US Patent No. 11,071,178

LED LIGHTING SYSTEM, APPARATUS, AND DIMMING METHOD


Patent No. 11,071,178
Issue Date July 20, 2021
Title Led Lighting System, Apparatus, And Dimming Method
Inventorship Aiming Xiong, Jiaxing (CN)
Lin Zhou, Jiaxing (CN)
Assignee Jiaxing Super Lighting Electric Appliance Co., Ltd., Jiaxing (CN)

Claim of US Patent No. 11,071,178


1. A dimmer comprising a dimming signal generating circuit and a signal combining processing circuit, wherein:the dimming signal generating circuit is configured to receive a dimming instruction including a control code, which comprises a square wave of a specific sequence of high/low voltage levels for providing a manner of controlling an LED lamp, for the LED lamp to perform control of itself according to the manner of controlling provided by the control code in a received output signal, and
the signal combining processing circuit is configured to combine or synthesize a power signal and the dimming instruction to produce the output signal, wherein the power signal comprises a constant direct current (DC),
wherein the signal combining processing circuit includes a voltage division circuit and a control circuit, wherein the voltage division circuit has a terminal connected to ground and another terminal acting as a negative terminal of the dimmer; and the control circuit is configured to control voltage division performed by the voltage division circuit or to cause the voltage division circuit to be bypassed by a current.