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. 18, 2014
Filed:
Jan. 08, 2013
Applicant:
Liteideas, Llc, Mansfield Center, CT (US);
Inventors:
Todd W Hodrinsky, Mansfield Center, CT (US);
Donald T Wesson, Jr., Ashford, CT (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/00 (2006.01); H05B 39/00 (2006.01); H05B 41/14 (2006.01); G05F 1/607 (2006.01); H02M 1/14 (2006.01); H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
H02M 1/14 (2013.01); H05B 37/02 (2013.01);
Abstract
An apparatus and method of operation of a low-current LED lighting circuit are disclosed. The invention utilizes high AC voltage input and unreduced voltage ripple component of the rectified DC power signal, which provides the ability to drive an LED load at high power factor at low current. The invention discloses both active and passive circuits to limit the peak current flowing to the LED and create a current source for the LED load. The proposed circuit increases reliability by optionally eliminating capacitor, inductor, and heatsink components while minimizing luminous flux fluctuations.