The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 01, 2022
Filed:
May. 02, 2022
Aleddra Inc., Renton, WA (US);
Chungho Hsia, Bellevue, WA (US);
Aleddra Inc., Renton, WA (US);
Abstract
A light-emitting diode (LED) luminaire dimming driver comprises a power supply circuit, a dimming interface circuit, an optocoupler circuit, an LED luminaire driving circuit, and a supplied voltage control circuit. The LED luminaire driving circuit is configured to automatically convert a constant voltage from the power supply circuit into an output DC voltage to dim an external LED luminaire in response to a dimming signal no matter whether the external LED luminaire is originally dimmable or not. The LED luminaire driving circuit is further configured to receive a pulse-width modulation (PWM) signal and to control a magnitude of the output DC voltage in response to the PWM signal. The supplied voltage control circuit comprises a relay switch configured to sense the dimming signal, to control switching between a line voltage from AC mains and the output DC voltage to operate the external LED luminaire without operational ambiguity.