Patents by Inventor Alex P. M. Van Den Bossche

Alex P. M. Van Den Bossche 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).

  • Bridge commutator with separate drive oscillator for electrodeless lamps
    Patent number: 6160357
    Abstract: A circuit arrangement for igniting and operating an electrodeless discharge lamp provided with a half-bridge commutator having two switching elements each having an emitter electrode and a control electrode and a parasitic capacitance in between. Each switching element is alternately switched to a conducting state by means of a resonant control circuit. The resonant control circuit is coupled to an oscillator by way of a transformer. The resonant circuit is provided with a capacitor which forms a part of the oscillator.
    Type: Grant
    Filed: October 5, 1999
    Date of Patent: December 12, 2000
    Assignee: U.S. Philips Corporation
    Inventors: Ronny A. A. M. Jacobs, Alex P. M. Van Den Bossche