Patents by Inventor Christoph Leof

Christoph Leof 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).

  • Method to drive a high-voltage tube grid
    Patent number: 8482949
    Abstract: A method and device for operating a device for high-voltage switching for driving capacitive loads, having a first and a second input terminal (11, 12) for applying a high voltage supply, such that a higher potential of the high-voltage supply may be applied to the first input terminal (11) and a lower potential may be applied to the second input terminal (12); a first and a second switch (S1, S2), connected in series between the first and the second input terminal (11, 12); a first and a second clamping diode (D3, D4), connected in series and in the same blocking direction between the first input terminal and the second input terminal, such that the first second clamping diode block with respect to the applied high voltage; a storage inductor Ls, which is connected with one of its terminals to a connecting point (13) of the both switches and with another terminal to a connecting point (14) of the both clamping diodes; and an output terminal (15) for connecting a capacitive load Cl, which output terminal is c
    Type: Grant
    Filed: February 11, 2008
    Date of Patent: July 9, 2013
    Assignee: Koninklijke Philips N.V.
    Inventors: Marc Maria Alex Bleukx, Christoph Leof, Rainer Pietig
  • METHOD TO DRIVE A HIGH-VOLTAGE TUBE GRID
    Publication number: 20100038973
    Abstract: A method and device for operating a device for high-voltage switching for driving capacitive loads, having a first and a second input terminal (11, 12) for applying a high voltage supply, such that a higher potential of the high-voltage supply may be applied to the first input terminal (11) and a lower potential may be applied to the second input terminal (12); a first and a second switch (S1, S2), connected in series between the first and the second input terminal (11, 12); a first and a second clamping diode (D3, D4), connected in series and in the same blocking direction between the first input terminal and the second input terminal, such that the first second clamping diode block with respect to the applied high voltage; a storage inductor Ls, which is connected with one of its terminals to a connecting point (13) of the both switches and with another terminal to a connecting point (14) of the both clamping diodes; and an output terminal (15) for connecting a capacitive load C1, which output terminal is c
    Type: Application
    Filed: February 11, 2008
    Publication date: February 18, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Marc Maria Alex Bleukx, Christoph Leof, Rainer Pietig