Patents by Inventor Joannes Mathilde Josephus Sevenhans

Joannes Mathilde Josephus Sevenhans 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).

  • Patent number: 7279973
    Abstract: An H-bridge circuit capable of performing switching using one or more intermediate voltage phases each held for a period of time in the midst of the switching operation. This reduces power dissipation associated with the switching operation, while only using one set of high/low voltage supplies. The H-bridge may be used to provide current via an inductor to a load. A class AB amplifier may be placed in parallel with the H-bridge to provide supplemental correcting current to the load to allow the combination to act as an efficient and accurate signal driver. Furthermore, the use of intermediate voltages in the H bridge allows for increased slew rates for any given operation frequency, and allows for the driving of a given signal on the load using a lower operational frequency.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: October 9, 2007
    Assignee: AMI Semiconductor Belgium BVBA
    Inventors: Joannes Mathilde Josephus Sevenhans, Damien Luc Francois Macq, Herman Joris Casier, Johan Camiel Julia Janssens