Patents by Inventor James Noon

James Noon 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: 8461816
    Abstract: A controller receives a value indicative of a number of phases in a power supply to be activated for producing an output voltage to power a load. The controller utilizes the value to adjust a magnitude of at least one control coefficient associated with the power supply. The control can also use the value of the input voltage to adjust the magnitude of at least one control coefficient. The controller digitally computes values for the one or more control coefficients based on the received value indicating the number of phases in the power supply to be activated for producing the output voltage. Based on the adjusted magnitude of the at least one control coefficient, the controller produces control signals to control the number of phases in the power supply as specified by the value to produce the output voltage.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: June 11, 2013
    Assignee: International Rectifier Corporation
    Inventors: Venkat Sreenivas, Robert T. Carroll, James Noon
  • Patent number: 8330444
    Abstract: According to one configuration, a monitor circuit monitors a delivery of power supplied by one or more switch devices to a dynamic load. Based on an amount of power delivered to the load as measured by the monitor circuit, a control circuit produces a voltage control signal. A gate bias voltage generator circuit utilizes the voltage control signal to generate a switch activation voltage or bias voltage. A switch drive circuit uses the switch activation voltage as generated by the bias voltage generator to activate each of the one or more switch devices during a portion of a switching cycle when a respective switch device is in an ON state, and the respective switch device conducts current from a voltage source through the switch device to the load. The control circuit adjusts the voltage control signal to modify a level of the switch activation voltage depending on the dynamic load.
    Type: Grant
    Filed: June 6, 2011
    Date of Patent: December 11, 2012
    Assignee: International Rectifier Corporation
    Inventors: James Noon, Lawrence Spaziani, Robert T. Carroll, Venkat Sreenivas
  • Patent number: 8242759
    Abstract: According to one configuration, a multi-phase power supply adjusts a number of active phases based at least in part on a peak current supplied to a dynamic load. For example, a controller associated with the multi-phase power supply can monitor or receive a value indicative of a peak magnitude of current delivered by the multi-phase power supply to a dynamic load. The controller initiates comparison of the value to threshold information. Based at least in part on the comparison, the controller adjusts how many phases of the multi-phase power supply are activated to deliver the current delivered to the dynamic load. Thus, one embodiment herein is directed to controlling a multi-phase power supply based at least in part on a measured parameter such as peak current magnitude.
    Type: Grant
    Filed: January 12, 2009
    Date of Patent: August 14, 2012
    Assignee: International Rectifier Corporation
    Inventors: Robert T. Carroll, James Noon, Venkat Sreenivas, Gary D. Martin
  • Publication number: 20110234183
    Abstract: According to one configuration, a monitor circuit monitors a delivery of power supplied by one or more switch devices to a dynamic load. Based on an amount of power delivered to the load as measured by the monitor circuit, a control circuit produces a voltage control signal. A gate bias voltage generator circuit utilizes the voltage control signal to generate a switch activation voltage or bias voltage. A switch drive circuit uses the switch activation voltage as generated by the bias voltage generator to activate each of the one or more switch devices during a portion of a switching cycle when a respective switch device is in an ON state, and the respective switch device conducts current from a voltage source through the switch device to the load. The control circuit adjusts the voltage control signal to modify a level of the switch activation voltage depending on the dynamic load.
    Type: Application
    Filed: June 6, 2011
    Publication date: September 29, 2011
    Inventors: James Noon, Lawrence Spaziani, Robert T. Carroll, Venkat Sreenivas
  • Patent number: 8024138
    Abstract: In an example configuration, a power supply manager receives an output current value representing an amount of output current supplied by one or more power converter phases to a load. The power supply manager also receives a duty cycle value representing a duty cycle for controlling operation of the at least one power converter phase. The power supply manager produces an estimate of input current supplied to the power supply circuit based at least in part on multiplying the output current value by the duty cycle value. Contrary to conventional methods such as physically measuring an input current using complex measuring circuitry, embodiments herein include utilizing parameter information such as output current information and duty cycle information to deduce an amount of input current.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: September 20, 2011
    Assignee: International Rectifier Corporation
    Inventors: Robert T. Carroll, James Noon, Venkat Sreenivas, Gary D. Martin
  • Publication number: 20110204864
    Abstract: According to example configurations herein, a controller receives a value indicative of a number of phases in a power supply to be activated for producing an output voltage to power a load. The controller utilizes the value to adjust a magnitude of at least one control coefficient associated with the power supply. The control can also use the value of the input voltage to adjust the magnitude of at least one control coefficient. For example, according to one example configuration, the controller digitally computes values for the one or more control coefficients based on the received value indicating the number of phases in the power supply to be activated for producing the output voltage. Based on the adjusted magnitude of the at least one control coefficient, the controller produces control signals to control the number of phases in the power supply as specified by the value to produce the output voltage.
