August 15, 2013
    Inventors: Johan Rahardjo, Abey K. Mathew, John J. Breen
  • Patent number: 8405373
    Abstract: Systems and methods for intelligently optimizing voltage regulation efficiency for information handling systems by varying gate drive voltage value based on measured operating efficiency and/or other voltage regulation operating parameters. Different voltage regulation operating parameters may be dynamically monitored and recorded during a power conversion process, and these operating parameters may then be used to dynamically and variably control gate drive voltage level to improve/optimize voltage regulation operating efficiency performance.
    Type: Grant
    Filed: December 30, 2011
    Date of Patent: March 26, 2013
    Assignee: Dell Products L.P.
    Inventors: Fu-Sheng Tsai, Abey K. Mathew
  • Publication number: 20120324246
    Abstract: Systems and methods may be implemented in a power device subsystem topology to provide an arbitration and communication scheme between a single consolidated non-volatile random access (NVRAM) memory device and multiple discrete digital power controller devices in a manner that provides data protection and the ability to update the full NVRAM content when needed.
    Type: Application
    Filed: June 17, 2011
    Publication date: December 20, 2012
    Inventors: Johan Rahardjo, Abey K. Mathew, George G. Richards, III, John J. Breen, Timothy M. Lambert
  • Publication number: 20120290852
    Abstract: In accordance with the present disclosure, a system and method for voltage regulator optimization though predictive transient warning is described. The system may include a transient load, a controller and a voltage regulator. The controller may manage a control state of the transient load and generate a transient notification signal in response to an upcoming transient event at the transient load. The voltage regulator may provide power to the transient load and may change its mode of operation to prepare for the upcoming transient event in response to the transient notification signal.
    Type: Application
    Filed: May 13, 2011
    Publication date: November 15, 2012
    Inventors: Johan Rahardjo, Abey K. Mathew, Indrani Paul
  • Publication number: 20120098511
    Abstract: Systems and methods for intelligently optimizing voltage regulation efficiency for information handling systems by varying gate drive voltage value based on measured operating efficiency and/or other voltage regulation operating parameters. Different voltage regulation operating parameters may be dynamically monitored and recorded during a power conversion process, and these operating parameters may then be used to dynamically and variably control gate drive voltage level to improve/optimize voltage regulation operating efficiency performance.
    Type: Application
    Filed: December 30, 2011
    Publication date: April 26, 2012
    Inventors: Fu-Sheng Tsai, Abey K. Mathew
  • Patent number: 8125200
    Abstract: Systems and methods for intelligently optimizing voltage regulation efficiency for information handling systems by varying gate drive voltage value based on measured operating efficiency and/or other voltage regulation operating parameters. Different voltage regulation operating parameters may be dynamically monitored and recorded during a power conversion process, and these operating parameters may then be used to dynamically and variably control gate drive voltage level to improve/optimize voltage regulation operating efficiency performance.
    Type: Grant
    Filed: April 29, 2009
    Date of Patent: February 28, 2012
    Assignee: Dell Products L.P.
    Inventors: Fu-Sheng Tsai, Abey K. Mathew
  • Patent number: 8037330
    Abstract: A power supply system for a server includes a first power supply, a second power supply, a first variable slope circuit, and a second variable slope circuit. The first power supply unit is adapted to activate if a load is below a predetermined level, and adapted to deactivate if the load is above the predetermined level. The second power supply unit is adapted to activate if the load is above the predetermined level, and adapted to deactivate if the load is below the predetermined level. The first and second variable slope circuits are adapted to receive information about the load applied to the power supply units. The first variable slope circuit is adapted to deactivate the first power supply unit if the load is above the predetermined level. The second variable slope circuit is to deactivate the second power supply unit if the load is below the predetermined level.
    Type: Grant
    Filed: April 7, 2008
    Date of Patent: October 11, 2011
    Assignee: Dell Products, LP
    Inventors: Constantin D. Livescu, Abey K. Mathew
  • Publication number: 20100277151
    Abstract: Systems and methods for intelligently optimizing voltage regulation efficiency for information handling systems by varying gate drive voltage value based on measured operating efficiency and/or other voltage regulation operating parameters. Different voltage regulation operating parameters may be dynamically monitored and recorded during a power conversion process, and these operating parameters may then be used to dynamically and variably control gate drive voltage level to improve/optimize voltage regulation operating efficiency performance.
    Type: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Inventors: Fu-Sheng Tsai, Abey K. Mathew