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:
Oct. 04, 2022
Filed:
Mar. 11, 2019
Applicant:
Fujitsu Technology Solutions Intellectual Property Gmbh, Munich, DE;
Inventors:
Rudolf Häußermann, Munich, DE;
Rainer Staude, Munich, DE;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 7/20 (2006.01); G06F 1/28 (2006.01); H02H 3/20 (2006.01);
U.S. Cl.
CPC ...
H02H 7/20 (2013.01); G06F 1/28 (2013.01); H02H 3/20 (2013.01);
Abstract
A protective circuit includes an input that provides a first supply voltage, a voltage regulator that provides a second supply voltage based on the first supply voltage, a measuring device that identifies an impedance of the voltage regulator, and a self-locking switching element configured to connect the first supply voltage with the voltage regulator if an impedance of the voltage regulator exceeds a predefined impedance value.