Patents by Inventor Songcheol LEE

Songcheol LEE 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).

  • COMPLEX MOTOR AND HEATER DRIVING CIRCUIT, AND CONTROL SYSTEM THEREFOR
    Publication number: 20230339291
    Abstract: The present invention relates to a control circuit, and more particularly, to a complex motor and heater driving circuit capable of separately or simultaneously controlling a three-phase motor and a heater and a control system therefor.
    Type: Application
    Filed: September 17, 2021
    Publication date: October 26, 2023
    Inventors: Songcheol LEE, Min Sik KIM, Sang Hun KIM, Tae Wan KIM, Pureunsam PARK, Kyung Won AN