Patents by Inventor Keun-Eul Hong

Keun-Eul 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).

  • Controller and power converter using the same for clamping maximum switching current of power converter
    Patent number: 8749999
    Abstract: A controller of a power converter is provided. The controller includes a feedback circuit, an output circuit, and a clamping circuit. The feedback circuit generates a feedback signal in accordance with output of the power converter. The output circuit generates a switching signal in accordance with the feedback signal for regulating the output of the power converter. The clamping circuit limits the feedback signal under a first level for a first load condition and limits the feedback signal under a second level for a second load condition. The clamping circuit includes a timer circuit. The timer circuit determines a slew rate of the feedback signal for increasing the feedback signal from the first level to the second level, and the second level is higher than the first level.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: June 10, 2014
    Assignee: System General Corporation
    Inventors: Ta-Yung Yang, Keun-Eul Hong, Jung-Sheng Chen, Ju-hyun Kim