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. 20, 2019
Filed:
Oct. 02, 2017
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Kevin Baumann, Cedarburg, WI (US);
Richard Lukaszewski, New Berlin, WI (US);
Rangarajan Tallam, Germantown, WI (US);
Lixiang Wei, Mequon, WI (US);
Lee Gettelfinger, Mequon, WI (US);
Garron Morris, Whitefish Bay, WI (US);
Bruce Weiss, Milwaukee, WI (US);
Neil Gollhardt, Fox Point, WI (US);
Navid R. Zargari, Cambridge, CA;
William Brumsickle, Madison, WI (US);
Robert Wright Reese, Germantown, WI (US);
Stephen E. Denning, Silver Lake, OH (US);
Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US);
Abstract
Motor drive power conversion systems are provided including a rectifier and a switching inverter, wherein the switching devices of the rectifier, the inverter and/or of a DC/DC converter are silicon carbide switches, such as silicon carbide MOSFETs. Driver circuits are provided for providing bipolar gate drive signals to the silicon carbide MOSFETs, including providing negative gate-source voltage for controlling the off state of enhancement mode low side drivers and positive gate-source voltage for controlling the off state of enhancement mode high side drivers.