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:
Dec. 21, 2021

Filed:

Feb. 19, 2020
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Tiam Poh Lau, Munich, DE;

Marcus Schaemann, Munich, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/32 (2007.01); H02H 7/12 (2006.01); H02M 3/335 (2006.01);
U.S. Cl.
CPC ...
H02M 1/32 (2013.01); H02H 7/1213 (2013.01); H02M 3/33507 (2013.01);
Abstract

An apparatus (such as a power converter circuit) includes s primary winding, an auxiliary winding, and an over-voltage protection circuit (such as a controller and corresponding one or more circuit components). The primary winding receives an input voltage. The auxiliary winding is magnetically coupled to the primary winding. The primary winding receives energy from the input voltage, the auxiliary winding receives the energy from the primary winding. The over-voltage protection circuit controls conveyance of the energy received from the primary winding through a discharge circuit path to a reference voltage (such as ground). Conveyance of the energy (as received from the auxiliary winding) associated with the input voltage through the discharge circuit path prevents damage to a respective power converter circuit during exposure of the input voltage to a power surge condition such as due to lightning.


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