Patents by Inventor Franciscus H. Th. Lammers

Franciscus H. Th. Lammers 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).

  • Mode power supply including self-inductance in the drive circuit
    Patent number: 5404095
    Abstract: A circuit arrangement provided with a switch mode power supply energized with a pulsatory input current generated by means of high-frequency switching of the main switching means HS (3) provided in turn with a drive circuit (6) having at least drive switching means SS (60) and connected to a return current line (7).A self-inductance element (61) is included in the drive circuit, preferably between the main switching means HS and the drive switching means SS. This arrangement results in a rapid level shifter of compact construction.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: April 4, 1995
    Assignee: U.S. Philips Corporation
    Inventor: Franciscus H. Th. Lammers