Patents by Inventor Matthew Sean Sullivan

Matthew Sean Sullivan 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).

  • Optimizing comparator operation for a varying DC component input
    Patent number: 11398787
    Abstract: In one embodiment, an apparatus includes a different amplifier. A node in the apparatus receives a motor-current signal and an output of the differential amplifier. The motor-current signal represents a motor current of a DC brush motor. Moreover, a first input of the differential amplifier is coupled to a node. The apparatus also includes a low-pass filter with an input receiving a motor-current signal and an output coupled to a second input of the differential amplifier. The apparatus additionally includes a comparator with a first input coupled to the output of the differential amplifier and a second input coupled to a referential voltage.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: July 26, 2022
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Matthew Sean Sullivan, Arun Tej Vemuri
  • OPTIMIZING COMPARATOR OPERATION FOR A VARYING DC COMPONENT INPUT
    Publication number: 20190006970
    Abstract: In one embodiment, an apparatus includes a different amplifier. A node in the apparatus receives a motor-current signal and an output of the differential amplifier. The motor-current signal represents a motor current of a DC brush motor. Moreover, a first input of the differential amplifier is coupled to a node. The apparatus also includes a low-pass filter with an input receiving a motor-current signal and an output coupled to a second input of the differential amplifier. The apparatus additionally includes a comparator with a first input coupled to the output of the differential amplifier and a second input coupled to a referential voltage.
    Type: Application
    Filed: June 14, 2018
    Publication date: January 3, 2019
    Inventors: Matthew Sean Sullivan, Arun Tej Vemuri