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:
Aug. 23, 2022
Filed:
Sep. 03, 2019
Signify Holding B.v., Eindhoven, NL;
Zhi Quan Chen, Shanghai, CN;
John Dai, Shanghai, CN;
Liang Shi, Shanghai, CN;
Kelvin Wang, Shanghai, CN;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
In order to reduce energy loss of a tapped linear driver, it is proposed an LED lighting circuit, comprising an input (Vbus, GND) adapted to receive an input voltage, a plurality of LED segments (LED, LED, LED, LED) connected in series and to the input, a buffer component (C) connected to an anode and a cathode of a series string of at least two of the plurality of LED segments with respective switches, a current source circuit (B) in series connection with a parallel connection of the buffer component (C) and the at least two LED segments, across the input; further comprising a further buffer component (C) across the current source circuit (B), wherein said buffer component (C) and the further buffer component (C) is in series connection.