Patents by Inventor Thomas Dumka

Thomas Dumka 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).

  • Switching regulator for operating luminaires, featuring peak current value controlling and mean current value detection
    Patent number: 10285231
    Abstract: The invention relates to a switching regulator for operating luminaires, comprising a control circuit (4). The control circuit (4) is designed to operate, by triggering the switch (5) that is coupled to a coil, the switching regulator (3) in a limit mode of operation when the load generated by the luminaire (2) is so high that the resulting switching-off threshold exceeds a predefined minimum switching-off value, and operate the switching regulator in a discontinuous mode of operation at the minimum switching-off value when the load generated by the luminaire (2) is so low that the switching-off threshold in a limit mode of operation would lie below the predefined minimum switching-off value. The signal representing the current is fed to the control circuit (4) in both the limit mode of operation and the discontinuous mode of operation without being subjected to any external mean value generation.
    Type: Grant
    Filed: February 4, 2016
    Date of Patent: May 7, 2019
    Assignee: TRICONIC GMBH & CO KG
    Inventors: John Schönberger, Thomas Dumka, Andre Mitterbacher, Lukas Saccavini
  • SWITCHING REGULATOR FOR OPERATING LUMINAIRES, FEATURING PEAK CURRENT VALUE CONTROLLING AND MEAN CURRENT VALUE DETECTION
    Publication number: 20180063910
    Abstract: The invention relates to a switching regulator for operating luminaires, comprising a control circuit (4). The control circuit (4) is designed to operate, by triggering the switch (5) that is coupled to a coil, the switching regulator (3) in a limit mode of operation when the load generated by the luminaire (2) is so high that the resulting switching-off threshold exceeds a predefined minimum switching-off value, and operate the switching regulator in a discontinuous mode of operation at the minimum switching-off value when the load generated by the luminaire (2) is so low that the switching-off threshold in a limit mode of operation would lie below the predefined minimum switching-off value. The signal representing the current is fed to the control circuit (4) in both the limit mode of operation and the discontinuous mode of operation without being subjected to any external mean value generation.
    Type: Application
    Filed: February 4, 2016
    Publication date: March 1, 2018
    Applicant: TRIDONIC GMBH & CO KG
    Inventors: John Schönberger, Thomas Dumka, Andre Mitterbacher, Lukas Saccavini