Patents by Inventor Francisco J. Chivite-Zabalza

Francisco J. Chivite-Zabalza 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).

  • Multi-pulse converter circuits
    Patent number: 7148661
    Abstract: An AC to DC converter with harmonic suppression is provided. The harmonic suppression is provided by forcing an instantaneous current conflict between series connected rectifier bridges 54, 80, such that a voltage waveform at 6 times the AC supply frequency of the AC supply is automatically generated. This waveform is then injected via a injection circuit to give harmonic cancellation.
    Type: Grant
    Filed: October 20, 2004
    Date of Patent: December 12, 2006
    Assignee: Goodrich Control Systems Limited
    Inventors: David Trainer, Andrew J. Forsyth, Francisco J. Chivite-Zabalza