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. 18, 2020
Filed:
Jun. 06, 2014
Bender Gmbh & Co. KG, Gruenberg, DE;
Dieter Hackl, Fernwald, DE;
Michael Kammer, Hungen, DE;
BENDER GMBH & CO. KG, Gruenberg, DE;
Abstract
A method and a device for a galvanically isolated AC/DC-sensitive measurement of a residual current (ΔI), includes a component sensitive to magnetic fields which switches between at least two states in the course of oscillation. A magnetic field is formed in a sphere of action of the component sensitive to magnetic fields due to the residual current (ΔI) and an oscillator signal that switches between a stateand a state. As a function of the residual current-driven magnetic field, times of stay of the oscillator signal occurring in statesandare determined and an output signal proportional to the residual current is obtained from the ratio of the times of stay.