Patents by Inventor Tony C. Aboumrad

Tony C. Aboumrad 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).

  • Soft switching three-level inverter
    Patent number: 5684688
    Abstract: A three-level NPC inverter topology including two auxiliary resonant commutation circuits which are controlled to clamp the voltage across each main inverter switch to zero voltage prior to altering the state of the switch in order to achieve soft switching of all main inverter switches while reducing output voltage harmonics and gradients.
    Type: Grant
    Filed: June 24, 1996
    Date of Patent: November 4, 1997
    Assignee: Reliance Electric Industrial Company
    Inventors: Didier G. Rouaud, Tony C. Aboumrad