Patents by Inventor Jean-Francois Gautheron

Jean-Francois Gautheron 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).

  • Power supply with chopping circuit
    Patent number: 4025862
    Abstract: An improved power supply apparatus for providing a stabilized low voltage d.c. output from the a.c. mains, comprises two distinct chopper stages, each having its regulation control loop which operates by duty cycle control. The first loop includes a current limiter and provides a rough regulation of the output voltage as a function of the mains variations, whereas the second loop provides a fine regulation of the output voltage as a function of the load variations, and isolation with respect to the load.
    Type: Grant
    Filed: December 4, 1975
    Date of Patent: May 24, 1977
    Assignee: La Telemecanique Electrique
    Inventor: Jean-Francois Gautheron