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:
Jun. 01, 2021
Filed:
Jan. 22, 2018
Applicant:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Inventors:
Andrew J. Roberts, Milwaukee, WI (US);
Yogesh P. Patel, Grafton, WI (US);
Jiangang Hu, Grafton, WI (US);
Lixiang Wei, Mequon, WI (US);
Assignee:
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 7/125 (2006.01); H02H 7/122 (2006.01); H02M 1/36 (2007.01); H02H 1/00 (2006.01); H02M 1/32 (2007.01); H02H 7/12 (2006.01); H02P 27/06 (2006.01); H02M 5/458 (2006.01); H02M 7/219 (2006.01);
U.S. Cl.
CPC ...
H02H 7/1252 (2013.01); H02H 1/0007 (2013.01); H02H 7/1216 (2013.01); H02H 7/1222 (2013.01); H02M 1/32 (2013.01); H02M 1/36 (2013.01); H02M 5/4585 (2013.01); H02M 7/219 (2013.01); H02P 27/06 (2013.01);
Abstract
Power converters, protection systems and methods to protect a precharge circuit in which a precharge resistor voltage is indirectly monitored during a normal operating mode, and a rectifier and an inverter are selectively disabled in response to the indirectly measured precharge resistor voltage indicating a fault in a precharge circuit SCR.