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:
Jan. 13, 2026
Filed:
Mar. 07, 2022
Signify Holding B.v., Eindhoven, NL;
Shan Qing, Shanghai, CN;
Guy Louis Paul De Bondt, Antwerpen, NL;
Junwei Tian, Shanghai, CN;
Dalibor Cvoric, Gelderland, NL;
Morna Shen, Shanghai, CN;
Hermanus Johannes Maria Vos, Waalre, NL;
Frits Tobi De Jongh, Beek en Donk, NL;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
In order to provide a balance between a fast start-up in start-up phase and a low light output ripple in normal operation phase, it is provided a LED driving circuit comprising: an input to receive a LED driving current, a buffer circuit adapted to buffer said LED driving current, and an output to be connected to LED and adapted to output the LED driving current, after buffered, to the LED, characterized in that, further comprises a buffer adjustment circuit adapted to adjust the buffer capability of the buffer circuit at a first level, in a start-up phase of the LED driving circuit when the LED driving circuit starts to receive said LED driving current, and adjust the buffer capability of the buffer circuit at a second level larger than the first level in a normal operation phase later than the start-up phase.