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. 09, 2021
Filed:
Sep. 30, 2019
Applicant:
Semiconductor Components Industries, Llc, Phoenix, AZ (US);
Inventor:
Henry Frazier Pruett, North Bend, OR (US);
Assignee:
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC, Phoenix, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/10 (2020.01); H05B 45/14 (2020.01); H05B 45/37 (2020.01); H05B 39/04 (2006.01); H05B 45/3725 (2020.01);
U.S. Cl.
CPC ...
H05B 45/10 (2020.01); H05B 39/041 (2013.01); H05B 45/14 (2020.01); H05B 45/3725 (2020.01);
Abstract
A dual-control dimming system is disclosed. The dual-control dimming system is configured to automatically change control of an LED between two control loops as an LED output is adjusted over a dimmable range. A first control loop may take control of the LED output in a first portion of the dimmable range, while the second loop may take control of the LED output in a second portion of the dimmable range. In this way, the LED may be powered efficiently in the first portion, while providing stable (i.e., flicker-free) output in the second portion.