Patents by Inventor Bertrand J. E. Hontelé

Bertrand J. E. Hontelé 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).

  • LED driver circuit with PWM output
    Patent number: 6586890
    Abstract: The driver circuit for light emitting diodes (LEDs) of the present invention provides power to LEDs using pulse width modulation (PWM). The driver circuit 100 uses current feedback to adjust power to LED arrays 54 and provides a full light and a dim mode.
    Type: Grant
    Filed: December 5, 2001
    Date of Patent: July 1, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Young-Kee Min, Bernd Clauberg, Bertrand J. E. Hontelé
  • LED driver circuit with PWM output
    Publication number: 20030102819
    Abstract: The driver circuit for light emitting diodes (LEDs) of the present invention provides power to LEDs using pulse width modulation (PWM). The driver circuit 100 uses current feedback to adjust power to LED arrays 54 and provides a full light and a dim mode.
    Type: Application
    Filed: December 5, 2001
    Publication date: June 5, 2003
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N. V.
    Inventors: Young-Kee Min, Bernd Clauberg, Bertrand J. E. Hontele
  • Flyback as LED driver
    Patent number: 6304464
    Abstract: The invention relates to a circuit arrangement for operating a semiconductor light source, comprising input terminals for connecting a supply voltage, input filter means, a converter provided with a switching element having a control circuit, and provided with inductive means, and output terminals for connecting the semiconductor light source. The switching element is periodically driven into conduction for a period ton. According to the invention, the converter is formed by a flyback converter, and the inductive means are formed by a transformer, and the control circuit controls the ton.
    Type: Grant
    Filed: July 6, 2000
    Date of Patent: October 16, 2001
    Assignee: U.S. Philips Corporation
    Inventors: Ronny A. A. M. Jacobs, Bertrand J. E. Hontele, John E. K. G. De Clercq, Marcel J. M. Bucks, Engbert B. G. Nijhof