Patents by Inventor Frederic Ballin

Frederic Ballin 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 driving light-emitting diodes
    Patent number: 8188676
    Abstract: At least some embodiments include a LED driver system. The system includes multiple branches of series-coupled LEDs, multiple current sources, and control logic. Each of the current sources is coupled to a separate branch of series-coupled LEDs. The control logic is coupled to the current sources, and is configured to regulate current through each branch based at least in part on a feedback voltage measured at a node in one of the branches.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: May 29, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Paolo Cusinato, Frederic Ballin, Lorenzo Indiani, Philippe Perney, Gwenaelle Merrien, Francois Bauduin
  • SYSTEMS AND METHODS FOR DRIVING LIGHT-EMITTING DIODES
    Publication number: 20110204798
    Abstract: At least some embodiments include a LED driver system. The system includes multiple branches of series-coupled LEDs, multiple current sources, and control logic. Each of the current sources is coupled to a separate branch of series-coupled LEDs. The control logic is coupled to the current sources, and is configured to regulate current through each branch based at least in part on a feedback voltage measured at a node in one of the branches.
    Type: Application
    Filed: May 3, 2011
    Publication date: August 25, 2011
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Paolo Cusinato, Frederic Ballin, Lorenzo Indiani, Philippe Perney, Gwenaelle Merrien, Francois Bauduin
  • SYSTEMS AND METHODS FOR DRIVING LIGHT-EMITTING DIODES
    Publication number: 20080252222
    Abstract: At least some embodiments include a LED driver system. The system includes multiple branches of series-coupled LEDs, multiple current sources, and control logic. Each of the current sources is coupled to a separate branch of series-coupled LEDs. The control logic is coupled to the current sources, and is configured to regulate current through each branch based at least in part on a feedback voltage measured at a node in one of the branches.
    Type: Application
    Filed: December 19, 2007
    Publication date: October 16, 2008
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Paolo CUSINATO, Frederic BALLIN, Lorenzo INDIANI, Philippe PERNEY, Gwenaelle MERRIEN, Francois BAUDUIN