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:
Mar. 23, 2021

Filed:

Sep. 04, 2019
Applicant:

Infineon Technologies Austria Ag, Villach, AT;

Inventors:

Kennith Kin Leong, Villach, AT;

Thomas Ferianz, Bodensdorf, AT;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03B 1/00 (2006.01); H03K 3/00 (2006.01); H03K 17/687 (2006.01); H01L 23/495 (2006.01); H01L 23/00 (2006.01); H02M 7/06 (2006.01);
U.S. Cl.
CPC ...
H03K 17/687 (2013.01); H01L 23/49575 (2013.01); H01L 24/08 (2013.01); H01L 24/48 (2013.01); H01L 2224/08054 (2013.01); H01L 2224/48137 (2013.01); H01L 2924/12 (2013.01); H01L 2924/13064 (2013.01); H01L 2924/1425 (2013.01); H02M 7/06 (2013.01);
Abstract

Transformer-driven power switch devices are provided for switching high currents. These devices include power switches, such as Gallium Nitride (GaN) transistors. Transformers are used to transfer both control timing and power for controlling the power switches. These transformers may be careless, such that they may be integrated within a silicon die. Rectifiers, pulldown control circuitry, and related are preferably integrated in the same die as a power switch, e.g., in a GaN die, such that a transformer-driven switch device is entirely comprised on a silicon die and a GaN die, and does not necessarily require a (large) cored transformer, auxiliary power supplies, or level shifting circuitry.


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