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:
Sep. 30, 2025
Filed:
Mar. 05, 2021
Robert Bosch Gmbh, Stuttgart, DE;
Melexis Technologies NV, Tessenderlo, BE;
Claudius Bevot, Stuttgart, DE;
Bernhard Ledermann, Stuttgart, DE;
Stefan Kremer, Stuttgart, DE;
Volodymyr Sotnikov, Tessenderlo, BE;
Robert Bosch GmbH, Stuttgart, DE;
Melexis Technologies NV, Tessenderlo, BE;
Abstract
An evaluation and control unit () for a broadband lambda probe () and a method for operating the same are disclosed. The evaluation and control unit () comprises pins (RE, IPE, APE, MES) connectable to electrical wires () of electrochemical cells () of the broadband lambda probe (), a controller (), a ASIC reference potential source (), wherein the ASIC reference potential source () is operable by means of the controller (), a switch assembly () connected to each of the pins (RE, I PE, APE, MES), wherein the switch assembly () comprises a first transistor (T) and a second transistor (T), wherein the switch reference potential source () is connected to a gate side of the first and second transistors (T, T), wherein the controller () is configured to vary the switch reference potential (V) applied to the gate side of the first and second transistors (T, T), wherein the switch assembly () is configured to allow a limiting current flowing to the drain side of the first transistor (T) from the ASIC reference potential if the potential at the gate side of the first and second transistors (T, T) is at a predetermined voltage between values of an open and closed switch.