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:
Oct. 07, 2025

Filed:

Nov. 18, 2019
Applicant:

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

Inventors:

Alexander Moser, Werl, DE;

Thomas Sprink, Salzkotten, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/00 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33569 (2013.01); H02M 1/0074 (2021.05); H02M 1/0077 (2021.05); H02M 3/158 (2013.01); H02M 1/007 (2021.05);
Abstract

A switched mode power supply includes an input circuit powered by an input voltage, wherein the input voltage is based on a voltage difference between a positive input voltage and a negative input voltage; an output circuit coupled to the input circuit and configured to provide an output voltage, and a direct current isolating element between the input circuit and the output circuit and configured to observe a prescribed safety requirement with regard to isolation between the input voltage and the output voltage. The input circuit has two coupled step-down converter stages, including a first step-down converter stage configured to step down the positive input voltage and a second step-down converter stage configured to step down the negative input voltage. The two coupled step-down converter stages are connected to the input circuit upstream of the DC isolating element.


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