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:
Jul. 16, 2024

Filed:

Nov. 10, 2021
Applicant:

Stmicroelectronics S.r.l., Agrate Brianza, IT;

Inventor:

Claudio Adragna, Monza, IT;

Assignee:

STMicroelectronics S.r.l., Agrate Brianza, IT;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/08 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02M 1/08 (2013.01);
Abstract

In an embodiment, a method for controlling a synchronous rectifier (SR) transistor of a flyback converter includes: determining a first voltage across conduction terminals of the SR transistor; asserting a turn-on signal when a body diode of the SR transistor is conducting current; asserting a turn-off signal when current flowing through the conduction terminals of the SR transistor decreases below a first threshold; generating a gating signal based on an output voltage of the flyback converter and on the first voltage; turning on the SR transistor based on the turn-on signal and on the gating signal; and turning off the SR transistor based on the turn-off signal.


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