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. 06, 2016
Filed:
Dec. 11, 2014
Benedetto Mignano, Wantagh, NY (US);
Peter J. Visconti, East Setauket, NY (US);
Attila Tetik, New York, NY (US);
Fred Katz, Hauppauge, NY (US);
Benedetto Mignano, Wantagh, NY (US);
Peter J. Visconti, East Setauket, NY (US);
Attila Tetik, New York, NY (US);
Fred Katz, Hauppauge, NY (US);
LSI Computer Systems Inc., Melville, NY (US);
Abstract
This invention is suitable for directly driving from an alternating current (AC) line voltage source an array of LED lamps with a minimal amount of ancillary circuitry. Most of the required circuitry is situated within an integrated circuit, which includes a full wave rectifier, transient protection, a current control transistor, a feedback control loop, and overheating protection. The integrated circuit powers a transistor circuit structured as a constant current source to energize individual groupings of LEDs, as well as larger configurations of LEDs. The invention is useful for various lighting arrangements such as luminaires, bollards, strip lights, task lights, lighting tubes, and other types of applications that use a multitude of LEDs powered directly by AC line voltage without the requirement of a direct current power supply. This invention may further be used with an external phase switching dimmer apparatus.