Patents by Inventor Terence A. ORR

Terence A. ORR 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: 20210219396
    Abstract: The present disclosure relates to current control circuitry for controlling a current through a load. The current control circuitry comprises amplifier circuitry, reference voltage generator circuitry configured to supply a fixed reference voltage to a first input of the amplifier circuitry and an output stage comprising: a control terminal coupled to an output of the amplifier circuitry; a current input terminal configured to be coupled to the load; and a current output terminal. The current control circuitry further comprises a variable resistance coupled to the current output terminal of the output stage, and a feedback path between the current output terminal of the output stage and a second terminal of the amplifier circuitry for providing a feedback voltage to a second input of the amplifier circuitry.
    Type: Application
    Filed: December 16, 2020
    Publication date: July 15, 2021
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventors: Dave SMITH, Saurabh SINGH, Andrew BUIST, Paulius CEREBIEJUS, Mark J. MCCLOY-STEVENS, Terence A. ORR
  • Patent number: 10917053
    Abstract: This application relates to amplifier circuits for amplifying an audio signal. An amplifier circuit (100) has a voltage regulator (201) for outputting a supply voltage to an amplifier (104). An output capacitor (103) coupled to an output node of the voltage regulator. The voltage regulator is operable in a voltage-control mode to maintain the output voltage (VS) at a nominal output voltage and in current-control mode to limit the input current drawn to exceed a defined limit. A controller (301) is operable in a first mode to define the nominal output voltage so as not to exceed a first voltage magnitude and in a second mode to define the nominal output voltage to be equal to a second, higher, voltage magnitude.
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: February 9, 2021
    Assignee: Cirrus Logic, Inc.
    Inventor: Terence Orr
  • Publication number: 20200153393
    Abstract: This application relates to amplifier circuits for amplifying an audio signal. An amplifier circuit (100) has a voltage regulator (201) for outputting a supply voltage to an amplifier (104). An output capacitor (103) coupled to an output node of the voltage regulator. The voltage regulator is operable in a voltage-control mode to maintain the output voltage (VS) at a nominal output voltage and in current-control mode to limit the input current drawn to exceed a defined limit. A controller (301) is operable in a first mode to define the nominal output voltage so as not to exceed a first voltage magnitude and in a second mode to define the nominal output voltage to be equal to a second, higher, voltage magnitude.
    Type: Application
    Filed: January 14, 2020
    Publication date: May 14, 2020
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventor: Terence ORR
  • Patent number: 10581391
    Abstract: This application relates to amplifier circuits for amplifying an audio signal. An amplifier circuit (100) has a voltage regulator (201) for outputting a supply voltage to an amplifier (104). An output capacitor (103) coupled to an output node of the voltage regulator. The voltage regulator is operable in a voltage-control mode to maintain the output voltage (VS) at a nominal output voltage and in current-control mode to limit the input current drawn to exceed a defined limit. A controller (301) is operable in a first mode to define the nominal output voltage so as not to exceed a first voltage magnitude and in a second mode to define the nominal output voltage to be equal to a second, higher, voltage magnitude.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: March 3, 2020
    Assignee: Cirrus Logic, Inc.
    Inventor: Terence Orr
  • Publication number: 20190181811
    Abstract: This application relates to amplifier circuits for amplifying an audio signal. An amplifier circuit (100) has a voltage regulator (201) for outputting a supply voltage to an amplifier (104). An output capacitor (103) coupled to an output node of the voltage regulator. The voltage regulator is operable in a voltage-control mode to maintain the output voltage (VS) at a nominal output voltage and in current-control mode to limit the input current drawn to exceed a defined limit. A controller (301) is operable in a first mode to define the nominal output voltage so as not to exceed a first voltage magnitude and in a second mode to define the nominal output voltage to be equal to a second, higher, voltage magnitude.
    Type: Application
    Filed: January 18, 2019
    Publication date: June 13, 2019
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventor: Terence ORR
  • Patent number: 10243524
    Abstract: This application relates to amplifier circuits for amplifying an audio signal. An amplifier circuit (100) has a voltage regulator (201) for outputting a supply voltage to an amplifier (104). An output capacitor (103) coupled to an output node of the voltage regulator. The voltage regulator is operable in a voltage-control mode to maintain the output voltage (VS) at a nominal output voltage and in current-control mode to limit the input current drawn to exceed a defined limit. A controller (301) is operable in a first mode to define the nominal output voltage so as not to exceed a first voltage magnitude and in a second mode to define the nominal output voltage to be equal to a second, higher, voltage magnitude.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: March 26, 2019
    Assignee: Cirrus Logic, Inc.
    Inventor: Terence Orr
  • Publication number: 20180248525
    Abstract: This application relates to amplifier circuits for amplifying an audio signal. An amplifier circuit (100) has a voltage regulator (201) for outputting a supply voltage to an amplifier (104). An output capacitor (103) coupled to an output node of the voltage regulator. The voltage regulator is operable in a voltage-control mode to maintain the output voltage (VS) at a nominal output voltage and in current-control mode to limit the input current drawn to exceed a defined limit. A controller (301) is operable in a first mode to define the nominal output voltage so as not to exceed a first voltage magnitude and in a second mode to define the nominal output voltage to be equal to a second, higher, voltage magnitude.
    Type: Application
    Filed: February 23, 2018
    Publication date: August 30, 2018
    Applicant: Cirrus Logic International Semiconductor Ltd.
    Inventor: Terence ORR