Patents by Inventor Szabolcs Szallasi

Szabolcs Szallasi 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).

  • Current split circuit for equally splitting current between parallel connected LED luminaire strings
    Patent number: 9119258
    Abstract: A system and method for equally splitting the current supplied to parallel connected strings of LEDs. The system and method includes a current splitting circuit such as a mirror circuit that divides the current substantially equally between two or more parallel connected strings of LEDs. The current splitting circuit ensures that illumination levels of the strings of LEDs are uniform without requiring the strings of LEDs to be binned. The current splitting circuit also allows the strings of LEDs to be dimmed in both pulse width modulation (PWM) and continuous modes.
    Type: Grant
    Filed: March 6, 2013
    Date of Patent: August 25, 2015
    Assignee: GENERAL ELECTRIC COMPANY
    Inventors: Jeno Balazs, Szabolcs Szallasi
  • CURRENT SPLIT CIRCUIT FOR EQUALLY SPLITTING CURRENT BETWEEN PARALLEL CONNECTED LED LUMINAIRE STRINGS
    Publication number: 20140252966
    Abstract: A system and method for equally splitting the current supplied to parallel connected strings of LEDs. The system and method includes a current splitting circuit such as a mirror circuit that divides the current substantially equally between two or more parallel connected strings of LEDs. The current splitting circuit ensures that illumination levels of the strings of LEDs are uniform without requiring the strings of LEDs to be binned. The current splitting circuit also allows the strings of LEDs to be dimmed in both pulse width modulation (PWM) and continuous modes.
    Type: Application
    Filed: March 6, 2013
    Publication date: September 11, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jeno Balazs, Szabolcs Szallasi