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:
May. 05, 2020
Filed:
Jul. 02, 2015
Robert Bosch Gmbh, Stuttgart, DE;
Bernd Eckert, Vaihingen an der Enz, DE;
Steffen Eppler, Ludwigsburg, DE;
Robert Bosch GmbH, Stuttgart, DE;
Abstract
The invention relates to a method for detecting a direct-current fault current in an electrical alternating-current circuit, wherein a rectifier unit () is connected to an alternating-current network () by means of a primary side () and provides a direct current on a secondary side () and wherein the alternating-current network () is protected by means of a fault-current circuit breaker (), which interrupts the circuit if an alternating-current fault current greater than a specified alternating-current tripping threshold occurs. A direct-current fault current on the primary side () is measured and is compared with a specified direct-current tripping threshold. An alternating-current fault current is produced if the direct-current fault current lies above the tripping threshold. The invention further relates to a device () for detecting a direct-current fault current and to a charging apparatus () comprising such a device ().