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. 29, 2014
Filed:
Dec. 28, 2011
John William Kesterson, Seaside, CA (US);
Xiaoyan Wang, Milpitas, CA (US);
Xuecheng Jin, Palo Alto, CA (US);
Enzhu Liang, Pacifica, CA (US);
Selcuk Sen, Mountain View, CA (US);
John William Kesterson, Seaside, CA (US);
Xiaoyan Wang, Milpitas, CA (US);
Xuecheng Jin, Palo Alto, CA (US);
Enzhu Liang, Pacifica, CA (US);
Selcuk Sen, Mountain View, CA (US);
Dialog Semiconductor Inc., Campbell, CA (US);
Abstract
A system controls a switching power converter to power LED strings using a predictive feedforward control mechanism. An LED controller determines programmed current levels and duty cycles for driving LED strings. The LED controller determines a predicted load for a subsequent cycle of a switching power converter driving the LED strings based on the programmed current levels and duty cycles. A power conversion controller uses the predicted load information to control switching of the switching power converter. This improves the dynamic response of the switching converter to changing load conditions, thereby improving overall power efficiency and performance of the system.