Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Kenichi Nakazato0
Hisashi Nishimura0
Date of Patent
August 3, 2010
0Patent Application Number
123170950
Date Filed
December 19, 2008
0Patent Primary Examiner
Patent abstract
A band elimination filter 35 that eliminates or reduces a low frequency noise superposed on resolver signals S1 and S2 is provided between a synchronous detection circuit 34 that performs synchronous detection by referring to an excitation signal and a controller 36 that controls a digital angle output φ to make a deviation (sin(θ−φ)), which is the output of the synchronous detection circuit, zero.
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