Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Lester B. Ashe0
Scott B. Wolf0
Date of Patent
March 23, 2010
Patent Application Number
11536710
Date Filed
September 29, 2006
Patent Primary Examiner
Patent abstract
A brushless DC motor operated by a microcontroller has a unique pole construction that enables it to reliably start and operate as a unipolar device so that a reduced number of electronic power switches can be used to reduce cost and complexity. The microcontroller calculated rotor position to eliminate the need for a separate sensor and thereby further reduce manufacturing cost.
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