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. 24, 2011
Filed:
Dec. 29, 2008
Jeffrey A. Brunner, Greenfield, WI (US);
Kalyan P. Gokhale, New Berlin, WI (US);
Douglas Karraker, Muskego, WI (US);
Donald J. Truettner, Waukesha, WI (US);
Dennis Tyczkowski, Franklin, WI (US);
Jeffrey A. Brunner, Greenfield, WI (US);
Kalyan P. Gokhale, New Berlin, WI (US);
Douglas Karraker, Muskego, WI (US);
Donald J. Truettner, Waukesha, WI (US);
Dennis Tyczkowski, Franklin, WI (US);
ABB Inc., Cary, NC (US);
Abstract
A motor bypass is controlled by a digital signal processor (DSP) with embedded control software that allows fault detection and annunciation, serial communications between both a variable frequency drive (VFD) and a bypass controller and the bypass controller and a host computer. The use of the DSP and embedded control software further allows for contactor coil control to provide fault tolerant operation as well as fault condition detection and annunciation to the user.