Patents by Inventor John Shafran

John Shafran 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).

  • Method and apparatus for switched-mode power conversion at radio frequencies
    Publication number: 20050286278
    Abstract: A switched mode dc-dc converter enables increases in switching frequency over conventional architectures. In one embodiment, a dc-dc converter has a Vernier-regulated architecture having unregulated cells and a regulating cell coupled to a controller. In another embodiment, a dc-dc-converter has a cell-modulation-regulated architecture.
    Type: Application
    Filed: April 19, 2005
    Publication date: December 29, 2005
    Inventors: David Perreault, Juan Rivas, Riad Wahby, John Shafran