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:
Jun. 10, 2014
Filed:
Sep. 25, 2011
Yung-chuan Chen, Tainan, TW;
Ching-ran Lee, Kinmen County, TW;
Hung-chun LI, Taoyuan County, TW;
Yao-te Huang, Changhua County, TW;
Yung-Chuan Chen, Tainan, TW;
Ching-Ran Lee, Kinmen County, TW;
Hung-Chun Li, Taoyuan County, TW;
Yao-Te Huang, Changhua County, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A light source driving device configured to drive a light-emitting unit is provided. The light source driving device includes a direct voltage source, a first capacitance unit, and a switching current adjustment circuit. The direct voltage source is coupled with the light-emitting unit and supplies a direct voltage. The first capacitance unit and the light-emitting unit are connected in parallel. The switching current adjustment circuit and the light-emitting unit are connected in series. The switching current adjustment circuit is configured to bear a part of a voltage stress of the direct voltage source and is configured to switch the direct voltage.