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. 02, 2021
Filed:
Sep. 23, 2016
Phoenix Contact Gmbh & Co. KG, Blomberg, DE;
Olaf Schmidt, Soest-Mullingsen, DE;
Jochen Zeuch, Blomberg, DE;
Phoenix Contact GmbH & Co. KG, Blomberg, DE;
Abstract
The present disclosure relates to an electrical protective circuit, comprising: an input terminal to which a main input voltage can be applied; a switching path arranged in parallel with the input terminal, wherein a controllable switch is configured to close the switching path; a sensor device connected to the input terminal and configured to detect an incorrect main input voltage present at the input terminal, wherein the sensor device is further configured to transmit a control signal to the controllable switch to close the switching path when an incorrect main input voltage is detected; and an energy supply device connected in parallel with the switching path and configured to convert a voltage drop across the closed controllable switch into a supply voltage and to apply the supply voltage to the sensor device.