Patents by Inventor Marek Musak

Marek Musak 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).

  • Apparatus and method for determining electrical characteristics of an electric motor
    Patent number: 11391776
    Abstract: A system for determining electrical characteristics of an electric load can comprise a signal modulation circuit that can include a first integral controller configured to control AC reference voltage based on a requested maximum AC current and an estimated maximum AC current, a second integral controller configured to control DC reference voltage based on a requested DC current and an estimated DC current, a signal demodulation circuit including an AC current estimation circuit configured to generate the estimated maximum AC current for the signal modulation circuit, a DC current estimation circuit configured to generate the estimated DC current for the signal modulation circuit, and a resistance and inductance (RL) estimation circuit configured to determine inductance of the electric load based on the estimated maximum AC current and phase shift, wherein the estimated maximum AC current is a value lower than a DC offset current value.
    Type: Grant
    Filed: December 17, 2020
    Date of Patent: July 19, 2022
    Assignee: NXP USA, Inc.
    Inventors: Marek Musak, Marek Stulrajter, Tomas Fedor
  • APPARATUS AND METHOD FOR DETERMINING ELECTRICAL CHARACTERISTICS OF AN ELECTRIC MOTOR
    Publication number: 20220196741
    Abstract: A system for determining electrical characteristics of an electric load can comprise a signal modulation circuit that can include a first integral controller configured to control AC reference voltage based on a requested maximum AC current and an estimated maximum AC current, a second integral controller configured to control DC reference voltage based on a requested DC current and an estimated DC current, a signal demodulation circuit including an AC current estimation circuit configured to generate the estimated maximum AC current for the signal modulation circuit, a DC current estimation circuit configured to generate the estimated DC current for the signal modulation circuit, and a resistance and inductance (RL) estimation circuit configured to determine inductance of the electric load based on the estimated maximum AC current and phase shift, wherein the estimated maximum AC current is a value lower than a DC offset current value.
    Type: Application
    Filed: December 17, 2020
    Publication date: June 23, 2022
    Inventors: Marek Musak, Marek Stulrajter, Tomas Fedor