Patents by Inventor Nathan Richard DORT

Nathan Richard DORT 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).

  • Synchronous rectification to mitigate rail pumping in a single-ended Class D amplifier
    Patent number: 11777415
    Abstract: An amplifier system may include at least one input source, a converter configured to provide voltage rails to an amplifier, the voltage rails including a first voltage rail and a second voltage rail, a MOSFET arranged at a secondary side of the system at the first voltage rail, a second MOSFET arranged at the first voltage rail, a third MOSFET arranged at the second voltage rail, a fourth MOSFET arranged at the second voltage rail; and, a first capacitor arranged at the first voltage rail and a second capacitor arranged at the second voltage rail, the first and forth MOSFETS are configured to operate simultaneously with one another and the second and third MOSFETs are configured to operate simultaneously with one another and opposite of the first and fourth MOSFETs so as to allow synchronous rectification so that the first and second capacitors reciprocally and mutually exclusively charge and discharge.
    Type: Grant
    Filed: April 26, 2021
    Date of Patent: October 3, 2023
    Assignee: Harman International Industries, Incorporated
    Inventors: Matthew Ryan Parnell, Nathan Richard Dort
  • SYNCHRONOUS RECTIFICATION TO MITIGATE RAIL PUMPING IN A SINGLE-ENDED CLASS D AMPLIFIER
    Publication number: 20220345047
    Abstract: An amplifier system may include at least one input source, a converter configured to provide voltage rails to an amplifier, the voltage rails including a first voltage rail and a second voltage rail, a MOSFET arranged at a secondary side of the system at the first voltage rail, a second MOSFET arranged at the first voltage rail, a third MOSFET arranged at the second voltage rail, a fourth MOSFET arranged at the second voltage rail; and, a first capacitor arranged at the first voltage rail and a second capacitor arranged at the second voltage rail, the first and forth MOSFETS are configured to operate simultaneously with one another and the second and third MOSFETs are configured to operate simultaneously with one another and opposite of the first and fourth MOSFETs so as to allow synchronous rectification so that the first and second capacitors reciprocally and mutually exclusively charge and discharge.
    Type: Application
    Filed: April 26, 2021
    Publication date: October 27, 2022
    Inventors: Matthew Ryan PARNELL, Nathan Richard DORT