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:
Oct. 16, 2018
Filed:
Sep. 28, 2016
Applicant:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Inventor:
Robert S. Schneider, Middleton, WI (US);
Assignee:
ROCKWELL AUTOMATION TECHNOLOGIES, INC., Mayfield Heights, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/687 (2006.01); H03K 17/56 (2006.01); H03K 17/567 (2006.01); H02M 7/515 (2007.01);
U.S. Cl.
CPC ...
H03K 17/56 (2013.01); H02M 7/515 (2013.01); H03K 17/567 (2013.01);
Abstract
A device includes a first silicon-controlled rectifier (SCR), a second SCR connected in anti-parallel with the first SCR, and a commutation module. The commutation module is configured to apply a reverse bias voltage to the first SCR or the second SCR to turn off the first SCR or the second SCR. The device further includes a voltage clamp configured to dissipate energy when the first SCR or the second SCR are turned off. The voltage clamp is charged as one of the first SCR or the second SCR are powered on.