Patent ID: 11882634
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H | IPC H

Claim 15:
16. A method of operating a light emitting diode (LED) lighting apparatus, the method comprising:
receiving AC power;
converting the AC power to DC power using a buck-converter;
providing the DC power to a communication device;
providing the AC power to a plurality of driving chips corresponding to a plurality of LED arrays;
generating a plurality of control signals, each having a Pulse Width Modulation (PWM) control signal, using the communication device; and
providing the plurality of control signals from the communication device to a driving chip that is directly connected to the communication device;
providing the AC power to the driving chip; and
controlling, using the driving chip, any one or any combination of brightness and color temperature of the plurality of LED arrays of the LED lighting apparatus based on the plurality of control signals, wherein each of the plurality of LED arrays is directly connected to the driving chip.