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

Claim 0:
1. A light emitting diode (LED) lighting apparatus comprising:
a first LED array;
a second LED array;
a communication device configured to receive DC power and to generate a first control signal having a first Pulse Width Modulation (PWM) control signal and a second control signal having a second PWM control signal, based on a request from an external device;
a first driving chip directly connected to the first LED array, and configured to receive AC power and the first control signal, and to control the first LED array based on the first control signal;
a second driving chip directly connected to the second LED array, and configured to receive the AC power and the second control signal, and to control the second LED array based on the second control signal; and
an AC/DC converter configured to receive the AC power, and to provide the DC power to the communication device.