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:
Jul. 26, 2011
Filed:
Feb. 12, 2009
Matthew Weaver, Aptos, CA (US);
Herman Ferrier, Scotts Valley, CA (US);
Matthew Weaver, Aptos, CA (US);
Herman Ferrier, Scotts Valley, CA (US);
Lumenetix, Inc., Scotts Valley, CA (US);
Abstract
An electrical circuit is disclosed for driving color strings that have at least one lamp, preferably a light emitting diode (LED). The color strings can be different lengths. In some embodiments, a switch is coupled in parallel to one of the LED strings to shunt power away from the LED string to a power supply or to one or more other LED strings. In some embodiments, a current injector is configured to remove current from or inject current into a node adjacent to an LED string. Methods are disclosed for producing a desired light output utilizing color strings that may be of dissimilar length and that may contain light emitting diodes of different colors.