Minimizing magnetic interference in a variable reluctance resolver excited by 180 degree differential signals
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United States of America Patent
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Feb 24, 2015
Grant Date -
Aug 2, 2012
app pub date -
Apr 9, 2012
filing date -
Jun 13, 2009
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Abstract
A multi-pole variable reluctance resolver is balanced wired and driven by 180 degree differential signals. Capacitive passive elements may be serially added to the resolver to minimize magnetic interference and cancel flux between poles of the same polarity and orthogonal poles, as well as minimize the effect of input driving signal distortion. Symmetric networks of resistive and capacitive elements may also be added to the resolver to overcome noise sensitivity associated with balanced wired resolvers.
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