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:
Dec. 30, 2014
Filed:
Jan. 21, 2011
Sih-ting Wang, Kaohsiung County, TW;
Chung-wen Wu, Yilan County, TW;
Chien-cheng Tu, Hsinchu, TW;
Chia-chun Liu, Hsinchu County, TW;
Sih-Ting Wang, Kaohsiung County, TW;
Chung-Wen Wu, Yilan County, TW;
Chien-Cheng Tu, Hsinchu, TW;
Chia-Chun Liu, Hsinchu County, TW;
NOVATEK Microelectronics Corp., Hsinchu Science Park, Hsin-Chu, TW;
Abstract
A short detection circuit includes a voltage divider circuit, for generating, according to a bottom voltage of one or more light-emitting diode strings, a divided voltage less than the bottom voltage. Additionally, the short detection circuit includes a voltage clamp circuit, coupled to the voltage divider circuit, for clamping the divided voltage, and a comparator, coupled to the voltage divider circuit, for comparing the divided voltage and a reference voltage, to decide whether a short circuit occurs in the one or more light-emitting diode strings according to a result of the comparison.