Patents by Inventor Gerard D. F. Silvestre

Gerard D. F. Silvestre 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 regulator with dyssymetrical differential input stage
    Patent number: 5612611
    Abstract: A voltage regulator circuit having one input to receive a voltage to be limited, this input being connected to a ground by means of a limiting transistor. To control this transistor, a comparator and a dissymetrical differential stage are used. The differential stage receives the voltage to be limited and a reference voltage produced by means of a Zener diode, and supplies the comparator with voltages lower than those that it receives. The output of the comparator is connected to the control gate of the limiting transistor. This regulator circuit can advantageously be used to regulate a voltage produced by a voltage multiplier within an electrically programmable memory.
    Type: Grant
    Filed: April 19, 1995
    Date of Patent: March 18, 1997
    Assignee: SGS-Thomson Microelectronics S.A.
    Inventors: Sylvie Drouot, Gerard D. F. Silvestre