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. 29, 2011
Filed:
May. 18, 2007
Anatoly Shteynberg, San Jose, CA (US);
Harry Rodriguez, Gilroy, CA (US);
Anatoly Shteynberg, San Jose, CA (US);
Harry Rodriguez, Gilroy, CA (US);
Exclara, Inc., Santa Clara, CA (US);
Abstract
An exemplary apparatus embodiment provides for controlling current supplied to solid state lighting, such as light emitting diodes. An exemplary apparatus comprises a memory adapted to store a plurality of current parameters; and a control circuit adapted to modulate an energizing cycle time period for providing a substantially constant DC average current to the solid state lighting in response to a selected current parameter of the plurality of current parameters. In an exemplary embodiment, the control circuit modulates a current provided to the solid state lighting in response to a predetermined minimum current level (I) parameter and a predetermined peak current level (I) parameter, such that the DC average current level (I) is substantially proportional to one-half of a sum of a predetermined peak current level ('I') and a predetermined minimum current level