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:
Apr. 16, 2013
Filed:
Dec. 06, 2010
Applicants:
Fu-yuan Shih, Hsinchu, TW;
Yang-tai Tseng, Hsinchu, TW;
Inventors:
Fu-Yuan Shih, Hsinchu, TW;
Yang-Tai Tseng, Hsinchu, TW;
Assignee:
Power Forest Technology Corporation, Hsinchu, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/32 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light emitting diode (LED) driving apparatus is provided, which includes a power conversion circuit for receiving and converting an input power so as to generate a DC voltage to simultaneously drive a plurality of LED strings arranged in parallel; and a plurality of current regulation chips each having a single regulation channel and respectively corresponding to the LED strings, wherein an icurrent regulation chip is only used for regulating a current flowing through an iLED string, where i is a positive integer.