Patents by Inventor Lou Spangler

Lou Spangler 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).

  • Temperature compensated voltage regulator having beta compensation
    Patent number: 5258703
    Abstract: A temperature compensated voltage regulator circuit having a first resistor (R.sub.X) disposed in the base circuit between two cascaded transistors and a second resistor (R.sub.F) coupled between the collector and base of the first of the two transistors to provide compensation for beta variations in the transistors resulting from process variables during the manufacture of the circuit.
    Type: Grant
    Filed: August 3, 1992
    Date of Patent: November 2, 1993
    Assignee: Motorola, Inc.
    Inventors: Phuc C. Pham, Lou Spangler, Greg Davis