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.
Patent No.:
Date of Patent:
Dec. 02, 2025
Filed:
Nov. 29, 2022
Infineon Technologies Austria Ag, Villach, AT;
Kennith Kin Leong, Villach, AT;
Infineon Technologies AG, Neubiberg, DE;
Abstract
A power semiconductor device includes: a main power switch having a drain, source, and gate; and a voltage clamp circuit in parallel with the main power switch and having a clamp voltage less than a breakdown voltage of the main power switch. The voltage clamp circuit includes: a pulldown switch having a normally-on gate electrically connected to the source of the main power switch; a plurality of series-connected diodes electrically connected between the drain of the main power switch and a drain of the pulldown switch; a voltage clamp device electrically connected between a source of the pulldown switch and the source of the main power switch; and a second power switch having a normally-off gate electrically connected to the drain of the pulldown switch, a drain electrically connected to the drain of the main power switch, and a source electrically connected to the source of the pulldown switch.