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. 26, 2015
Filed:
Jun. 12, 2013
Robert J. Breitzmann, South Russell, OH (US);
Semyon Royak, Orange Village, OH (US);
John M. Kasunich, Mayfield Heights, OH (US);
Robert J. Breitzmann, South Russell, OH (US);
Semyon Royak, Orange Village, OH (US);
John M. Kasunich, Mayfield Heights, OH (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
Apparatus and methods are presented for mitigating overvoltages and limiting reverse motor speeds for motor drive power loss events, in which a first power dissipation circuit is enabled at the motor drive output to limit reverse rotation of a driven motor load when motor drive power is lost, and a second power dissipation circuit in a DC bus circuit is used to mitigate over voltages following restoration of motor drive power.