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:
Dec. 02, 2025
Filed:
Nov. 29, 2023
Endress+hauser Conducta Gmbh+co. KG, Gerlingen, DE;
Jörg Uhle, Limbach-Oberfrohna, DE;
Endress+Hauser Conducta GmbH+Co. KG, Gerlingen, DE;
Abstract
A regenerative limiting circuit for potentially explosive areas, for supplying energy to a sensor and for data communication with a sensor, has an input unit, a first limiting unit, a second limiting unit, a monitoring unit, a high-voltage unit, a node unit, and a reference potential. The input unit has first and second data line connections, a supply line connection, and a zero line connection, each for connecting a connection cable. The first limiting unit is connected to the first data line connection, the second limiting unit is connected to the second data line connection and has a resistor and a Zener diode, wherein the Zener diode connects through to the reference potential in each case in the event of an overvoltage. The monitoring unit is connected to the first limiting unit and the second limiting unit, and is suitable for evaluating data.