Patents by Inventor Piotr Szczupak

Piotr Szczupak 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 and control device for controlling a commutation process of a load current between switching modules
    Patent number: 10651719
    Abstract: A method and a device for controlling a commutation process of a load current between two switching modules are disclosed that each have a MOSFET that can be controlled by a gate-source voltage, and an intrinsic-body inverse diode. To reduce oscillations in the down-commutation of the inverse diodes caused by parasitic circuit parameters, after switching off one of the switching modules, the gate-source control voltage applied to this switching module is temporarily switched off until being increased again the vicinity of the threshold voltage for switching on the MOSFET, before and while the other switching module is switched on, in order to commutate the current from the inverse diode of the one switching module to the MOSFET of the other switching module.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: May 12, 2020
    Assignee: GE ENERGY POWER CONVERSION TECHNOLOGY LIMITED
    Inventors: Hendrik Gloes, Martin Geske, Piotr Szczupak
  • METHOD AND DEVICE FOR CONTROLLING MOSFET SWITCHING MODULES
    Publication number: 20190199193
    Abstract: A method and a device for controlling a commutation process of a load current between two switching modules are disclosed that each have a MOSFET that can be controlled by a gate-source voltage, and an intrinsic-body inverse diode. To reduce oscillations in the down-commutation of the inverse diodes caused by parasitic circuit parameters, after switching off one of the switching modules, the gate-source control voltage applied to this switching module is temporarily switched off until being increased again the vicinity of the threshold voltage for switching on the MOSFET, before and while the other switching module is switched on, in order to commutate the current from the inverse diode of the one switching module to the MOSFET of the other switching module.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 27, 2019
    Inventors: Hendrik Gloes, Martin Geske, Piotr Szczupak