Patents by Inventor Ii-Pyo Hong

Ii-Pyo Hong 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).

  • Apparatus for balancing voltages of DC link capacitor in inverter
    Patent number: 9812986
    Abstract: An apparatus for balancing a voltage of a direct current (DC) link capacitor of an inverter is provided. The apparatus of the present disclosure includes a switching unit connected to a node (a reference point) between the first and second resistors, which are connected in series to each other, and a node (a neutral point) between the first and second capacitors, which are connected in series to each other, and configured to short and open between the reference point and the neutral point, and a control unit configured to control the switching unit to short between the reference point and the neutral point when a voltage of the reference point (a reference point voltage) and a voltage of the neutral point (a neutral point voltage) are different from each other.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: November 7, 2017
    Assignee: LSIS CO., LTD.
    Inventor: Ii-Pyo Hong