Patents by Inventor Winfried Speth

Winfried Speth 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).

  • Apparatus for controlling controlled systems with dead time
    Patent number: 4052642
    Abstract: In controlled systems with dead time, particularly converter current controls, the reference value is fed directly to the final control element providing anticipatory control and, in addition is fed to the reference input of the controller through a dead time simulator. In accordance with a further feature, the difference between the input signal and the output signal of the dead time simulator can be added into the final control element as an additional control variable to compensate for inertia of the controlled system.
    Type: Grant
    Filed: March 11, 1976
    Date of Patent: October 4, 1977
    Assignee: Siemens Aktiengesellschaft
    Inventors: Winfried Speth, Walter Dreiseitl, Klaus Bohm, Lothar Schleicher, Herbert Polster