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:
Mar. 17, 2026
Filed:
Jan. 26, 2022
Applicant:
Signify Holding B.v., Eindhoven, NL;
Inventors:
Chenghu Luo, Shanghai, CN;
Lijun Zhou, Shanghai, CN;
Assignee:
SIGNIFY HOLDING B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/50 (2022.01); H02H 9/06 (2006.01);
U.S. Cl.
CPC ...
H05B 45/50 (2020.01); H02H 9/06 (2013.01);
Abstract
A protection circuit is provided comprising a voltage clamping circuit and a discharge circuit connected between the voltage clamping circuit and the ground. The discharge circuit has, in series, a gas discharge tube component and a controllable voltage triggering circuit with a triggering threshold. A hi-pot test voltage is insufficient to trigger the voltage triggering circuit and a low current is conducted. A surge test voltage is sufficient to break down the voltage triggering circuit to provide a low voltage drop and a large current flows.