Patents by Inventor Byung H. Min

Byung H. Min 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).

  • Driving methods and driving circuits for brushless DC motors without rotor position sensors
    Patent number: 5166583
    Abstract: A sensorless and brushless DC motor in which phase-corresponding coils are turned on at an electric angle of 180.degree..The driving circuit of the DC motor includes comparators for outputting position detection signals, comparators for outputting turn-on signals, power transistors for turning on phase-corresponding coils, a rotation direction control section, a charge/discharge control section, a charge/discharge section, a turn-off signal generating section, and transistors for forcedly turning off the power transistors.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: November 24, 1992
    Assignees: Goldstar Co., Ltd., Goldstar Electron Co., Ltd.
    Inventors: Byung H. Min, Seung K. Park