Patents by Inventor Andreja ROJKO

Andreja ROJKO 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).

  • Self-diagnostic method of open-circuit faults, computerized survey system, and modular inverter
    Patent number: 12276707
    Abstract: Self-diagnostic method (100) of open-circuit fault, in power switching blocks of a modular inverter comprising a plurality (k=1 . . .
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: April 15, 2025
    Assignee: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Andreja Rojko
  • METHOD, DEVICE, AND SYSTEM FOR MONITORING CONDITION OF MOTOR
    Publication number: 20240061044
    Abstract: Provided are a method and a device for monitoring the condition of a motor, the motor being driven by a power source that provides signals to the motor. The device senses a motor signal and detects predetermined operating conditions of the motor, and if the motor operates in predetermined conditions, detects the instants of zero-crossing of the sensed signal, determines the time intervals between two zero-crossing instants, estimates plural envelopes of the determined time intervals in order to obtain an estimated pattern of envelopes, each envelope being determined over a number of determined time intervals, and determines from the operating conditions of the motor and the pattern of envelopes if the motor has a fault and/or a level of the fault.
    Type: Application
    Filed: July 9, 2021
    Publication date: February 22, 2024
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventors: Nicolas VOYER, Andreja ROJKO
  • SELF-DIAGNOSTIC METHOD OF OPEN-CIRCUIT FAULTS, COMPUTERIZED SURVEY SYSTEM, AND MODULAR INVERTER
    Publication number: 20230176142
    Abstract: Self-diagnostic method (100) of open-circuit fault, in power switching blocks of a modular inverter comprising a plurality (k=1 . . .
    Type: Application
    Filed: April 16, 2021
    Publication date: June 8, 2023
    Applicant: MITSUBISHI ELECTRIC CORPORATION
    Inventor: Andreja ROJKO