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.

Date of Patent:
Nov. 30, 2021

Filed:

Dec. 18, 2018
Applicant:

Phoenix Contact Gmbh & Co. KG, Blomberg, DE;

Inventors:

Elmar Schaper, Luegde, DE;

Markus Rohs, Blomberg, DE;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H03K 3/012 (2006.01); H03K 17/567 (2006.01);
U.S. Cl.
CPC ...
H03K 3/012 (2013.01); H03K 17/567 (2013.01);
Abstract

A circuit assembly includes a first signal branch connecting a signal connection to an electrical load via a semiconductor switch and a second signal branch connecting the signal connection to the electrical load via a relay. When a sensor detects a polarity change in an electrical signal within a test time interval, a controller may close the semiconductor switch at a first signal time such that electrical energy is supplied to the electrical load, actuate the relay at a second signal time after the semiconductor switch has been closed, and open the semiconductor switch after the relay has been closed such that electrical energy is supplied to the electrical load solely via the second signal branch.


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