Patents by Inventor Francesco Gennaro

Francesco Gennaro 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).

  • Switching power supply with voltage limiting device and control method thereof
    Publication number: 20070024258
    Abstract: A switching power supply includes input terminals, which receive a first voltage, and a switching converter stage, provided with a first switching device. The power supply further includes a second switching device, connected between the input terminals and the switching converter stage, and an activation device, associated with the second switching device for controlling the second switching device so as to limit a second voltage applied to the switching converter stage.
    Type: Application
    Filed: July 28, 2006
    Publication date: February 1, 2007
    Applicant: STMicroelectronics S.R.L.
    Inventors: Fabrizio Di Franco, Cosimo Leonardi, Rosario Stracquadaini, Francesco Gennaro
  • Driving circuit for electronically switched motors
    Patent number: 6734646
    Abstract: A driving circuit for electronically switched motors is provided. The driving circuit includes a supply voltage rectifying stage for providing a rectified supply voltage, first switching means for switching state based on output of a first control block, magnetic means for providing a magnetic flux according to the state of the first switching means, transmission diodes for transmitting an exciting current that flows through the magnetic means, first energy storing means for storing the exciting current, an energy return stage for transferring the energy stored in the first energy storing means to the rectifying stage, and energetic conversion means for receiving the energy stored in the energy storing means through second switching means controlled by a second control block, so as to provide a current as sinusoidal as possible.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: May 11, 2004
    Assignee: STMicroelectronics S.r.l.
    Inventors: Natale Aiello, Matteo Lo Presti, Alfio Consoli, Francesco Gennaro, Antonio Testa
  • Driving circuit for electronically switched motors
    Publication number: 20020089303
    Abstract: A driving circuit for electronically switched motors is provided. The driving circuit includes a supply voltage rectifying stage for providing a rectified supply voltage, first switching means for switching state based on output of a first control block, magnetic means for providing a magnetic flux according to the state of the first switching means, transmission diodes for transmitting an exciting current that flows through the magnetic means, first energy storing means for storing the exciting current, an energy return stage for transferring the energy stored in the first energy storing means to the rectifying stage, and energetic conversion means for receiving the energy stored in the energy storing means through second switching means controlled by a second control block, so as to provide a current as sinusoidal as possible.
    Type: Application
    Filed: December 4, 2001
    Publication date: July 11, 2002
    Applicant: STMICROELECTRONICS S.r.l.
    Inventors: Natale Aiello, Matteo Lo Presti, Alfio Consoli, Francesco Gennaro, Antonio Testa