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:
May. 04, 2021
Filed:
Mar. 27, 2020
Wago Verwaltungsgesellschaft Mit Beschraenkter Haftung, Minden, DE;
Alexander Buelow, Stadthagen, DE;
Christian Voss, Minden, DE;
WAGO Verwaltungsgesellschaft mbH, Minden, DE;
Abstract
A switching circuit for checking an analog input circuit of an A/D converter is shown. The switching circuit comprises the analog circuit and a comparator circuit. The analog input circuit is configured to generate a first derived signal Sand a second derived signal Sfrom an analog input signal SE of the analog input circuit. The first derived signal Sand the second derived signal Sare input signals for the comparator circuit, but only the first derived signal Sis an input signal for the A/D converter. The comparator circuit is configured to check whether a deviation of the derived signals S, Sfrom each other lies within a tolerance range TOL and to output an output signal SA depending on the check, which may be further evaluated.