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:
Nov. 30, 1999
Filed:
Oct. 29, 1996
Jerzy Muszynski, London, CA;
Siemens Canada Limited, Mississauga, CA;
Abstract
Five phase windings (P1-P5) of a motor 30 are disposed on a common stator 32. An rotor 34 contains three magnetic pole pairs (M1N, M1S, M2N, M2S, M3N, M3S). Each phase winding is energized for 72.degree. (electrical) corresponding to 24.degree. rotor rotation (mechanical). During the first half (36 electrical degrees) of each phase winding's electrical energization, the immediately preceding phase winding is simultaneously energized, and during the second half (36 electrical degrees) of each phase winding's electrical energization, the immediately succeeding phase winding is energized. At any given time, only two of the phase windings, and no others, are being simultaneously energized.