Dimming-Feedback Control Method for TRIAC Dimmable LED Drivers

  title={Dimming-Feedback Control Method for TRIAC Dimmable LED Drivers},
  author={SangCheol Moon and Gwan-Bon Koo and Gun-Woo Moon},
  journal={IEEE Transactions on Industrial Electronics},
This paper presents a small-signal ac modeling of a feedback system for a flyback light-emitting diode (LED) driver. From this analysis, a dimming-feedback control method, which has a constant loop gain at dc, is proposed for dimmable LED drivers. Since the proposed method controls the steady-state error of the feedback system, an additional phase angle… CONTINUE READING