• DocumentCode
    1890880
  • Title

    A double-loop control LED backlight driver IC for medium-sized LCDs

  • Author

    Seok-in Hong ; Jin-Wook Han ; Dong-Hee Kim ; Oh-Kyong Kwon

  • Author_Institution
    Hanyang Univ., Seoul, South Korea
  • fYear
    2010
  • fDate
    7-11 Feb. 2010
  • Firstpage
    116
  • Lastpage
    117
  • Abstract
    We present an LED backlight driver IC that uses a double loop control method to achieve 50 kHz PWM dimming frequency with 8 b resolution. The measured output voltage of the boost converter is 26.41 V and its maximum ripple voltage is 500 mVpp. Measured rise and fall times of the LED current are 86 ns and 7 ns, respectively.
  • Keywords
    light emitting diodes; liquid crystal displays; power convertors; LED backlight driver IC; PWM dimming frequency; boost converter; double loop control; frequency 50 kHz; light emitting diodes; liquid crystal displays; medium sized LCD; pulse width modulation; ripple voltage; time 7 ns; time 86 ns; voltage 26.41 V; voltage 500 mV; Biomedical measurements; Energy consumption; Feedback loop; Frequency; Light emitting diodes; Programmable control; Pulse width modulation; Regulators; Transient response; Voltage control;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference Digest of Technical Papers (ISSCC), 2010 IEEE International
  • Conference_Location
    San Francisco, CA
  • ISSN
    0193-6530
  • Print_ISBN
    978-1-4244-6033-5
  • Type

    conf

  • DOI
    10.1109/ISSCC.2010.5434081
  • Filename
    5434081
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1890880