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. 14, 2023
Filed:
Dec. 17, 2021
Zf Friedrichshafen Ag, Friedrichshafen, DE;
Philipp Schmachtenberger, Regensburg, DE;
Christian Aigner, Regensburg, DE;
Ulrich Schmidt, Friedrichshafen, DE;
ZF FRIEDRICHSHAFEN AG, Friedrichshafen, DE;
Abstract
A vehicle analog comparator circuit for communication interfaces designed to detect an actuation of an actor. The circuit comprises a unit for producing a supply voltage for supplying the actor, a unit for producing a reference voltage to be compared with the supply voltage, a transistor input stage, a node point EDMx between the actor, the unit for producing a supply voltage and the transistor input stage, and a digital evaluation unit to process the output signal from the transistor input stage such that whether or not the actor is actuated is detected. The transistor input stage comprises a transistor circuit with a first transistor is connected to the node point EDMx, and a second transistor connected to the reference voltage. A collector resistance for limiting the collector current of the second transistor, as well as a base resistance for the two transistors. Alternatively, a current mirror is provided.