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:
Feb. 13, 2024
Filed:
Nov. 17, 2022
Samsung Electronics Co., Ltd., Suwon-si, KR;
Yongsik Kwak, Suwon-si, KR;
Sunkwon Kim, Suwon-si, KR;
Yongil Kwon, Suwon-si, KR;
Uijong Song, Suwon-si, KR;
Moonsuk Jeong, Suwon-si, KR;
Youngkil Choi, Suwon-si, KR;
Samsung Electronics Co., Ltd, Gyeonggi-do, KR;
Abstract
A light-emitting diode (LED) driving circuit for driving an LED channel including a plurality of LED elements includes a switch-capacitor amplifier circuit configured to sample received input current and amplify an input voltage corresponding to the input current, a replica circuit configured to connect to the switch-capacitor amplifier circuit in a first period to define a first feedback loop, and an output circuit configured to connect to the switch-capacitor amplifier in a second period to define a second feedback loop. The second period is after the first period, and the output circuit is configured to generate output current according to an output voltage of the switch-capacitor amplifier circuit and provide the output current to the LED.