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:
Apr. 29, 2025

Filed:

Mar. 20, 2020
Applicant:

Tridonic Gmbh & CO KG, Dornbirn, AT;

Inventor:

Reimar Klotz, Dornbirn, AT;

Assignee:

Tridonic GmbH & Co KG, Dornbirn, AT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2005.12); H02M 1/00 (2005.12); H02M 3/07 (2005.12);
U.S. Cl.
CPC ...
H02M 3/33592 (2012.12); H02M 1/0009 (2021.04); H02M 3/07 (2012.12);
Abstract

The present invention relates to a flyback converter circuit () which has: a first controllable switch () with a capacitor (); a second controllable switch (); a transformer () with a primary winding () which is coupled to the first switch () and a secondary winding () which is coupled to the second switch (); a controller () which is configured to switch off the second switch () when the current through the second switch () has reached a negative value after it has decreased to zero, the capacitor () being charged after the first switch () is switched off and discharged after the second switch () is switched off; and means () for establishing the discharge rate of the capacitor () in order to determine the current flowing through the second switch () at the time at which it is switched off.


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