Patent ID: 11956867
Assignee: ON-BRIGHT ELECTRONICS (SHANGHAI) CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 9:
10. A method for providing at least an output current to one or more light emitting diodes, the method comprising:
receiving at least a sensed signal and a predetermined voltage signal;
generating a current signal based on at least information associated with the sensed signal and the predetermined voltage signal;
processing information associated with the current signal;
generating a multiplication signal based on at least information associated with a first voltage signal and a second voltage signal, the first voltage signal being generated by a capacitor;
generating a comparison signal based on at least information associated with the multiplication signal and the sensed signal;
generating a modulation signal based on at least information associated with the comparison signal;
receiving the modulation signal; and
outputting a drive signal to a switch, the drive signal being based on at east information associated with the modulation signal;
wherein:
the drive signal is associated with at least one or more switching periods, each switch period of the one or more switching periods including at least an on-time period for the switch;
the receiving at least a sensed signal and a predetermined voltage signal includes, for each switch period of the one or more switching periods, receiving the predetermined voltage signal during only the on-time period for the switch; and
the processing information associated with the current signal includes charging or discharging the capacitor with the current signal.