Patents by Inventor Ui Yeop Chung

Ui Yeop Chung 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 and method for controlling operation of linear motor compressor
    Patent number: 6623246
    Abstract: An apparatus and a method for controlling operation of a linear motor compressor, by which a linear motor compressor can operate always in an optimum condition by coping with the load variation due to changes in a refrigerator and the circumstances. In more detail, a current peak value at TDC=0 is detected by comparing a current applied to the linear motor compressor with a formerly detected current, and accordingly the linear motor compressor is operated by a switching control signal generated according to a duty-ratio corresponding to the current peak value.
    Type: Grant
    Filed: January 9, 2002
    Date of Patent: September 23, 2003
    Assignee: LG Electronics Inc.
    Inventors: Yin Young Hwang, Joon Hyung Park, Jin Koo Park, Sang Ho Seo, Ui Yeop Chung
  • Apparatus and method for controlling operation of linear motor compressor
    Publication number: 20020150477
    Abstract: An apparatus and a method for controlling operation of a linear motor compressor, by which a linear motor compressor can operate always in an optimum condition by coping with the load variation due to changes in a refrigerator and the circumstances. In more detail, a current peak value at TDC=0 is detected by comparing a current applied to the linear motor compressor with a formerly detected current, and accordingly the linear motor compressor is operated by a switching control signal generated according to a duty-ratio corresponding to the current peak value.
    Type: Application
    Filed: January 9, 2002
    Publication date: October 17, 2002
    Inventors: Yin Young Hwang, Joon Hyung Park, Jin Koo Park, Sang Ho Seo, Ui Yeop Chung