Patents by Inventor Severine Marc

Severine Marc 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).

  • Electric converter for fuel cell
    Patent number: 7791915
    Abstract: The invention concerns an electric converter for fuel cell (P) comprising current inverter means (2), the electric converter comprising a voltage step-down chopper (1) mounted between the fuel cell (P) and the current inverter means (2), wherein, under the action of a command signal applied to the voltage step-down chopper (1): the value of the mean voltage at the input of the current inverter means is lowered to a threshold value (Vs) in the cell electrode activation zone, the value of the mean voltage at the input of the current inverter means (2) is maintained at the voltage value at the cell terminals (Vp) in the cell resistance zone, and the output current of the converter is limited when the output current from the current inverter means (2) reaches a maximum set value (Imax).
    Type: Grant
    Filed: February 4, 2004
    Date of Patent: September 7, 2010
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Daniel Chatroux, Severine Marc, Yvan Lausenaz
  • Electric converter for fuel cell
    Publication number: 20060170570
    Abstract: The invention concerns an electric converter for fuel cell (P) comprising current inverter means (2), the electric converter comprising a voltage step-down chopper (1) mounted between the fuel cell (P) and the current inverter means (2), wherein, under the action of a command signal applied to the voltage step-down chopper (1): the value of the mean voltage at the input of the current inverter means is lowered to a threshold value (Vs) in the cell electrode activation zone, the value of the mean voltage at the input of the current inverter means (2) is maintained at the voltage value at the cell terminals (Vp) in the cell resistance zone, and the output current of the converter is limited when the output current from the current inverter means (2) reaches a maximum set value (Imax).
    Type: Application
    Filed: February 4, 2004
    Publication date: August 3, 2006
    Applicant: Commissariart A L'Energie Atomique
    Inventors: Daniel Chatroux, Severine Marc, Yvan Lausenaz