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. 24, 2024
Filed:
Jul. 14, 2021
Siemens Aktiengesellschaft, Munich, DE;
Roland Weiss, Erlangen, DE;
Karl Fleisch, Erlangen, DE;
Ingolf Hoffmann, Herzogenaurach, DE;
Alexander Itzke, Nuremberg, DE;
Anja Schnieders, Erlangen, DE;
Abderrahim Chahid, Hemhofen, DE;
Florian Zapf, Bayern, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A current measuring device for generating an output current proportional to a current to be measured includes at least two Hall sensors arranged on a circular path and oriented identically in relation to a center point. The current measuring device includes an adding circuit summing measurement signals of the Hall sensors, a subtracting circuit for eliminating an offset, a voltage-controlled current source, and a current supply with a toroidal coil having a paramagnetic and/or diamagnetic core and a DC/DC converter supplying the Hall sensors. In a method for measuring a current, a current measuring device has an adding circuit for adding the measurement signals of the Hall sensors and generating a voltage proportional to the current to be measured. An offset of the voltage is subtracted by a subtracting circuit, generating an output current with a predefined transformation ratio relative to the measured current.