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:
Mar. 13, 2012
Filed:
Dec. 02, 2009
Kuo-ching Hsu, Hsinchu, TW;
Tsung-hau Chang, Hsinchu, TW;
Chin-hsun Hsu, Taipei County, TW;
NOVATEK Microelectronics Corp., Hsinchu Science Park, Hsin-Chu, TW;
Abstract
A light source driving device for driving a light emitting component is disclosed. The light source driving device includes a voltage converter coupled to the light emitting component for converting an input voltage into an output driving voltage according to a voltage control signal, a dimming unit coupled to the light emitting component for implementing a dimming process according to a dimming signal, a current source coupled to the dimming unit for providing a driving current to drive the light emitting component, and a control unit coupled to the dimming unit and the voltage converter for detecting a dimming state to generate a dimming detection signal and generating a reference voltage according to the dimming detection signal, wherein the control unit controls the voltage converter to generate the output driving voltage so as to driving the light emitting component.