Patents by Inventor Mate Krejcarek

Mate Krejcarek 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).

  • Lighting system electronic ballast or driver with shunt control for lighting control quiescent current
    Patent number: 8653759
    Abstract: Ballasts and LED drivers are presented for powering at least one light source, in which a shunt circuit provides a high impedance to allow operation of the light source when the AC input power exceeds a power threshold value, and provides a low impedance when the AC input power is below the power threshold value to prevent an output power stage from providing power to the light source.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: February 18, 2014
    Assignee: General Electric Company
    Inventors: Peter Vigh, Mate Krejcarek, Gabor Schmidt, Jacint Gergely
  • LIGHTING SYSTEM ELECTRONIC BALLAST OR DRIVER WITH SHUNT CIRCUIT FOR LIGHTING CONTROL QUIESCENT CURRENT
    Publication number: 20120104975
    Abstract: Ballasts and LED drivers are presented for powering at least one light source, in which a shunt circuit provides a high impedance to allow operation of the light source when the AC input power exceeds a power threshold value, and provides a low impedance when the AC input power is below the power threshold value to prevent an output power stage from providing power to the light source.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Inventors: Peter Vigh, Mate Krejcarek, Gabor Schmidt, Jacint Gergely
  • CURRENT RINGING FILTER FOR DIMMABLE COMPACT FLUORESCENT LAMPS
    Publication number: 20120104965
    Abstract: A ballast or drive circuit is located between a dimmer switch and at least one light source or lamp. The ballast includes an electromagnetic interference (EMI) filter operatively disposed between the dimmer switch and the at least one lamp. The EMI filter includes an inductor. A low pass filter, preferably an inductor, is serially connected to the inductor of the EMI filter and situated between the dimmer switch and EMI filter for addressing currency ringing, reducing high current peaks, and decreasing flickering that would otherwise result with multiple light sources when the lamp is turned on.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Inventors: Jacint Gergely, Gabor Schmidt, Mate Krejcarek, Laszlo Petras, Peter Vigh