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. 10, 2026
Filed:
Feb. 02, 2024
Future Systems Besitz Gmbh, Roedental, DE;
Peter Spiel, Regensburg, DE;
Bernhard Först, Kronach, DE;
Future Systems Besitz GmbH, Roedental, DE;
Abstract
A short circuit detection apparatus () for detection of an electrical short circuit current flowing in at least one monitored current path comprises an evaluation circuit () including at least one programmable or preprogrammed arithmetic unit (A) adapted to perform at least one arithmetic combination operation, ACOP, on a first voltage, U, provided by a resistive element () of the monitored current path and being proportional to the electrical current, I, flowing via the monitored current path and on a second voltage, U, provided by an inductive element () of the monitored current path and depending on a derivative of the electrical current, dI/dt, flowing via the monitored current path to provide a combined sensor voltage, and including a comparator (D) adapted to compare the combined sensor voltage provided by the programmable or preprogrammed arithmetic unit (A) with a preset or an adjustable threshold voltage to generate a short circuit detection signal (SCDS) if the combined sensor voltage exceeds the threshold voltage.
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