Patents by Inventor Tuomas Esko Aaltio

Tuomas Esko Aaltio 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-level inverter apparatus and methods using variable overcurrent response
    Patent number: 9225262
    Abstract: An inverter includes a multilevel bridge circuit. A control circuit is operatively coupled to the multilevel bridge circuit and configured to detect an overcurrent for an output of the inverter, to generate a measure of a duration of the overcurrent and to selectively put an output of the bridge circuit in a first impedance state or a second impedance state based on the measure. The first and second impedance states may provide respective first and second impedances between the bridge circuit output and a neutral.
    Type: Grant
    Filed: June 29, 2012
    Date of Patent: December 29, 2015
    Assignee: Eaton Corporation
    Inventor: Tuomas Esko Aaltio
  • MULTI-LEVEL INVERTER APPARATUS AND METHODS USING VARIABLE OVERCURRENT RESPONSE
    Publication number: 20140003103
    Abstract: An inverter includes a multilevel bridge circuit. A control circuit is operatively coupled to the multilevel bridge circuit and configured to detect an overcurrent for an output of the inverter, to generate a measure of a duration of the overcurrent and to selectively put an output of the bridge circuit in a first impedance state or a second impedance state based on the measure. The first and second impedance states may provide respective first and second impedances between the bridge circuit output and a neutral.
    Type: Application
    Filed: June 29, 2012
    Publication date: January 2, 2014
    Inventor: Tuomas Esko Aaltio