Patents by Inventor Fabiana Da Silveira Cavalcante

Fabiana Da Silveira Cavalcante 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).

  • Controller circuit and system having such a controller circuit
    Patent number: 8149599
    Abstract: A controller circuit is specified, having a step-up controller, a resonant converter connected downstream of the step-up controller on the output side, a transformer, a rectifier, which rectifier is connected to the secondary winding of the transformer on the input side, and a CLL resonant circuit connected to the resonant converter and to the primary winding of the transformer, which CLL resonant circuit has a resonance capacitance and a first and a second resonance inductance. In order to reduce the switching losses, the CLL resonant circuit is embodied as a “T” circuit.
    Type: Grant
    Filed: December 16, 2008
    Date of Patent: April 3, 2012
    Assignee: ABB Research Ltd
    Inventors: Antonio Coccia, Francisco Canales, Gerold Knapp, Marcel Merk, Fabiana Da Silveira Cavalcante
  • CONTROLLER CIRCUIT AND SYSTEM HAVING SUCH A CONTROLLER CIRCUIT
    Publication number: 20090154200
    Abstract: A controller circuit is specified, having a step-up controller, a resonant converter connected downstream of the step-up controller on the output side, a transformer, a rectifier, which rectifier is connected to the secondary winding of the transformer on the input side, and a CLL resonant circuit connected to the resonant converter and to the primary winding of the transformer, which CLL resonant circuit has a resonance capacitance and a first and a second resonance inductance. In order to reduce the switching losses, the CLL resonant circuit is embodied as a “T” circuit.
    Type: Application
    Filed: December 16, 2008
    Publication date: June 18, 2009
    Applicant: ABB Research Ltd
    Inventors: Antonio Coccia, Francisco Canales, Gerold Knapp, Marcel Merk, Fabiana Da Silveira Cavalcante