Patents by Inventor Hye Seong Heo

Hye Seong Heo 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 controlling inverter current and method of operating the same
    Patent number: 9735704
    Abstract: Provided is an apparatus for controlling an inverter current, and more particularly, to a current controlling apparatus for controlling current of a switching element of an inverter that outputs a 3-phase alternating current. The apparatus for controlling an inverter current includes: an inverter comprising a plurality of current detection switching elements capable of detecting switched and output current, converting a direct current voltage into a 3-phase alternating current by turning the plurality of current detection switching elements on and off; an AD converter for directly receiving an input of an output current of an output terminal of each of the plurality of current detection switching elements as a detection current and converting the detection current into a detection signal value in digital form; and a control unit for controlling on and off of the plurality of current detection switching elements by using the detection signal value.
    Type: Grant
    Filed: April 23, 2013
    Date of Patent: August 15, 2017
    Assignee: Infineon Technologies Korea Co. Ltd.
    Inventors: Yun Kyu Choi, Hye Seong Heo
  • APPARATUS FOR CONTROLLING INVERTER CURRENT & METHOD OF OPERATING THE SAME
    Publication number: 20130279225
    Abstract: Provided is an apparatus for controlling an inverter current, and more particularly, to a current controlling apparatus for controlling current of a switching element of an inverter that outputs a 3-phase alternating current. The apparatus for controlling an inverter current includes: an inverter comprising a plurality of current detection switching elements capable of detecting switched and output current, converting a direct current voltage into a 3-phase alternating current by turning the plurality of current detection switching elements on and off; an AD converter for directly receiving an input of an output current of an output terminal of each of the plurality of current detection switching elements as a detection current and converting the detection current into a detection signal value in digital form; and a control unit for controlling on and off of the plurality of current detection switching elements by using the detection signal value.
    Type: Application
    Filed: April 23, 2013
    Publication date: October 24, 2013
    Inventors: Yun Kyu Choi, Hye Seong Heo