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:
May. 26, 2026

Filed:

Aug. 25, 2023
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Derek Bernardon, Villach, AT;

Thomas Ferianz, Bodensdorf, AT;

Filipe Esteves Tavora, Villach, AT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/041 (2006.01); H02H 9/02 (2006.01); H03K 17/081 (2006.01); H03K 17/687 (2006.01);
U.S. Cl.
CPC ...
H03K 17/04106 (2013.01); H02H 9/02 (2013.01); H03K 17/08104 (2013.01); H03K 17/687 (2013.01); H03K 2217/0027 (2013.01);
Abstract

A power electronics device includes first and second semiconductor dies. The first die includes: a main GaN power transistor; a first GaN current sense transistor having a source electrically connected to a second current sense terminal; a second GaN current sense transistor; a diode device electrically connected in series between the drains of the main GaN power transistor and second GaN current sense transistor; and a voltage protection device electrically connecting the drain of the second GaN current sense transistor to a first current sense terminal. The second die includes current sense and short circuit detection circuits electrically connected to the current sense terminals. The short circuit detection circuit detects when the drain current of the main GaN power transistor exceeds a predetermined value and when the main GaN power transistor is in saturation.


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