US Patent No. 9,408,263

LED LIGHTING DEVICE


Patent No. 9,408,263
Issue Date August 02, 2016
Title Led Lighting Device
Inventorship Myeong Kook Gong, Yongin-si (KR)
Hee Jin Jung, Seongnam-si (KR)
Assignee LUMENS CO., LTD., Yongin-Si (KR)

Claim of US Patent No. 9,408,263

1. A light emitting diode (LED) lighting device comprising:
an LED;
a bridge rectifier;
a TRIAC dimmer for controlling the luminance of the LED; and
a load connected between an output terminal of the TRIAC dimmer and the bridge rectifier to stabilize the operation of the
TRIAC dimmer even in low dimming level of the TRIAC dimmer,

wherein the load includes:
a first damping resistor that is connected between a first node of the output terminal and a first node of the bridge rectifier;
and

a second damping resistor that is connected between a second node of the output terminal and a second node of the bridge rectifier,
wherein the bridge rectifier is connected with the load to supply an operating current to the LED and the LED receives the
operating current from the bridge rectifier.