Patents by Inventor Enrique Ledezma

Enrique Ledezma 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).

  • Modular multi-pulse transformer rectifier for use in asymmetric multi-level power converter
    Publication number: 20100072824
    Abstract: In one embodiment, the present invention includes a system having multiple modular transformers each including a phase-shifted primary winding coupled to an input power source and phase-shifted secondary windings each coupled to a power cell. The system further includes different phase output lines coupled to a load. These lines may include first, second and third phase output lines.
    Type: Application
    Filed: September 24, 2008
    Publication date: March 25, 2010
    Inventors: Mehdi Abolhassani, Ryan Edwards, Thomas Keister, Alex Skorcz, Enrique Ledezma, Chao Hsu Liao