Patents by Inventor Schnabel Jurgen

Schnabel Jurgen 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).

  • Output stage for amplifiers
    Patent number: 5202646
    Abstract: An output stage for an amplifier includes first and second load current-carrying n-p-n output transistors disposed in different respective amplifier branches having different amplification properties. Negative feedback and limiting circuitry provides a negative feedback current to the first one of the output transistors and limits the negative feedback current to a preselected maximum value over a predetermined output current range whereby the amplification properties of the first one of the output transistors are affected in a range of output voltages of the amplifier stage.
    Type: Grant
    Filed: October 23, 1991
    Date of Patent: April 13, 1993
    Assignee: Telefunken Electronic GmbH
    Inventors: Gutsch Henrik, Rebmann Volkmara, Schnabel Jurgen