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:
Nov. 18, 2025

Filed:

May. 12, 2023
Applicant:

C.e. Niehoff & Co., Evanston, IL (US);

Inventors:

Dimitar Delevski, Northbrook, IL (US);

Corey Buzzard, Skokie, IL (US);

Svetoslav Pirev, Glenview, IL (US);

Issam Jabaji, Glenview, IL (US);

Assignee:

C.E. Niehoff & Co., Evanston, IL (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/28 (2006.01); B60R 16/03 (2006.01); H02H 1/00 (2006.01);
U.S. Cl.
CPC ...
H02H 3/28 (2013.01); B60R 16/03 (2013.01); H02H 1/0007 (2013.01);
Abstract

A protection circuit for a capacitive filter for a multi-voltage system includes a first capacitor electrically connected between a first connection point at a first electrical potential and a second connection point at a second electrical potential and a second capacitor electrically connected between the second connection point and a third connection point at a third electrical potential. The first electrical potential is greater than the second electrical potential and the third electrical potential is less than the second electrical potential. The third electrical potential may be electrical ground. A controller circuit monitors a voltage differential across the first capacitor and the second capacitor and, based on the voltage differential meeting a threshold condition, controls a switch to disconnect one or both of the first capacitor and the second capacitor.


Find Patent Forward Citations

Delevski, Dimitar. (2025). Multi-voltage capacitive filter protection circuit (U.S. Patent No. 12476452). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12476452

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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