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:
Sep. 05, 2017
Filed:
Oct. 28, 2014
Abl Ip Holding Llc, Decatur, GA (US);
John G. Serra, Hampshire, IL (US);
Michael Gielniewski, Bartlett, IL (US);
ABL IP HOLDING LLC, Decatur, GA (US);
Abstract
An analog-based dimmable LED lighting system includes a plurality of LED lighting modules, which emit light at different correlated color temperature (CCT) ranges. Each of the LED lighting modules is powered by a common dimming signal in the form of an AC voltage which corresponds to a dimming level in a dimming region. Each of the LED lighting modules includes an LED, an analog rectifier bridge to convert the AC voltage of the common dimming signal to a DC voltage, and an analog current limiter connected between the rectifier and the LED to control current through the LED according to the common dimming signal. The LED(s) in the different lighting modules are controlled, via respective analog current limiter, to produce a resultant light at a selected CCT and light intensity according to the common dimming signal.