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.

Date of Patent:
Aug. 02, 2016

Filed:

Jun. 24, 2015
Applicant:

Chengdu Monolithic Power Systems Co., Ltd., Chengdu, CN;

Inventor:

Li Lian, Chengdu, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); H05B 37/02 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0851 (2013.01); H05B 33/089 (2013.01); H05B 33/0812 (2013.01); H05B 37/02 (2013.01);
Abstract

A light driver and the controller and the driving method thereof are disclosed. The controller has a reference generating circuit which has a dimming signal converting circuit, a thermal signal converting circuit and a selecting circuit. The dimming signal converting circuit converts a dimming signal into a converted dimming signal and the thermal signal converting circuit converts the thermal signal into a converted thermal signal. The selecting circuit selects the smaller one of the converted dimming signal and the converted thermal signal and outputs a reference signal based on the selected smaller signal.


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