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:
Aug. 31, 2021
Filed:
Oct. 14, 2019
Continental Automotive Gmbh, Hannover, DE;
Martin Schramme, Königsbrunn, DE;
Martin Geiger, Böbrach, DE;
CONTINENTAL AUTOMOTIVE GMBH, Hannover, DE;
Abstract
A method for operating a current sensor, having a first measurement resistor, a second measurement resistor and a reference resistor. The first and second measurement resistors are arranged in series. The reference resistor is electrically disconnected from the first and second measurement resistors in a first measurement state and connected in parallel with the first measurement resistor in a second measurement state. In the first measurement state, identifying the respective first and second measurement resistors voltage drop and determining the ratio of the voltage drops. In the second measurement state, identifying the respective first and second measurement resistors voltage drop and the reference resistor voltage drop, and determining the electrical resistance of the first and second measurement resistors from the identified voltage drops, the electrical resistance of the reference resistor and the ratio of the voltage drops of the first and second measurement resistors determined in the first measurement state.