Patents by Inventor Yuta TSUKUMA

Yuta TSUKUMA 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).

  • Level shift circuit
    Patent number: 11777494
    Abstract: A level shift transistor of a first conductivity type configured to level shift a signal from a primary side circuit to a secondary side circuit between the primary side circuit having a primary side reference potential as reference and the secondary side circuit having a secondary side reference potential independent from the primary side reference potential as reference, a diode connected in a forward direction between a first main electrode of the level shift transistor and the secondary side circuit, a capacitor connected in parallel to the diode, and an inverter configured to invert the signal are provided. A control electrode of the level shift transistor is connected to a primary side power supply of the primary side circuit, and a second main electrode thereof is connected to an output of the inverter. The inverter operates between the primary side reference potential and the primary side power supply.
    Type: Grant
    Filed: May 12, 2022
    Date of Patent: October 3, 2023
    Assignee: Mitsubishi Electric Corporation
    Inventors: Yuta Tsukuma, Hiroshi Yoshida
  • LEVEL SHIFT CIRCUIT
    Publication number: 20230042745
    Abstract: A level shift transistor of a first conductivity type configured to level shift a signal from a primary side circuit to a secondary side circuit between the primary side circuit having a primary side reference potential as reference and the secondary side circuit having a secondary side reference potential independent from the primary side reference potential as reference, a diode connected in a forward direction between a first main electrode of the level shift transistor and the secondary side circuit, a capacitor connected in parallel to the diode, and an inverter configured to invert the signal are provided. A control electrode of the level shift transistor is connected to a primary side power supply of the primary side circuit, and a second main electrode thereof is connected to an output of the inverter. The inverter operates between the primary side reference potential and the primary side power supply.
    Type: Application
    Filed: May 12, 2022
    Publication date: February 9, 2023
    Applicant: Mitsubishi Electric Corporation
    Inventors: Yuta TSUKUMA, Hiroshi YOSHIDA