Patents by Inventor Jin-sub Han

Jin-sub Han 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).

  • Circuit and method for generating PWM signal for DC-DC converter using dimming signal and LED driving circuit for backlight having the same
    Patent number: 8581511
    Abstract: A pulse width modulation (PWM) signal generating circuit that generates a PWM signal for a DC-DC converter using a dimming signal is provided. The PWM signal generating circuit includes a normal PWM signal generator configured to generate a normal PWM signal based on a clock signal provided to the DC-DC converter, and a compensation PWM signal generator configured to generate a compensation PWM signal based on the clock signal and the dimming signal.
    Type: Grant
    Filed: February 9, 2011
    Date of Patent: November 12, 2013
    Assignee: MagnaChip Semiconductor, Ltd.
    Inventors: Eung-suen Kim, Jin-sub Han, Seung-beom Baik, Chang-sik Lim
  • CIRCUIT AND METHOD FOR GENERATING PWM SIGNAL FOR DC-DC CONVERTER USING DIMMING SIGNAL AND LED DRIVING CIRCUIT FOR BACKLIGHT HAVING THE SAME
    Publication number: 20110227502
    Abstract: A pulse width modulation (PWM) signal generating circuit that generates a PWM signal for a DC-DC converter using a dimming signal is provided. The PWM signal generating circuit includes a normal PWM signal generator configured to generate a normal PWM signal based on a clock signal provided to the DC-DC converter, and a compensation PWM signal generator configured to generate a compensation PWM signal based on the clock signal and the dimming signal.
    Type: Application
    Filed: February 9, 2011
    Publication date: September 22, 2011
    Applicant: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Eung-suen Kim, Jin-sub Han, Seung-beom Baik, Chang-sik Lim