Patents by Inventor Peter Erik Gabrielsson

Peter Erik Gabrielsson 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).

  • Resonant isolated active power factor correction (PFC) rectifier
    Patent number: 9479048
    Abstract: A method of driving an isolated converter includes opening a first bi-directional switch on an input side of a transformer, accepting current into a resonant capacitor connected across the first bi-directional switch to reduce voltage across the first bi-directional switch in response to said opening the first bi-directional switch, reversing current out of the resonant capacitor, and closing the first bi-directional switch as voltage across the first bi-directional switch is approximately zero volts.
    Type: Grant
    Filed: September 9, 2014
    Date of Patent: October 25, 2016
    Assignee: AEROVIRONMENT, INC.
    Inventors: Peter Erik Gabrielsson, Nader Michael Lotfy, Alexander Nelson Brooks
  • Resonant Isolated Active PFC Rectifier
    Publication number: 20150131337
    Abstract: A method of driving an isolated converter includes opening a first bi-directional switch on an input side of a transformer, accepting current into a resonant capacitor connected across the first bi-directional switch to reduce voltage across the first bi-directional switch in response to said opening the first bi-directional switch, reversing current out of the resonant capacitor, and closing the first bi-directional switch as voltage across the first bi-directional switch is approximately zero volts.
    Type: Application
    Filed: September 9, 2014
    Publication date: May 14, 2015
    Inventors: Peter Erik Gabrielsson, Nader Michael Lotfy, Alexander Nelson Brooks