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:
Sep. 03, 2013
Filed:
Mar. 22, 2011
BO Yu, Hangzhou, CN;
Yuancheng Ren, Hangzhou, CN;
Lei Du, Hangzhou, CN;
Naixing Kuang, Hangzhou, CN;
Zhishun LI, Taipei, TW;
Bo Yu, Hangzhou, CN;
Yuancheng Ren, Hangzhou, CN;
Lei Du, Hangzhou, CN;
Naixing Kuang, Hangzhou, CN;
Zhishun Li, Taipei, TW;
Monolithic Power Systems, Inc., San Jose, CA (US);
Abstract
Circuitry and methods for driving a plurality of LED strings are disclosed herein. In one embodiment, the circuitry comprises a plurality of current regulating circuits electrically coupled to the LED strings and are configured to regulate a current flowing through the LED strings. At least two control circuits are coupled to the current regulating circuits and are configured to generate a control signal according to terminal voltages of the corresponding current regulating circuits. A voltage converter is electrically coupled to the LED strings and to the at least two control circuits, and is configured to regulate the DC driving voltage according to the at least two control signals.