Patents by Inventor Tyler James Archer

Tyler James Archer 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).

  • Publication number: 20240186951
    Abstract: Examples of circuits, amplifiers, and stages thereof are provided that improve amplifier stability margins while maintaining signal fidelity. Example structures include pre-driver circuitry; a compensation node exhibiting high impedance during operation; a feedforward driver coupled to the pre-driver circuitry; and first and second signal mirrors; and first and second output drivers, each having a control terminal. Example structures further include feedforward circuitry in which a first node thereof is coupled to the output of the feedforward driver, a second node thereof is coupled to the control terminal of the first output driver, and a third node thereof is coupled to the control terminal of the second output driver; and compensation circuitry in which a first node thereof is coupled to the compensation node, a second node thereof is coupled to a first internal node of the first signal mirror, and a third node thereof is coupled to a second internal node of the second signal mirror.
    Type: Application
    Filed: November 29, 2022
    Publication date: June 6, 2024
    Inventors: Tyler James Archer, Bharath Karthik Vasan
  • Publication number: 20240178800
    Abstract: Examples of circuits, amplifiers and stages thereof include a front-end including an input section having a voltage input and a current output; a current generating section operably coupled to the input section and which produces one or more bias currents to generate a tail current that biases the input section. A signal node, which may be the output terminal of the stage, is operably coupled to the input section. Transconductance choke circuitry is coupled to the signal node and to the current generating section. The transconductance choke circuitry is configured to reduce transconductance of the front-end when the signal at the signal node exceeds an upper threshold or drops below a lower threshold.
    Type: Application
    Filed: November 29, 2022
    Publication date: May 30, 2024
    Inventors: Tyler James Archer, Bharath Karthik Vasan
  • Publication number: 20240146268
    Abstract: Examples of circuits and amplifiers include recirculation circuitry to reduce or cancel error currents produced by target bipolar junction transistors (BJTs). In an example, first recirculation circuitry is coupled to the base of a first signal-conveyance BJT and to one of the collector or the emitter of the first signal-conveyance BJT; second recirculation circuitry is coupled to the base of a second signal-conveyance BJT and to one of the collector or the emitter of the second signal-conveyance BJT; and biasing circuitry is coupled to the first and second recirculation circuitry. The recirculation circuitry may be implemented with BJTs or MOSFETs. Configurations are provided in which error current(s) are recirculated between the base and collector/emitter node of each target BJT.
    Type: Application
    Filed: October 31, 2022
    Publication date: May 2, 2024
    Inventors: Tyler James Archer, Bharath Karthik Vasan, Jerry L. Doorenbos
  • Patent number: 11764740
    Abstract: Examples of amplifiers accurately generate control currents for control terminals of output drivers using current-replication transistors and current mirrors. An input terminal of a first current mirror is coupled to the control terminal of a first current-replication transistor, and an input terminal of a second current mirror is coupled to the control terminal of a second current-replication transistor. The output terminals of the first and second current mirrors are coupled to the control terminals of first and second output drivers, respectively. First and second intermediate currents indicative of first and second currents flowing to the first and second output driver elements, respectively, are generated. Using the first and second current mirrors, first and second control currents are generated to control the first and second output driver elements, respectively, by scaling the first and second intermediate currents according to the gain factors of the current mirrors.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: September 19, 2023
    Assignee: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Tyler James Archer, Joel Martin Halbert, Bharath Karthik Vasan
  • Patent number: 11722104
    Abstract: Examples of amplifiers use current-replication transistors and a separation circuit coupled to such transistors to separate error current components from other current components in a pre-driver of an amplifier. In response to driving the current-replication transistors with the separated error current components, replica base current components that approximate error-modulation components of the pre-driver base currents are generated. Replica-current subtraction circuitry coupled to the current-replication transistors then subtract the replica base current components from the pre-driver base currents, affecting cancellation of the error-modulation components of the pre-driver base currents.
    Type: Grant
    Filed: August 31, 2021
    Date of Patent: August 8, 2023
    Assignee: Texas Instruments Incorporated
    Inventors: Tyler James Archer, Paul Gerard Damitio, Joel Martin Halbert, Bharath Karthik Vasan
  • Publication number: 20230069204
    Abstract: Examples of amplifiers accurately generate control currents for control terminals of output drivers using current-replication transistors and current mirrors. An input terminal of a first current mirror is coupled to the control terminal of a first current-replication transistor, and an input terminal of a second current mirror is coupled to the control terminal of a second current-replication transistor. The output terminals of the first and second current mirrors are coupled to the control terminals of first and second output drivers, respectively. First and second intermediate currents indicative of first and second currents flowing to the first and second output driver elements, respectively, are generated. Using the first and second current mirrors, first and second control currents are generated to control the first and second output driver elements, respectively, by scaling the first and second intermediate currents according to the gain factors of the current mirrors.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 2, 2023
    Inventors: Tyler James Archer, Joel Martin Halbert, Bharath Karthik Vasan
  • Publication number: 20230060318
    Abstract: Examples of amplifiers use current-replication transistors and a separation circuit coupled to such transistors to separate error current components from other current components in a pre-driver of an amplifier. In response to driving the current-replication transistors with the separated error current components, replica base current components that approximate error-modulation components of the pre-driver base currents are generated. Replica-current subtraction circuitry coupled to the current-replication transistors then subtract the replica base current components from the pre-driver base currents, affecting cancellation of the error-modulation components of the pre-driver base currents.
    Type: Application
    Filed: August 31, 2021
    Publication date: March 2, 2023
    Inventors: Tyler James Archer, Paul Gerard Damitio, Joel Martin Halbert, Bharath Karthik Vasan