Patents by Inventor Dominique Villard

Dominique Villard 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).

  • Electronic trip device comprising a power supply control device
    Patent number: 5541499
    Abstract: The power supply control device comprises two regulating modes, linear regulation and chopping regulation. A current from a sensor, rectified by diodes, supplies a power supply circuit comprising a storage capacitor and a regulating transistor. A resistor and a control circuit measure the value of the current and select the regulating mode via a selector. If the current is lower than a preset threshold regulation is linear, the base of the transistor is connected to a Zener diode. When the current exceeds a preset threshold regulation is chopped and the base of the transistor is connected to the output of a comparator.
    Type: Grant
    Filed: May 10, 1994
    Date of Patent: July 30, 1996
    Assignee: Merlin Gerin
    Inventor: Dominique Villard