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:
May. 02, 2023
Filed:
Nov. 06, 2020
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventors:
Xiaoqing Song, Apex, NC (US);
Pietro Cairoli, Cary, NC (US);
Assignee:
ABB SCHWEIZ AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 9/04 (2006.01); G05F 3/18 (2006.01); H01C 7/12 (2006.01); H03K 17/08 (2006.01); H03K 17/10 (2006.01); H03K 17/72 (2006.01);
U.S. Cl.
CPC ...
H02H 9/042 (2013.01); G05F 3/18 (2013.01); H01C 7/12 (2013.01); H03K 17/08 (2013.01); H03K 17/105 (2013.01); H03K 17/72 (2013.01);
Abstract
A power semiconductor circuit is provided for clamping the voltage across the circuit when a power semiconductor switch is opened (i.e., turned off). The circuit may include a first surge arrester and a first semiconductor switch coupled in parallel with the power semiconductor switch. The first semiconductor switch is coupled in series with the first surge arrester. A second surge arrester may be coupled to the gate of the first semiconductor switch to control current flow through the first semiconductor switch and the first surge arrester.