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:
Oct. 15, 2013
Filed:
Apr. 29, 2011
Applicants:
Luca Bordin, Shenzen, CN;
Yuli Chen, Shenzen, CN;
Shijun Nie, Shenzen, CN;
Wei Tan, Shenzen, CN;
Inventors:
Assignee:
OSRAM Gesellschaft mit beschraenkter Haftung, Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 41/16 (2006.01);
U.S. Cl.
CPC ...
Abstract
In various embodiments, a method for obtaining a conduction angle of a trailing edge dimmer is provided. The method may include determining a time point twhen the trailing edge dimmer starts to be conductive; determining an earliest time point twhen a deviation from an ideal waveform appears; and determining the conduction angle t-tof the trailing edge dimmer based on the earliest time point twhen the deviation from the ideal waveform appears and the time point twhen the trailing edge dimmer starts to be conductive.