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:
Apr. 08, 2025
Filed:
Aug. 17, 2022
Abb Schweiz Ag, Baden, CH;
Kalyan P. Gokhale, New Berlin, WI (US);
ABB Schweiz AG, Baden, CH;
Abstract
A detection circuit including a converter configured to convert a multiphase alternating current (AC) input into a direct current (DC) output, a plurality of sensing diodes, each sensing diode being separately electrically connected to one phase of the multiphase AC input, at least one node arranged downstream from the plurality of sensing diodes relative to the multiphase AC input, a power source configured to output a power source voltage to the at least one node and plurality of sensing diodes, and a mask time generator configured to determine a node voltage at the at least one node and determine whether the node voltage persists for a predetermined mask time period.