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:
Oct. 20, 2026
Filed:
Mar. 27, 2026
Instagrid Gmbh, Ludwigsburg, DE;
Philipp Gutknecht, Ludwigsburg, DE;
Jakob Gantenbein, Ludwigsburg, DE;
instagrid GmbH, Ludwigsburg, DE;
Abstract
A protection circuit for protecting an electrical power system, including a current sensor configured to generate an electric signal wherein the current sensor has a measurement dynamic range; a rectifying module configured to generate a pulsating DC signal; a superimposing module configured to generate an expanded signal; a low-pass filter configured to shape the expanded signal to generate a band-limited signal; a logic module configured to generate a trip signal when the band-limited signal violates a predetermined threshold; wherein the trip signal is usable for cutting off the flow of the AC current. The present teachings also relate to related methods and software products.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile