Patents by Inventor Luis ARNEDO

Luis ARNEDO 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).

  • NEUTRAL POINT CLAMPED MULTILEVEL CONVERTER
    Publication number: 20170359000
    Abstract: A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
    Type: Application
    Filed: August 29, 2017
    Publication date: December 14, 2017
    Inventors: Luis Arnedo, Marinko Kovacic, Yang Wang, Shashank Krishnamurthy
  • PWM controlled neutral point clamped multilevel converter
    Patent number: 9755546
    Abstract: A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: September 5, 2017
    Assignee: OTIS ELECATOR COMPANY
    Inventors: Luis Arnedo, Marinko Kovacic, Yang Wang, Shashank Krishnamurthy
  • Neutral Point Clamped Multilevel Converter
    Publication number: 20150303826
    Abstract: A neutral point clamped, multilevel level converter includes a DC voltage link; a first capacitor coupling one side of the DC link to a neutral point; a second capacitor coupling another side of the DC link to the neutral point; a plurality of phase legs, each phase leg including switches, each phase leg coupled to an AC node; a current sensor associated with each AC node; and a controller generating a PWM signal to control the switches, the controller generating a current zero sequence component in response to current sensed at each of the current sensors, the controller adjusting a modulation index signal in response to the current zero sequence component to produce the PWM signal.
    Type: Application
    Filed: November 21, 2012
    Publication date: October 22, 2015
    Inventors: Luis ARNEDO, Marinko KOVACIC, Yang WANG, Shashank KRISHNAMURTHY