Patents by Inventor Jacques Geray

Jacques Geray 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).

  • DC-DC converter with chopping switch and transformer
    Patent number: 4660134
    Abstract: A DC-DC converter is provided, for example of the voltage booster type, comprising a switch controlled for chopping the input signal, a transformer whose primary winding receives the chopped signal and a means for rectifying the signal delivered by the secondary winding of the transformer.The switch is in parallel across a series assembly formed by the primary of the transformer and a capacitor. The rectifier means comprises a bridge for rectifying a current flowing in both directions.
    Type: Grant
    Filed: November 20, 1985
    Date of Patent: April 21, 1987
    Assignee: Auxilec
    Inventors: Jacques Geray, Gerard Monroy