    Type: Application
    Filed: June 16, 2010
    Publication date: August 25, 2011
    Inventors: Venkat Sreenivas, Robert T. Carroll, James Noon
  • Patent number: 7982446
    Abstract: According to one configuration, a monitor circuit monitors a delivery of power supplied by one or more switch devices to a dynamic load. Based on an amount of power delivered to the load as measured by the monitor circuit, a control circuit produces a voltage control signal. A gate bias voltage generator circuit utilizes the voltage control signal to generate a switch activation voltage or bias voltage. A switch drive circuit uses the switch activation voltage as generated by the bias voltage generator to activate each of the one or more switch devices during a portion of a switching cycle when a respective switch device is in an ON state, and the respective switch device conducts current from a voltage source through the switch device to the load. The control circuit adjusts the voltage control signal to modify a level of the switch activation voltage depending on the dynamic load.
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: July 19, 2011
    Assignee: International Rectifier Corporation
    Inventors: James Noon, Lawrence Spaziani, Robert T. Carroll, Venkat Sreenivas
  • Publication number: 20090327786
    Abstract: According to one configuration, a multi-phase power supply adjusts a number of active phases based at least in part on a peak current supplied to a dynamic load. For example, a controller associated with the multi-phase power supply can monitor or receive a value indicative of a peak magnitude of current delivered by the multi-phase power supply to a dynamic load. The controller initiates comparison of the value to threshold information. Based at least in part on the comparison, the controller adjusts how many phases of the multi-phase power supply are activated to deliver the current delivered to the dynamic load. Thus, one embodiment herein is directed to controlling a multi-phase power supply based at least in part on a measured parameter such as peak current magnitude.
    Type: Application
    Filed: January 12, 2009
    Publication date: December 31, 2009
    Inventors: Robert T. Carroll, James Noon, Venkat Sreenivas, Gary D. Martin
  • Publication number: 20090195231
    Abstract: According to one configuration, a monitor circuit monitors a delivery of power supplied by one or more switch devices to a dynamic load. Based on an amount of power delivered to the load as measured by the monitor circuit, a control circuit produces a voltage control signal. A gate bias voltage generator circuit utilizes the voltage control signal to generate a switch activation voltage or bias voltage. A switch drive circuit uses the switch activation voltage as generated by the bias voltage generator to activate each of the one or more switch devices during a portion of a switching cycle when a respective switch device is in an ON state, and the respective switch device conducts current from a voltage source through the switch device to the load. The control circuit adjusts the voltage control signal to modify a level of the switch activation voltage depending on the dynamic load.
    Type: Application
    Filed: June 20, 2008
    Publication date: August 6, 2009
    Inventors: James Noon, Lawrence Spaziani, Robert T. Carroll, Venkat Sreenivas
  • Publication number: 20090198460
    Abstract: In an example configuration, a power supply manager receives an output current value representing an amount of output current supplied by one or more power converter phases to a load. The power supply manager also receives a duty cycle value representing a duty cycle for controlling operation of the at least one power converter phase. The power supply manager produces an estimate of input current supplied to the power supply circuit based at least in part on multiplying the output current value by the duty cycle value. Contrary to conventional methods such as physically measuring an input current using complex measuring circuitry, embodiments herein include utilizing parameter information such as output current information and duty cycle information to deduce an amount of input current.
    Type: Application
    Filed: June 20, 2008
    Publication date: August 6, 2009
    Inventors: Robert T. Carroll, James Noon, Venkat Sreenivas, Gary D. Martin