Patents by Inventor Johannes Van Meurs

Johannes Van Meurs 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).

  • Publication number: 20070182339
    Abstract: A high frequency driver for a gas discharge lamp is supplied with a DC voltage. The driver converts the input DC voltage to an AC voltage and supplies the AC voltage to a load, which comprises a gas discharge lamp, an inductor connected in series with the lamp and a capacitor connected in parallel to the lamp. The AC voltage has a first high frequency during ignition of the lamp and a second high frequency during normal operation of the lamp after its ignition. The first frequency is higher than the second frequency by a ratio of at least 2,2. By modulating the frequency of the AC voltage the ratio can be increased while still complying with EMI and RFI requirements.
    Type: Application
    Filed: January 19, 2005
    Publication date: August 9, 2007
    Applicant: KONINKLIJKE PHILIPS ELECTRONIC N.V.
    Inventors: Johannes Van Meurs, Dorota Pawelek
  • Publication number: 20050104538
    Abstract: The invention relates to an electric circuit for igniting a discharge lamp, comprising a voltage source, at least one first condenser electrically connected to the voltage source, a series chain, electrically connected in parallel with the first condenser, of at least one ignition and at least one first inductor, and a discharge lamp electrically connected in parallel with the ignition, which discharge lamp is provided with a discharge vessel. The invention also relates to an electrical component module for use in such an electric circuit. The invention further relates to a discharge lamp for use in such an electric circuit.
    Type: Application
    Filed: February 12, 2003
    Publication date: May 19, 2005
    Inventors: Jerzy Janczak, Johannes Van Meurs