Patents by Inventor Adrianus Martinus Johannes De Bijl

Adrianus Martinus Johannes De Bijl 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 device
    Patent number: 6384543
    Abstract: A half-bridge converter for operating a discharge lamp utilizes a non-linear coil in series with the discharge lamp. Suitable proportioning ensures an unambiguous relation between the frequency of the lamp current and the lamp power over a comparatively large range of lamp power.
    Type: Grant
    Filed: April 5, 2001
    Date of Patent: May 7, 2002
    Assignee: Koninklijke Philips Electronics, N.V.
    Inventors: Arnold Willem Buij, Adrianus Martinus Johannes De Bijl
  • SWITCHING DEVICE
    Publication number: 20020014858
    Abstract: A half-bridge converter for operating a discharge lamp utilizes a non-linear coil in siries with the discharge lamp. Suitable proportioning ensures an unambiguous relation between the frequency of the lamp current and the lamp power over a comparatively large range of lamp power.
    Type: Application
    Filed: April 5, 2001
    Publication date: February 7, 2002
    Inventors: Arnold Willem Buij, Adrianus Martinus Johannes De Bijl