Patents by Inventor Liana Luoni

Liana Luoni 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: 5883537
    Abstract: A circuit controllably and independently recycles the discharge current of a plurality of inductive loads that are connected between first and second power supply terminals. For each of the loads, an active element for driving the inductive load is provided, as well as a regulator for controlling the recycling of the discharge current from the respective load, which is connected to the control terminal of the active element and to a node for connection between the active element and the respective inductive load.
    Type: Grant
    Filed: July 30, 1996
    Date of Patent: March 16, 1999
    Assignee: SGS-Thomson Microelectronics S.r.l.
    Inventors: Liana Luoni, Fabio Marchio', Giorgio Rossi
  • Patent number: 5578956
    Abstract: The invention concerns a circuit for limiting the maximum current to be supplied to a load through a power MOS, being an improvement of the limiting circuitry which uses an equalizing capacitor. The addition of circuitry with a one-way current flow between a terminal of the equalizing capacitor and the gate terminal of the power MOS is effective to lower the voltage across the capacitor and to speed up its charging process, thereby making the current limiting action expected from the circuit a timely one. The circuitry which limits current flow to one direction may include a second MOS of the same type as the power MOS. In this way, any deviations of the power MOS from its designed operation, e.g. due to its manufacturing process variation and thermal drift phenomena, can also be compensated.
    Type: Grant
    Filed: March 14, 1996
    Date of Patent: November 26, 1996
    Assignee: SGS-Thomson Microelectronics, S.r.l.
    Inventors: Giorgio Rossi, Fabio Marchioo, Liana Luoni, Franco Cocetta