Patents by Inventor Mika Ikonen

Mika Ikonen 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).

  • Power level balance of frequency converters connected in parallel
    Patent number: 7872885
    Abstract: A method and a parallel connection arrangement for equalizing the output powers of power converter units (INU11, INU12), in which power converter units is a semiconductor switch bridge controlled with pulse width modulation, and in which is a control unit arrangement (CU1, CU2) for forming control pulses, with which the semiconductor switches are controlled. The control unit arrangement delays the falling edge of the control pulses of at least one semiconductor switch of at least one power converter unit.
    Type: Grant
    Filed: August 20, 2007
    Date of Patent: January 18, 2011
    Assignee: Vacon OYJ
    Inventors: Toni Itkonen, Mika Ikonen, Kimmo Rauma, Stefan Strandberg, Jorma Vesti
  • Power level balance of frequency converters connected in parallel
    Publication number: 20080049462
    Abstract: A method and a parallel connection arrangement for equalizing the output powers of power converter units (INU11, INU12), in which power converter units is a semiconductor switch bridge controlled with pulse width modulation, and in which is a control unit arrangement (CU1, CU2) for forming control pulses, with which the semiconductor switches are controlled. The control unit arrangement delays the falling edge of the control pulses of at least one semiconductor switch of at least one power converter unit.
    Type: Application
    Filed: August 20, 2007
    Publication date: February 28, 2008
    Inventors: Toni Itkonen, Mika Ikonen, Kimmo Rauma, Stefan Strandberg, Jorma Vesti