Patents by Inventor Yves Servet

Yves Servet 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).

  • Autocontrol circuit for a resonance undulator
    Patent number: 4891745
    Abstract: An autocontrol circuit for a resonance current or voltage undulator comprising a power supply, a parallel or series resonant circuit connected to the supply, and circuit elements (K.sub.1 to K.sub.4) for reversing the polarity of the resonant circuit's connection to the power supply. The power supply comprises a DC voltage generator and an inductive or capacitive element (2). The autocontrol circuit comprises circuit elements for detecting the voltages or currents of both the DC voltage generator and the output of the power supply. Differences between these two measured quantities are related to the load variations of the resonant circuit. The autocontrol circuit also comprises a comparator (11) for determining these differences, and circuit elements to use the comparator's output to produce signals which control switches (K.sub.1 to K.sub.4) which determine the polarity of the resonant circuit's connection to the power supply.
    Type: Grant
    Filed: April 26, 1988
    Date of Patent: January 2, 1990
    Assignees: Electricite de France: Service National, Ecole Superieure d'Ingenieurs de Marseille S.A., Compagnie Francaise d'Electrothemie Industrielle (CFEI)
    Inventors: Dominique Lafore, Joel Redoutey, Yves Servet