Patents by Inventor Leonardo Pedone

Leonardo Pedone 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).

  • Patent number: 12105143
    Abstract: A digital-to-analog converter (DAC) includes a switching network and built-in-self-test (BIST) circuitry. The DAC, in operation, generates analog output signals in response to input codes of a set of input codes of the DAC. The BIST circuitry sequentially applies codes of a determined subset of codes of the set of input codes to test the plurality of switches. The determined subset of codes has fewer codes than the set of input codes. The BIST circuitry detects failures of switches of the plurality of switches based on responses of the DAC to the applied codes. In response to detecting a failure of a switch, the BIST generates a signal indicating a failure of the switching network.
    Type: Grant
    Filed: October 17, 2022
    Date of Patent: October 1, 2024
    Assignee: STMICROELECTRONICS S.r.l.
    Inventors: Leonardo Pedone, Simone Scaduto, Rossella Gaudiano, Matteo Brivio, Matteo Venturelli
  • Patent number: 12021454
    Abstract: A control circuit for a multiphase buck converter includes a regulator circuit and a plurality of phase control circuits. The regulator circuit generates a regulation signal based on a feedback signal and a reference signal, and each phase control circuit receives a current sense signal and generates a respective PWM signal based on the respective current sense signal and the regulation signal. The control circuit includes a first selector circuit and a second selector circuit configured to receive a selection signal and selectively connect each phase control circuit of a subset of the phase control circuits to a PWM signal for driving a respective stage of the multiphase buck converter, and to a current sense signal provided by the respective stage of the multiphase buck converter. A selection control circuit generates the selection signal in order to connect the phase control circuits to different stages of the multiphase buck converter.
    Type: Grant
    Filed: April 27, 2022
    Date of Patent: June 25, 2024
    Assignee: STMicroelectronics S.r.l.
    Inventors: Gerardo Castellano, Leonardo Pedone, Filippo Minnella, Marcello Raimondi
  • Publication number: 20230140765
    Abstract: A digital-to-analog converter (DAC) includes a switching network and built-in-self-test (BIST) circuitry. The DAC, in operation, generates analog output signals in response to input codes of a set of input codes of the DAC. The BIST circuitry sequentially applies codes of a determined subset of codes of the set of input codes to test the plurality of switches. The determined subset of codes has fewer codes than the set of input codes. The BIST circuitry detects failures of switches of the plurality of switches based on responses of the DAC to the applied codes. In response to detecting a failure of a switch, the BIST generates a signal indicating a failure of the switching network.
    Type: Application
    Filed: October 17, 2022
    Publication date: May 4, 2023
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Leonardo PEDONE, Simone SCADUTO, Rossella GAUDIANO, Matteo BRIVIO, Matteo VENTURELLI
  • Patent number: 11557891
    Abstract: A circuit includes comparator circuitry to sense a current through a load and compare the intensity of the current with a comparison threshold which can be set to a first, lower threshold value and a second, higher threshold value. Logic circuitry receives from the comparator circuitry a comparison signal having a first value or a second value based on whether the intensity is lower or higher than the comparison threshold. The logic circuitry is configured to assert a first overcurrent event signal or a second overcurrent event signal based on the comparison signal having the first value or the second value and the comparison threshold set to the first or second threshold value.
    Type: Grant
    Filed: November 9, 2021
    Date of Patent: January 17, 2023
    Assignee: STMicroelectronics S.r.l.
    Inventors: Nicola Errico, Antonio Giordano, Orazio Pennisi, Leonardo Pedone, Luca Finazzi
  • Publication number: 20220360177
    Abstract: A control circuit for a multiphase buck converter includes a regulator circuit and a plurality of phase control circuits. The regulator circuit generates a regulation signal based on a feedback signal and a reference signal, and each phase control circuit receives a current sense signal and generates a respective PWM signal based on the respective current sense signal and the regulation signal. The control circuit includes a first selector circuit and a second selector circuit configured to receive a selection signal and selectively connect each phase control circuit of a subset of the phase control circuits to a PWM signal for driving a respective stage of the multiphase buck converter, and to a current sense signal provided by the respective stage of the multiphase buck converter. A selection control circuit generates the selection signal in order to connect the phase control circuits to different stages of the multiphase buck converter.
    Type: Application
    Filed: April 27, 2022
    Publication date: November 10, 2022
    Applicant: STMicroelectronics S.r.l.
    Inventors: Gerardo CASTELLANO, Leonardo PEDONE, Filippo MINNELLA, Marcello RAIMONDI
  • Publication number: 20220190585
    Abstract: A circuit includes comparator circuitry to sense a current through a load and compare the intensity of the current with a comparison threshold which can be set to a first, lower threshold value and a second, higher threshold value. Logic circuitry receives from the comparator circuitry a comparison signal having a first value or a second value based on whether the intensity is lower or higher than the comparison threshold. The logic circuitry is configured to assert a first overcurrent event signal or a second overcurrent event signal based on the comparison signal having the first value or the second value and the comparison threshold set to the first or second threshold value.
    Type: Application
    Filed: November 9, 2021
    Publication date: June 16, 2022
    Inventors: Nicola Errico, Antonio Giordano, Orazio Pennisi, Leonardo Pedone, Luca Finazzi