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:
Aug. 12, 2014
Filed:
Nov. 05, 2010
Anatoly Shteynberg, San Jose, CA (US);
Harry Rodriguez, Gilroy, CA (US);
Anatoly Shteynberg, San Jose, CA (US);
Harry Rodriguez, Gilroy, CA (US);
Point Somee Limited Liability Company, Dover, DE (US);
Abstract
A representative apparatus embodiment provides a plurality of operating modes for solid state lighting, such as a flash mode and a constant or background lighting mode for use with devices such as cameras. A representative apparatus comprises a memory adapted to store a plurality of average current parameters; and a controller adapted to modulate an energizing cycle time period ('T') for providing power to the solid state lighting as proportional to the product of the selected average current parameter ('a') and a reset time period (“T”) for an inductor current to return to a substantially zero level from a predetermined peak level (T∝a·T). The average current parameter is predetermined as substantially proportional to a ratio of a peak inductor current level (“I”) to an average output D.C. current level (“I”)