Patents by Inventor Stephen John Hulsey

Stephen John Hulsey 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).

  • REGULATOR WITH FEEDBACK VOLTAGE AND CURRENT SIGNAL SUMMING INTO CONTROLLER
    Publication number: 20040245970
    Abstract: Methods and apparatus are provided for a current control circuit that forces current sharing among paralleled power converters. Each power converter has an associated current control circuit, which includes a current amplifier and a coupling circuit. The current amplifier outputs a feedback signal to a voltage regulation error amplifier when the power converter output current falls below a predetermined threshold level. The error amplifier causes an increase in the power converter output voltage, forcing an increase in output current. Therefore, each power converter in a paralleled arrangement is regulated to provide a minimum level of output current, based on a predetermined threshold value.
    Type: Application
    Filed: June 6, 2003
    Publication date: December 9, 2004
    Inventors: Philip C. Todd, Joe Anthony Ortiz, Stephen John Hulsey, Bruce R. Baker
  • Regulator with feedback voltage and current signal summing into controller
    Patent number: 6822426
    Abstract: A current control circuit forces current sharing among paralleled power converters. Each power converter has an associated current control circuit, which includes a current amplifier and a coupling circuit. The current amplifier outputs a feedback signal to a voltage regulation error amplifier when the power converter output current falls below a predetermined threshold level. The error amplifier causes an increase in the power converter output voltage, forcing an increase in output current. Therefore, each power converter in a paralleled arrangement is regulated to provide a minimum level of output current, based on a predetermined threshold value.
    Type: Grant
    Filed: June 6, 2003
    Date of Patent: November 23, 2004
    Assignee: The Boeing Company
    Inventors: Philip C. Todd, Joe Anthony Ortiz, Stephen John Hulsey, Bruce R. Baker