Patents by Inventor Giovanni Luca Torrisi

Giovanni Luca Torrisi 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: 6483280
    Abstract: An electronic circuit is for optimizing or reducing switching losses in current-driven power devices and includes a switching power device connected to an electric load. The power devices has at least one control terminal arranged to receive a predetermined drive current value produced by a first current generator. The control terminal also receives an additional drive current portion produced by a second independent current generator. Advantageously, the electronic circuit includes a control circuit for controlling a switch connected between the second current generator and the control terminal of the switching power device during the turn-on and turn-off phases of the power device.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: November 19, 2002
    Assignee: STMicroelectronics S.r.l.
    Inventors: Atanasio La Barbera, Giovanni Luca Torrisi
  • Publication number: 20020109417
    Abstract: A driver circuit drives a power element connected to an inductive load. The driver circuit includes an output terminal, and a first current generator is connected between a voltage reference and the output terminal for providing a first charge current to a control terminal of the power element, which is connected to the output terminal. The driver circuit also includes a second current generator connected in parallel with the first current generator. The second current generator is connected between the voltage reference and the output terminal, and provides the control terminal with a second charge current dependent on a voltage present at the input terminal. The input terminal is connected to a conduction terminal of the power element.
    Type: Application
    Filed: January 15, 2002
    Publication date: August 15, 2002
    Applicant: STMicroelectronics S.r.l.
    Inventors: Giovanni Luca Torrisi, Antonino Torres
  • Publication number: 20020101182
    Abstract: An electronic circuit is for the gradual start-up of electric loads, particularly halogen lamps. The circuit may include a power device having an output terminal connected to the electric load and having at least one control terminal receiving a predetermined driving current value. The circuit may further include a comparator having a first input terminal coupled to the power device output and a second input terminal kept at a reference potential. The comparator output may be connected to a controlled switch inserted upstream of the control terminal to control the opening of the switch and adjust the start-up phase of the power device according to the value of the reference potential.
    Type: Application
    Filed: October 1, 2001
    Publication date: August 1, 2002
    Applicant: STMicroelectronics S.r.l.
    Inventors: Natale Aiello, Atanasio La Barbera, Giovanni Luca Torrisi
  • Publication number: 20020085331
    Abstract: An electronic thermal protection circuit is for high currents which can occur in the start-up phase in lighting converters. The circuit is associated with a power device having an output terminal connected to an electric load and at least one control terminal receiving a predetermined driving current value by a driving circuit portion. Advantageously, an integrated temperature sensor is provided to detect the temperature of the power device, and an output stage is connected downstream of the sensor to switch off the driving circuit portion when a predetermined operation temperature is exceeded.
    Type: Application
    Filed: October 2, 2001
    Publication date: July 4, 2002
    Applicant: STMicroelectronics S.r.l.
    Inventors: Natale Aiello, Atanasio La Barbera, Vincenzo Randazzo, Giovanni Luca Torrisi
  • Publication number: 20020074981
    Abstract: An electronic circuit is for optimizing or reducing switching losses in current-driven power devices and includes a switching power device connected to an electric load. The power devices has at least one control terminal arranged to receive a predetermined drive current value produced by a first current generator. The control terminal also receives an additional drive current portion produced by a second independent current generator. Advantageously, the electronic circuit includes a control circuit for controlling a switch connected between the second current generator and the control terminal of the switching power device during the turn-on and turn-off phases of the power device.
    Type: Application
    Filed: October 1, 2001
    Publication date: June 20, 2002
    Applicant: STMicroelectronics S.r.l.
    Inventors: Atanasio La Barbera, Giovanni Luca Torrisi