US Patent No. 10,117,297

APPARATUS, SYSTEMS, AND METHODS FOR REMOTELY DIMMING LIGHTS


Patent No. 10,117,297
Issue Date October 30, 2018
Title Apparatus, Systems, And Methods For Remotely Dimming Lights
Inventorship Yung-Wen Wu, Saratoga, CA (US)
Thomas Kuo Liu, San Jose, CA (US)
Assignee Bitsysoft Technology Inc., Saratoga, CA (US)

Claim of US Patent No. 10,117,297

1. A light-dimming apparatus for placement within a lighting enclosure of a lighting fixture, the light-dimming apparatus comprising:an AC live input terminal configured to couple to an AC live input wire from a power source, an AC neutral input terminal configured to couple to an AC neutral input wire, an AC live output terminal configured to couple to an AC live output wire coupled to a lighting load, and an AC neutral output terminal configured to couple to an AC neutral output wire coupled to the lighting load;
a microcontroller unit comprising a plurality of wireless communication modules, a first processor core, a second processor core, and a memory;
an alternating current-to-direct current (AC-to-DC) buck converter coupled to the AC live input terminal, the AC neutral input terminal, and the microcontroller unit and configured to deliver power to the microcontroller unit;
a dimmer module configured to detect a zero-crossing signal and modulate power supplied to the lighting load, wherein the dimmer module comprises:
a full bridge rectifier electrically coupled to at least the AC live input terminal and the AC neutral input terminal,
a first optocoupler electrically coupled to at least the full bridge rectifier and the microcontroller unit,
a bidirectional triode thyristor coupled to at least the AC live output wire,
a second optocoupler coupled to at least the microcontroller unit and the bidirectional triode thyristor;
wherein the first processor core of the microcontroller unit is programmed to execute instructions stored in the memory of the microcontroller unit to receive a dimming command comprising a dimming value from another device via at least one of the plurality of wireless communication modules to dim a brightness of the lighting load; and
wherein the second processor core of the microcontroller unit is programmed to execute further instructions stored in the memory of the microcontroller unit to receive zero-crossing signals from the dimmer module and transmit a plurality of switching signals to the second optocoupler to work with the bidirectional triode thyristor to modulate the power supplied to the lighting load to dim the brightness of the lighting load according to the dimming value.