Patents by Inventor Daisuke MATSUMURO

Daisuke MATSUMURO 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).

  • Control device of AC rotating electrical machine
    Patent number: 10608569
    Abstract: A control device of an AC rotating electrical machine includes: a midpoint potential detection unit 12 that detects, for respective phases, midpoint potentials 43, 44, 45 of upper switching elements 41 and lower switching elements 42 of an inverter circuit 20; a phase current detection unit 23 that detects a phase current of each phase of an AC rotating electrical machine 3; and a CPU 11 that calculates a current estimated value Idc of DC current that is input from a DC power supply 2 to the inverter circuit 20, on the basis of the detected midpoint potential of each phase and the phase current of each phase.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: March 31, 2020
    Assignee: Mitsubishi Electric Corporation
    Inventors: Daisuke Matsumuro, Keiichi Enoki, Yoshimasa Nishijima, Masutaka Watanabe, Shingo Harada, Yasukazu Murata
  • CONTROL DEVICE OF AC ROTATING ELECTRICAL MACHINE
    Publication number: 20180278191
    Abstract: A control device of an AC rotating electrical machine includes: a midpoint potential detection unit 12 that detects, for respective phases, midpoint potentials 43, 44, 45 of upper switching elements 41 and lower switching elements 42 of an inverter circuit 20; a phase current detection unit 23 that detects a phase current of each phase of an AC rotating electrical machine 3; and a CPU 11 that calculates a current estimated value Idc of DC current that is input from a DC power supply 2 to the inverter circuit 20, on the basis of the detected midpoint potential of each phase and the phase current of each phase.
    Type: Application
    Filed: August 29, 2017
    Publication date: September 27, 2018
    Applicant: Mitsubishi Electric Corporation
    Inventors: Daisuke MATSUMURO, Keiichi ENOKI, Yoshimasa NISHIJIMA, Masutaka WATANABE, Shingo HARADA, Yasukazu MURATA