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. 18, 2025
Filed:
Feb. 22, 2022
Signify Holding B.v., Eindhoven, NL;
Hui Zhang, Shanghai, CN;
Zhaomin Meng, Shanghai, CN;
SIGNIFY HOLDING B.V., Eindhoven, NL;
Abstract
An approach for providing an auxiliary arrangement for a LED tube lamp that adapts a DC voltage for a monitoring circuit of the LED tube lamp. In particular, a modulation circuit of the auxiliary arrangement modulates a DC supply voltage, for the LED tube lamp, to simulate one or more characteristics of an alternating mains supply voltage for which the LED tube lamp is adapted. Preferably the at least one electrical characteristic comprises one or more electrical characteristics configured to designed to be detected by a monitoring circuit of the LED tube lamp operating in a safety detection mode, to allow the monitoring circuit to start a safety detection using the DC supply voltage.