Patents by Inventor Martti Harmoinen

Martti Harmoinen 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 for controlling the power to be transferred via a mains inverter
    Patent number: 5940286
    Abstract: The present invention relates to a method for controlling the power to be transferred via a mains inverter, the mains inverter (VVS) being arranged to transfer electric power in both directions between the n-phase AC main system (U) and the DC intermediate circuit (1).
    Type: Grant
    Filed: November 12, 1996
    Date of Patent: August 17, 1999
    Assignee: ABB Industry OY
    Inventors: Martti Harmoinen, Vesa Manninen, Pasi Pohjalainen, Pekka Tiitinen
  • High-power semiconductor module
    Patent number: 5811878
    Abstract: In a high-power semiconductor module (10), in which a plurality of first submodules (13, 14, 16, 17) are arranged in an electrically insulated manner in a common housing (12) and on a common cold plate (11) and are interconnected with one another, the first submodules (13, 14, 16, 17) each ?lacuna! individual controllable power semiconductor switches (13a), short-circuit-proof operation in conjunction with relatively high switching frequencies is made possible, with a relatively low current-carrying capacity and an increased withstand voltage, by virtue of the fact that the first submodules (13, 14, 16, 17) are connected in series within the module for the purpose of increasing the withstand voltage.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: September 22, 1998
    Assignee: Asea Brown Boveri AG
    Inventors: Martti Harmoinen, Thomas Stockmeier