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:
Jul. 07, 2026
Filed:
Dec. 27, 2024
Powerx Semiconductor Corporation, Hsinchu County, TW;
Te Cheng Chen, Hsinchu County, TW;
PowerX Semiconductor Corporation, Hsinchu County, TW;
Abstract
A light-emitting diode driving circuit is electrically connected to the light-emitting diode array which includes a plurality of light strings. The light-emitting diode driving circuit includes a constant current source, a plurality of resistor, a detection circuit and a determination circuit. The constant current source is electrically connected between the light strings and the second current source and configured to control a driving current as a constant current. First terminals of the resistors are respectively connected to the light strings, and the second terminals of the resistors are connected to a reference voltage. The determination circuit is configured to output a failure determination signal.