Patents by Inventor Luca Ghezzi

Luca Ghezzi 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: 11686758
    Abstract: An arc fault detection device for detecting an arc fault in an electric line includes a first terminal and a second terminal for connecting the arc fault detection device to a conductor of the electric line. A sensor is adapted for generating a sensor signal from a current through the electric line; and a controller is adapted for detecting the arc fault from the sensor signal. The sensor includes an inductor connected to the first terminal and the second terminal and a capacitor connected in parallel with the inductor. The inductor and the capacitor form a resonant circuit with a resonance frequency, the resonance frequency determining an impedance behavior of the resonant circuit; wherein the inductor and the capacitor are chosen such that the impedance behavior of the resonant circuit corresponds to a desired impedance behavior over a relevant frequency range of the current through the electric line.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: June 27, 2023
    Assignee: ABB Schweiz AG
    Inventors: Matija Varga, Yannick Maret, Agostino Butti, Antonio Currà, Vittorio Cozzi, Luca Ghezzi
  • Patent number: 11587856
    Abstract: Solid state switching device including: a pair of line terminals including first and second line terminals for electrical connection with a corresponding phase conductor of an electric line; a switching assembly including one or more solid state power switches, the switching assembly having a first and second power terminals electrically connected with the first and second lines terminals, respectively; a heat sink element in thermal coupling with the switching assembly to adsorb heat from the switching assembly; an additional heat extraction arrangement to extract heat from the switching assembly and convey at least a portion of the adsorbed heat along the phase conductor through the first and second line terminals.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: February 21, 2023
    Assignee: ABB Schweiz AG
    Inventors: Paolo Antonello, Luca Ghezzi, Yu Du, Taosha Jiang, Rostan Rodrigues
  • Publication number: 20220357367
    Abstract: A calibration method for calibrating a magnetizable core, wherein the magnetizable core is coupled to a magnetic transducer; the method comprising applying a pulse of magnetomotive force to the core such that a distinct value of remanence is produced in the core, wherein the value of remanence in the core depends on a strength of the pulse.
    Type: Application
    Filed: July 20, 2022
    Publication date: November 10, 2022
    Applicant: ABB E-mobility B.V.
    Inventors: Adrian Hozoi, Luca Ghezzi, Gertjan Koolen, Ulf Embretsen
  • Publication number: 20220091172
    Abstract: An arc fault detection device for detecting an arc fault in an electric line includes a first terminal and a second terminal for connecting the arc fault detection device to a conductor of the electric line. A sensor is adapted for generating a sensor signal from a current through the electric line; and a controller is adapted for detecting the arc fault from the sensor signal. The sensor includes an inductor connected to the first terminal and the second terminal and a capacitor connected in parallel with the inductor. The inductor and the capacitor form a resonant circuit with a resonance frequency, the resonance frequency determining an impedance behavior of the resonant circuit; wherein the inductor and the capacitor are chosen such that the impedance behavior of the resonant circuit corresponds to a desired impedance behavior over a relevant frequency range of the current through the electric line.
    Type: Application
    Filed: September 24, 2021
    Publication date: March 24, 2022
    Applicant: ABB Schweiz AG
    Inventors: Matija Varga, Yannick Maret, Agostino Butti, Antonio Currà, Vittorio Cozzi, Luca Ghezzi
  • Publication number: 20210118777
    Abstract: Solid state switching device including: a pair of line terminals including first and second line terminals for electrical connection with a corresponding phase conductor of an electric line; a switching assembly including one or more solid state power switches, the switching assembly having a first and second power terminals electrically connected with the first and second lines terminals, respectively; a heat sink element in thermal coupling with the switching assembly to adsorb heat from the switching assembly; an additional heat extraction arrangement to extract heat from the switching assembly and convey at least a portion of the adsorbed heat along the phase conductor through the first and second line terminals.
    Type: Application
    Filed: March 8, 2018
    Publication date: April 22, 2021
    Inventors: Paolo Antonello, Luca Ghezzi, Yu Du, Taosha Jiang, Rostan Rodrigues
  • Patent number: 10923900
    Abstract: An electronic protection device for a LV electric line, the protection device being provided with a control unit comprising a controller including digital data processing resources clocked by a first clock source adapted to provide a first flock signal with a first nominal clock frequency. The control unit comprises a clock testing arrangement adapted to check whether the first clock source is properly operating.
    Type: Grant
    Filed: June 14, 2018
    Date of Patent: February 16, 2021
    Assignee: ABB Schweiz AG
    Inventors: Agostino Butti, Antonio Currá, Luca Ghezzi, Vittorio Cozzi
  • Publication number: 20180366935
    Abstract: An electronic protection device for a LV electric line, the protection device being provided with a control unit comprising a controller including digital data processing resources clocked by a first clock source adapted to provide a first flock signal with a first nominal clock frequency. The control unit comprises a clock testing arrangement adapted to check whether the first clock source is properly operating.
    Type: Application
    Filed: June 14, 2018
    Publication date: December 20, 2018
    Inventors: Agostino Butti, Antonio Currà, Luca Ghezzi, Vittorio Cozzi
  • Patent number: 9651580
    Abstract: An electronic device (1) for measuring a differential current (ID) in an electric line (100) having a plurality of conductors, said electronic device comprising: a sensing circuit (2) comprising: a current transformer (21) having a magnetic core (211) through which the conductors of said electric line pass, a secondary winding (212) and an excitation winding (213) along which an excitation current (IE) circulates to polarize said magnetic core (211); an output circuit section (22) electrically connected to said secondary winding (212) and configured to provide a first signal (V1).
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: May 16, 2017
    Assignee: ABB S.P.A.
    Inventors: Luca Ghezzi, Fabio Vallarino, Paolo Antonello
  • Publication number: 20160154028
    Abstract: An electronic device (1) for measuring a differential current (ID) in an electric line (100) having a plurality of conductors, said electronic device comprising: a sensing circuit (2) comprising: a current transformer (21) having a magnetic core (211) through which the conductors of said electric line pass, a secondary winding (212) and an excitation winding (213) along which an excitation current (IE) circulates to polarize said magnetic core (211); an output circuit section (22) electrically connected to said secondary winding (212) and configured to provide a first signal (V1).
    Type: Application
    Filed: November 20, 2015
    Publication date: June 2, 2016
    Inventors: Luca Ghezzi, Fabio Vallarino, Paolo Antonello