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. 27, 2008
Filed:
Aug. 19, 2005
Applicant:
Scott Mayhew, North Aurora, IL (US);
Inventor:
Scott Mayhew, North Aurora, IL (US);
Assignee:
Siemens Energy & Automation, Inc., Alpharetta, GA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P 1/24 (2006.01);
U.S. Cl.
CPC ...
Abstract
A motor controller system includes solid state switches for connection between an AC line and motor terminals for controlling application of AC power to a motor. Voltage sensors sense voltage across each of the solid state switches and AC line voltage. A control circuit controls operation of the solid state switches. The control circuit compares the sensed voltages across each of the solid state switches with the AC line voltage in a non-run mode to determine if there is a shorted solid state switch.