Patents by Inventor Paolo Brevetti

Paolo Brevetti 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, or dimmer, for regulating the power supply applied to a load
    Patent number: 6831426
    Abstract: The invention concerns an electronic device, or dimmer, for regulating the power supply applied to a load (4), the device comprising an insulated gate bipolar transistor or IGBT (1), the IGBT (1) having a first operating mode in which it is off and does not allow any current to pass, a second operating mode in which it is on and the current passing therein is substantially limited by characteristics of an external circuit connected to it, and a third linear region operating mode, in which the current passing therein is limited by a value proportional to the gate voltage, the IGBT (1) being connected to a rectifier bridge (2), apt to be connected to a load (4) and to a mains (5) connected in series to each other, the device further comprising a processing and controlling unit, the device being characterised in that said processing and controlling unit includes digital processing means (6, 7) and in that the device comprises ramp generating means (17, 18) driven by said processing and controlling unit, apt to g
    Type: Grant
    Filed: January 9, 2003
    Date of Patent: December 14, 2004
    Assignee: De Sisti Lighting S.p.A.
    Inventors: Paolo Brevetti, Fabio De Sisti, Andrea Torni
  • Electronic device, or dimmer, for regulating the power supply applied to a load
    Publication number: 20030168996
    Abstract: The invention concerns an electronic device, or dimmer, for regulating the power supply applied to a load (4), the device comprising an insulated gate bipolar transistor or IGBT (1), the IGBT (1) having a first operating mode in which it is off and does not allow any current to pass, a second operating mode in which it is on and the current passing therein is substantially limited by characteristics of an external circuit connected to it, and a third linear region operating mode, in which the current passing therein is limited by a value proportional to the gate voltage, the IGBT (1) being connected to a rectifier bridge (2), apt to be connected to a load (4) and to a mains (5) connected in series to each other, the device further comprising a processing and controlling unit, the device being characterised in that said processing and controlling unit includes digital processing means (6, 7) and in that the device comprises ramp generating means (17, 18) driven by said processing and controlling unit, apt to g
    Type: Application
    Filed: January 9, 2003
    Publication date: September 11, 2003
    Applicant: DE SISTI LIGHTING S.p.A.
    Inventors: Paolo Brevetti, Fabio De Sisti, Andrea Torni