Patents by Inventor Michael C. L. Chow

Michael C. L. Chow 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 threshold circuit with hysteresis
    Patent number: 5013934
    Abstract: A combined CMOS/linear circuit employs a voltage reference circuit to provide a temperature compensated V.sub.REF output. The circuit includes means for switching the reference circuit off and on in response to the signal on an enable terminal. The voltage reference circuit includes a current mirror feedback which is positive in nature to provide a controlled hysteresis action. This provides noise immunity for the enable input. A digital output indicator is included to indicate the state of the reference circuit.
    Type: Grant
    Filed: May 8, 1989
    Date of Patent: May 7, 1991
    Assignee: National Semiconductor Corporation
    Inventors: Stephen W. Hobrecht, Michael C. L. Chow