Patents by Inventor Steven Tumasz

Steven Tumasz 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).

  • Systems and methods for off-time control in a voltage converter
    Patent number: 8576596
    Abstract: Various embodiments of the present invention provide voltage converters and methods for using such. As one example, a voltage converter is disclosed that includes a transformer with a first winding and a second winding. A voltage is applied to the first winding for a period that is followed by an OFF time. The voltage converter further includes an OFF time controller that is operable to adjust the OFF time based at least in part on a load current traversing the second winding.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: November 5, 2013
    Assignee: Texas Instruments Incorporated
    Inventors: Rais K. Miftakhutdinov, Lin Sheng, Jin Liang, John R. Wiggenhorn, Steven Tumasz
  • SYSTEMS AND METHODS FOR OFF-TIME CONTROL IN A VOLTAGE CONVERTER
    Publication number: 20120039093
    Abstract: Various embodiments of the present invention provide voltage converters and methods for using such. As one example, a voltage converter is disclosed that includes a transformer with a first winding and a second winding. A voltage is applied to the first winding for a period that is followed by an OFF time. The voltage converter further includes an OFF time controller that is operable to adjust the OFF time based at least in part on a load current traversing the second winding.
    Type: Application
    Filed: October 20, 2011
    Publication date: February 16, 2012
    Applicant: Texas Instruments Incorporated
    Inventors: Rais K. Miftakhutdinov, Lin Sheng, John R. Wiggenhorn, Jin Liang, Steven Tumasz
  • Systems and methods for off-time control in a voltage converter
    Patent number: 8054652
    Abstract: Various embodiments of the present invention provide voltage converters and methods for using such. As one example, a voltage converter is disclosed that includes a transformer with a first winding and a second winding. A voltage is applied to the first winding for a period that is followed by an OFF time. The voltage converter further includes an OFF time controller that is operable to adjust the OFF time based at least in part on a load current traversing the second winding.
    Type: Grant
    Filed: January 30, 2008
    Date of Patent: November 8, 2011
    Assignee: Texas Instruments Incorporated
    Inventors: Rais K. Miftakhutdinov, Lin Sheng, John R. Wiggenhorn, Jin Liang, Steven Tumasz, Hong Huang
  • Systems and Methods for Off-Time Control in a Voltage Converter
    Publication number: 20090021962
    Abstract: Various embodiments of the present invention provide voltage converters and methods for using such. As one example, a voltage converter is disclosed that includes a transformer with a first winding and a second winding. A voltage is applied to the first winding for a period that is followed by an OFF time. The voltage converter further includes an OFF time controller that is operable to adjust the OFF time based at least in part on a load current traversing the second winding.
    Type: Application
    Filed: January 30, 2008
    Publication date: January 22, 2009
    Applicant: Texas Instruments Incorporated
    Inventors: Rais K. Miftakhutdinov, Lin Sheng, John R. Wiggenhorn, Jin Liang, Steven Tumasz
  • Driving synchronous rectifiers across the isolation barrier
    Publication number: 20060245218
    Abstract: A switching power supply circuit has a power transformer having a core, a primary winding, and a secondary winding. A first switch has a control signal input and is connected to the primary winding of the power transformer. A synchronous rectifier has a control signal input and is connected to the secondary winding of the power transformer. A signal transformer has a primary winding and a secondary winding, and a first connection has a first end connected to the control signal input of the first switch and a second end connected to the primary winding of the signal transformer.
    Type: Application
    Filed: April 28, 2005
    Publication date: November 2, 2006
    Applicant: Astec International Limited
    Inventor: Steven Tumasz