Patents by Inventor Hyunkeun KU

Hyunkeun KU 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).

  • Motor driving apparatus and home appliance including the same
    Patent number: 9954473
    Abstract: The present invention relates to a motor driving apparatus and a home appliance including the same. A motor driving apparatus according to an embodiment of the present invention includes an inverter for converting a DC voltage of a DC-link capacitor into an AC voltage according to a switching operation and outputting the converted AC voltage to a motor; a DC-link resistor disposed between the DC-link capacitor and the inverter; and a controller for controlling the inverter based on a phase current sampled through the DC-link resistor, wherein the controller estimates a phase current based on the phase current sampled through the DC link resistor, in an interval in which phase current detection is not possible. Thereby, the phase current flowing through the motor may be accurately calculated using the DC link resistor.
    Type: Grant
    Filed: July 8, 2016
    Date of Patent: April 24, 2018
    Assignee: LG ELECTRONICS INC.
    Inventors: Jungmoon Je, Hansu Jung, Chungill Lee, Jangmok Kim, Hyunkeun Ku, Hanbeom Yeom
  • MOTOR DRIVING APPARATUS AND HOME APPLIANCE INCLUDING THE SAME
    Publication number: 20170070172
    Abstract: The present invention relates to a motor driving apparatus and a home appliance including the same. A motor driving apparatus according to an embodiment of the present invention includes an inverter for converting a DC voltage of a DC-link capacitor into an AC voltage according to a switching operation and outputting the converted AC voltage to a motor; a DC-link resistor disposed between the DC-link capacitor and the inverter; and a controller for controlling the inverter based on a phase current sampled through the DC-link resistor, wherein the controller estimates a phase current based on the phase current sampled through the DC link resistor, in an interval in which phase current detection is not possible. Thereby, the phase current flowing through the motor may be accurately calculated using the DC link resistor.
    Type: Application
    Filed: July 8, 2016
    Publication date: March 9, 2017
    Inventors: Jungmoon JE, Hansu JUNG, Chungill LEE, Jangmok KIM, Hyunkeun KU, Hanbeom YEOM