Patents by Inventor Jecko Arakkal

Jecko Arakkal 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).

  • Thermal foldback for a lamp control device
    Patent number: 7911156
    Abstract: The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: March 22, 2011
    Assignee: Lutron Electronics Co., Inc.
    Inventors: David E. Cottongim, Jecko Arakkal, Venkatesh Chitta, Mark S. Taipale
  • Thermal Foldback For A Lamp Control Device
    Publication number: 20090033248
    Abstract: The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.
    Type: Application
    Filed: September 30, 2008
    Publication date: February 5, 2009
    Inventors: David E. Cottongim, Jecko Arakkal, Venkatesh Chitta, Mark S. Taipale
  • Thermal protection for lamp ballasts
    Patent number: 7436131
    Abstract: The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: October 14, 2008
    Assignee: Lutron Electronics Co., Inc.
    Inventors: David E. Cottingim, Jecko Arakkal, Venkatesh Chitta, Mark S. Taipale
  • Apparatus and method for controlling the filament voltage in an electronic dimming ballast
    Publication number: 20070132401
    Abstract: An electronic dimming ballast comprises a filament turn-off circuit for controlling the magnitudes of filament voltages supplied to the filaments of a gas discharge lamp. Each of a plurality of filament windings is directly coupled to one of the filaments and is operable to supply a small AC filament voltage to the filaments. The plurality of filament windings and a control winding are loosely magnetically coupled to a resonant inductor of an output circuit of the ballast. A controllably conductive device is coupled across the control winding. When the controllably conductive device is conductive, the voltage across the control winding and the filament windings falls to zero volts. The controllably conductive device is driven with a pulse-width modulated (PWM) signal so as to control the magnitudes of the filament voltages. The filament voltages are provided to the filaments before striking the lamp, and when dimming the lamp near low end.
    Type: Application
    Filed: July 21, 2006
    Publication date: June 14, 2007
    Inventors: Brent Gawrys, Jecko Arakkal, Mark Taipale, Dragan Veskovic, Mark Fisher
  • Thermal protection for lamp ballasts
    Patent number: 6982528
    Abstract: The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.
    Type: Grant
    Filed: November 12, 2003
    Date of Patent: January 3, 2006
    Assignee: Lutron Electronics Co., Inc.
    Inventors: David E. Cottongim, Jecko Arakkal, Venkatesh Chitta, Mark S. Taipale
  • Thermal protection for lamp ballasts
    Publication number: 20050280377
    Abstract: The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.
    Type: Application
    Filed: August 29, 2005
    Publication date: December 22, 2005
    Applicant: LUTRON ELECTRONICS CO., INC.
    Inventors: David cottongim, Jecko Arakkal, Venkatesh Chitta, Mark Taipale
  • THERMAL PROTECTION FOR LAMP BALLASTS
    Publication number: 20050099142
    Abstract: The output current of a ballast is dynamically limited when an over-temperature condition is detected in the ballast according to one of (i) a step function or (ii) a combination of step and continuous functions, so as to reduce the temperature of the ballast while continuing to operate it.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 12, 2005
    Inventors: David Cottongim, Jecko Arakkal, Venkatesh Chitta, Mark Taipale