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:
May. 26, 2020
Filed:
Sep. 09, 2019
Anpec Electronics Corporation, Hsinchu, TW;
Wen-Yen Chen, Hsinchu, TW;
Ming-Hung Chang, Hsinchu, TW;
ANPEC ELECTRONICS CORPORATION, Hsinchu County, TW;
Abstract
A method of driving an LED string is provided and includes steps of: (a) determining whether or not a detected voltage of a control terminal of a transistor is lower than a first reference voltage by a first comparator, if not, raising a voltage of the LED string by a power supply device and performing step (a), if yes, performing step (b); (b) determining whether or not the detected voltage is lower than a second reference voltage by a second comparator, if not, determining that a short circuit occurs, if yes, performing step (c); (c) increasing an output current of the LED string by an input current source; and (d) determining whether or not a current of the LED string reaches a maximum current that is adjustable by a light controller, if yes, determining that a short circuit occurs, if not, returning to step (c).
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile