Patents by Inventor Keith E. Sanborn

Keith E. Sanborn 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).

  • Low current power-on reset circuit and method
    Patent number: 8754679
    Abstract: A power-on reset (POR) circuit includes a first transistor (MPa) having a source coupled to a first supply voltage (VDD) and a gate coupled to a second supply voltage (GND). A resistor (R0) has a first terminal coupled by a depletion mode transistor (JP0) to the second supply voltage and a second terminal coupled to a drain of the first transistor. A Schmitt trigger (20) has an input coupled to receive a first signal (VTRIGGER) on a conductor (14) coupled to the second terminal of the resistor and a terminal of a capacitor (C0), for producing an output voltage (VO) representative of a power-on reset signal (VPOR) in response to an interruption of the first supply voltage (VDD).
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: June 17, 2014
    Assignee: Texas Instruments Incorporated
    Inventors: Keith E. Sanborn, Johnnie F. Molina
  • Low current power-on reset circuit and method
    Publication number: 20110074470
    Abstract: A power-on reset (POR) circuit includes a first transistor (MPa) having a source coupled to a first supply voltage (VDD) and a gate coupled to a second supply voltage (GND). A resistor (R0) has a first terminal coupled by a depletion mode transistor (JP0) to the second supply voltage and a second terminal coupled to a drain of the first transistor. A Schmitt trigger (20) has an input coupled to receive a first signal (VTRIGGER) on a conductor (14) coupled to the second terminal of the resistor and a terminal of a capacitor (C0), for producing an output voltage (VO) representative of a power-on reset signal (VPOR) in response to an interruption of the first supply voltage (VDD).
    Type: Application
    Filed: September 29, 2009
    Publication date: March 31, 2011
    Inventors: Keith E. Sanborn, Johnnie F. Molina