Patents by Inventor Pierangelo Confaloneri

Pierangelo Confaloneri 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).

  • Output buffer with constant switching current
    Patent number: 6624672
    Abstract: The buffer has an output stage formed by two complementary MOS transistors connected so as to operate in phase opposition between the supply terminals and two driver stages having the input in common. Each driver stage has a first branch comprising a current-generator connected between the gate electrode of the transistor to be driven and a supply terminal and an electronic switch controlled by the input and connected between the same gate electrode and the other supply terminal, and a second branch which comprises, connected in series, a transistor connected as a diode and an electronic switch controlled by the output, and is arranged between the gate electrode of the transistor to be driven and a respective supply terminal. The buffer can control a load with a constant switching current, is simple in structure, and occupies a small area.
    Type: Grant
    Filed: December 21, 2001
    Date of Patent: September 23, 2003
    Assignee: STMicroelectronics S.r.l.
    Inventors: Pierangelo Confaloneri, Angelo Nagari, Germano Nicollini