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. 16, 2025
Filed:
Jan. 17, 2024
Anpec Electronics Corporation, Hsinchu, TW;
Wen-Yen Chen, Hsinchu, TW;
ANPEC ELECTRONICS CORPORATION, Hsinchu, TW;
Abstract
A driver circuit for adaptively switching a light-emitting diode current is provided. The driver circuit at least includes a first transistor, a first switching component, a second transistor, a third transistor and an operational amplifier. A first terminal of the first transistor is connected to a first input terminal of the operational amplifier. A first terminal of the first switching component is connected to a control terminal of the first transistor. A control terminal of the second transistor is connected to a second terminal of the first switching component. A first terminal of the third transistor is connected to one or more light-emitting diodes. A second terminal of the third transistor is connected to a first terminal of the second transistor and a second input terminal of the operational amplifier. An output terminal of the operational amplifier is connected to a control terminal of the third transistor.