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:
Aug. 03, 2021
Filed:
Sep. 10, 2020
Applicant:
Allegro Microsystems, Llc, Manchester, NH (US);
Inventors:
Assignee:
Allegro MicroSystems, LLC, Manchester, NH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 3/00 (2006.01); H03K 17/687 (2006.01); H03K 19/0175 (2006.01); H03K 19/0185 (2006.01); H02M 1/08 (2006.01); H03K 17/06 (2006.01);
U.S. Cl.
CPC ...
H03K 17/063 (2013.01); H03K 17/687 (2013.01);
Abstract
In one aspect, a circuit includes a gate driver having a first input connected to a first node and a second input connected to a second node; an epi diode connected to the first node; a switch connected to the first node; a capacitor having a top plate connected to the switch and a bottom plate connected to the second node; and a first clamp connected the first node and to the second node. The switch being open isolates the first node from negative transient effects from the top plate of the capacitor.