Patents by Inventor Arkadiusz Kulka

Arkadiusz Kulka 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).

  • Inverter system
    Patent number: 10284115
    Abstract: An inverter system includes an input inverter including a positive and a negative DC input terminals and first and second AC output terminals; and a bidirectional inverter device, including a first bidirectional subinverter and a second bidirectional subinverter. The first and second bidirectional subinverters have DC terminals that are interconnected in parallel with a DC power storage device. The first bidirectional subinverter have first and second AC terminals. The first AC terminal is connected to the first AC output terminal of the input inverter. The second bidirectional subinverter have first and second AC terminals. The first AC terminal is connected to the second AC output terminal of the input inverter. The second AC terminal of the first bidirectional subinverter and the second AC terminal of the second bidirectional subinverter are interconnected.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: May 7, 2019
    Assignee: Eltek AS
    Inventors: Arkadiusz Kulka, Kjetil Boysen
  • INVERTER SYSTEM
    Publication number: 20170063254
    Abstract: An inverter system includes an input inverter including a positive and a negative DC input terminals and first and second AC output terminals; and a bidirectional inverter device, including a first bidirectional subinverter and a second bidirectional subinverter. The first and second bidirectional subinverters have DC terminals that are interconnected in parallel with a DC power storage device. The first bidirectional subinverter have first and second AC terminals. The first AC terminal is connected to the first AC output terminal of the input inverter. The second bidirectional subinverter have first and second AC terminals. The first AC terminal is connected to the second AC output terminal of the input inverter. The second AC terminal of the first bidirectional subinverter and the second AC terminal of the second bidirectional subinverter are interconnected.
    Type: Application
    Filed: February 25, 2015
    Publication date: March 2, 2017
    Applicant: Eltek AS
    Inventors: Arkadiusz Kulka, Kjetil Boysen
  • Method for controlling an H-bridge inverter
    Patent number: 9225236
    Abstract: The invention relates to a H-bridge inverter and a method for controlling a H-bridge converter. The H-bridge inverter (1) comprises first and second DC terminals (Tdc1, Tdc2), first and second AC terminals (Tac1, Tac2), a first switch (S1), a second switch (S2), a third switch (S3) and a fourth switch (S4). The inverter further comprises a control circuit for controlling the switching of the first, second, third and fourth switches (S11, S2, S3, S4).
    Type: Grant
    Filed: March 7, 2013
    Date of Patent: December 29, 2015
    Assignee: Eltek AS
    Inventor: Arkadiusz Kulka
  • Method for controlling an H-bridge inverter
    Publication number: 20150131347
    Abstract: The invention relates to a H-bridge inverter and a method for controlling a H-bridge converter. The H-bridge inverter (1) comprises first and second DC terminals (Tdc1, Tdc2), first and second AC terminals (Tac1, Tac2), a first switch (S1), a second switch (S2), a third switch (S3) and a fourth switch (S4). The inverter further comprises a control circuit for controlling the switching of the first, second, third and fourth switches (S11, S2, S3, S4).
    Type: Application
    Filed: March 7, 2013
    Publication date: May 14, 2015
    Inventor: Arkadiusz Kulka