Patents by Inventor Fabio Vallarino

Fabio Vallarino 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).

  • Electronic device for measuring a differential current in an electric line
    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
  • ELECTRONIC DEVICE FOR MEASURING A DIFFERENTIAL CURRENT IN AN ELECTRIC LINE
    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