Patent ID: 9084317
Filing Date: 2015-07-14
Classification: H05B,Y02B

Abstract:
1. A system for providing at least an output current to one or more light emitting diodes, the system comprising: a first signal processing component configured to receive at least a sensed signal and generate a first signal, the sensed signal being associated with an inductor current flowing through an inductor coupled to a switch; a second signal processing component configured to generate a second signal; an integrator component configured to receive the first signal and the second signal and generate a third signal; a comparator configured to process information associated with the third signal and the sensed signal and generate a comparison signal based on at least information associated with the third signal and the sensed signal; a signal generator configured to receive at least the comparison signal and generate a modulation signal; and a gate driver configured to receive the modulation signal and output a drive signal to the switch; wherein the drive signal is associated with at least one or more switching periods, each switching period of the one or more switching periods including at least an on-time period for the switch and a demagnetization period for a demagnetization process; wherein for the each switching period of the one or more switching periods, wherein: