Patents by Inventor Leonardo Fragapane

Leonardo Fragapane 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).

  • Overvoltage protection device for the protection of a power transistor having a MOS control terminal
    Patent number: 5963407
    Abstract: A fast operating, electronic overvoltage protection device intended for a power transistor having at least one control terminal of the MOS type is disclosed. The device comprises a Zener diode associated with the power transistor and integrated together therewith in a semiconductor substrate, and a second transistor connected to the power transistor into a Darlington configuration and also connected to the Zener diode. The protection from overvoltages provided by the device is very fast in operation, and can be implemented in integrated form at reduced cost and without introducing parasitic elements.
    Type: Grant
    Filed: February 9, 1998
    Date of Patent: October 5, 1999
    Assignee: SGS-Thomson Microelectronics S.r.L.
    Inventors: Leonardo Fragapane, Romeo Letor