Patents by Inventor Jay L. Cohan

Jay L. Cohan 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).

  • Bandgap voltage reference circuit with an npn current bypass circuit
    Patent number: 4795918
    Abstract: A temperature compensated bandgap voltage reference circuit employs an npn transistor based bypass circuit to maintain a constant collector current within the reference circuit. This bypass circuit draws a nominal current from the bandgap voltage reference circuit. The value of this current is set by a bias circuit responsive to changes in the supply voltage. As the supply voltage changes, the bias circuit varies the conductance of a bypass transistor to draw more or less current and thereby maintain the collector current within the reference circuit constant.
    Type: Grant
    Filed: May 1, 1987
    Date of Patent: January 3, 1989
    Assignee: Fairchild Semiconductor Corporation
    Inventors: Suresh M. Menon, Jay L. Cohan