Patents by Inventor George C. Carlsen, II

George C. Carlsen, II 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: 4287477
    Abstract: An arrangement to provide feedback to amplifier systems incorporating an inductive laod. A low value error-sensing resistor is incorporated in conjunction with one or more transistors to provide a feedback correction signal to an amplifier which corrects for distortion caused by both the amplifier and the inductive load. A first embodiment providing a single-ended amplifier system incorporates an error-sensing resistor in series with a transistor, an inductive load and a bias resistor. A negative feedback error signal is provided to the amplifier from a point between the error-sensing resistor and the bias resistor. A second embodiment additionally includes a transformer to isolate the load. The third embodiment provides push-pull amplifier configurations. The third embodiment incorporates two complementary transistors to drive an inductive load. A pick-off arrangement including two capacitors and an error-sensing resistor provides negative feedback to the amplifier.
    Type: Grant
    Filed: February 22, 1979
    Date of Patent: September 1, 1981
    Assignee: Dynamic Compliance, Incorporated
    Inventors: George C. Carlsen, II, John C. Crumm, Koji Matsuda