• DocumentCode
    3586346
  • Title

    Fully digitalized switch-mode LED driver without ADC

  • Author

    Jae-Hyoun Park ; Hyung-Do Yoon

  • Author_Institution
    Photonic Convergence Res. Center, Korea Electron. Technol. Inst., Seongnam, South Korea
  • fYear
    2014
  • Firstpage
    248
  • Lastpage
    249
  • Abstract
    A digitalized switch-mode LED driver is implemented using a 0.35μm high voltage process, which featured by no use of any ADCs. The comparison result between the output current and the desired current causes the counter to increase or decrease its binary value which determines the duty ratio of the PWM signal. This PWM signal controls switching devices. A delay routine added in the counter prevents oscillation of the counter value owing to a high speed clock.
  • Keywords
    driver circuits; light emitting diodes; switched mode power supplies; PWM signal; duty ratio; fully digitalized switch-mode LED driver; switching devices; Capacitors; Flowcharts; Light emitting diodes; Photonics; Pulse width modulation; Radiation detectors; Switches; LED driver; digitalized; without ADC;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    SoC Design Conference (ISOCC), 2014 International
  • Type

    conf

  • DOI
    10.1109/ISOCC.2014.7087630
  • Filename
    7087630
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=3586346