Patents by Inventor Tufan C. Karalar

Tufan C. Karalar 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).

  • Soft-start for isolated power converter
    Patent number: 11218077
    Abstract: Current flowing through an inductor on a primary side of a voltage converter is sensed and compared to a threshold peak current value to determine when to end an ON portion of the voltage converter. The secondary side of the voltage converter supplies an indication of output voltage for use in determining the threshold peak current value. On start-up the primary side detects when the indication of output voltage is supplied by the secondary side across on isolation channel. Prior to detecting the indicating is being supplied, the primary side uses an increasing threshold peak current as the threshold peak current value. After detection that the indication of output voltage is being provided by the secondary side, the threshold peak current value is based on the indication of the output voltage.
    Type: Grant
    Filed: November 22, 2016
    Date of Patent: January 4, 2022
    Assignee: Skyworks Solutions, Inc.
    Inventors: Riad S. Wahby, Jeffrey L. Sonntag, Tufan C. Karalar, Michael J. Mills, Eric B. Smith, Ion C. Tesu, Donald E. Alfano
  • SOFT-START FOR ISOLATED POWER CONVERTER
    Publication number: 20170077823
    Abstract: Current flowing through an inductor on a primary side of a voltage converter is sensed and compared to a threshold peak current value to determine when to end an ON portion of the voltage converter. The secondary side of the voltage converter supplies an indication of output voltage for use in determining the threshold peak current value. On start-up the primary side detects when the indication of output voltage is supplied by the secondary side across on isolation channel. Prior to detecting the indicating is being supplied, the primary side uses an increasing threshold peak current as the threshold peak current value. After detection that the indication of output voltage is being provided by the secondary side, the threshold peak current value is based on the indication of the output voltage.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Inventors: Riad S. Wahby, Jeffrey L. Sonntag, Tufan C. Karalar, Michael J. Mills, Eric B. Smith, Ion C. Tesu, Donald E. Alfano
  • Soft-start for isolated power converter
    Patent number: 9531253
    Abstract: Current flowing through an inductor on a primary side of a voltage converter is sensed and compared to a threshold peak current value to determine when to end an ON portion of the voltage converter. The secondary side of the voltage converter supplies an indication of output voltage for use in determining the threshold peak current value. On start-up the primary side detects when the indication of output voltage is supplied by the secondary side across on isolation channel. Prior to detecting the indicating is being supplied, the primary side uses an increasing threshold peak current as the threshold peak current value. After detection that the indication of output voltage is being provided by the secondary side, the threshold peak current value is based on the indication of the output voltage.
    Type: Grant
    Filed: January 30, 2014
    Date of Patent: December 27, 2016
    Assignee: Silicon Laboratories Inc.
    Inventors: Riad S. Wahby, Jeffrey L. Sonntag, Tufan C. Karalar, Michael J. Mills, Eric B. Smith, Ion C. Tesu, Donald E. Alfano
  • SOFT-START FOR ISOLATED POWER CONVERTER
    Publication number: 20150214826
    Abstract: Current flowing through an inductor on a primary side of a voltage converter is sensed and compared to a threshold peak current value to determine when to end an ON portion of the voltage converter. The secondary side of the voltage converter supplies an indication of output voltage for use in determining the threshold peak current value. On start-up the primary side detects when the indication of output voltage is supplied by the secondary side across on isolation channel. Prior to detecting the indicating is being supplied, the primary side uses an increasing threshold peak current as the threshold peak current value. After detection that the indication of output voltage is being provided by the secondary side, the threshold peak current value is based on the indication of the output voltage.
    Type: Application
    Filed: January 30, 2014
    Publication date: July 30, 2015
    Applicant: Silicon Laboratories Inc.
    Inventors: Riad S. Wahby, Jeffrey L. Sonntag, Tufan C. Karalar, Michael J. Mills, Eric B. Smith, Ion C. Tesu, Donald E. Alfano