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.

Date of Patent:
Jan. 06, 2026

Filed:

Dec. 01, 2022
Applicant:

Signify Holding B.v., Eindhoven, NL;

Inventors:

Liwen Zhou, Shanghai, CN;

Ye Feng, Shanghai, CN;

Assignee:

SIGNIFY HOLDING B.V., Eindhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/59 (2022.01); H02M 1/00 (2007.01); H05B 45/10 (2020.01); H05B 45/325 (2020.01); H05B 45/375 (2020.01); H05B 47/155 (2020.01);
U.S. Cl.
CPC ...
H05B 45/59 (2022.01); H02M 1/008 (2021.05); H05B 45/10 (2020.01); H05B 45/325 (2020.01); H05B 45/375 (2020.01); H05B 47/155 (2020.01);
Abstract

A lighting assembly comprises a first lighting arrangement with a first lighting unit board and a first switched mode driving unit and a second lighting arrangement with a second lighting unit board and a second switched mode driving unit. A parasitic capacitance is present between the first and second lighting unit boards. The switched mode driving units switches voltages on the lighting arrangements and said voltages generates a differential voltage across the parasitic capacitance and leads to a leakage current. A blocking arrangement is in a path between the first and second lighting arrangements and it blocks the leakage current flowing at least from one of the first and second lighting arrangements to the other of the first and second lighting arrangements via the parasitic capacitance due to the differential voltage between the driving units. In this way, disturbances to the current regulation function in one of the driving units, caused by a parasitic current flow from the other driving unit, is prevented.


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