Patents by Inventor Jongmu LEE

Jongmu LEE 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).

  • Switch controller and converter including the same for prevention of damage
    Patent number: 8947893
    Abstract: In a converter using a transformer, a switch controller controlling a main switch and an auxiliary switch increase a turn-on time of the auxiliary switch when a voltage of a signal corresponding to a current flowing to a primary coil of the transformer is greater than a reference voltage for a predetermined period.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: February 3, 2015
    Assignee: Fairchild Korea Semiconductor Ltd.
    Inventors: Jin-Tae Kim, Shanmei Li, Jongmu Lee
  • SWITCH CONTROLLER AND CONVERTER INCLUDING THE SAME
    Publication number: 20120120686
    Abstract: In a converter using a transformer, a switch controller controlling a main switch and an auxiliary switch increase a turn-on time of the auxiliary switch when a voltage of a signal corresponding to a current flowing to a primary coil of the transformer is greater than a reference voltage for a predetermined period.
    Type: Application
    Filed: November 10, 2011
    Publication date: May 17, 2012
    Inventors: Jin-Tae KIM, Shanmei LI, Jongmu LEE