Control of electrical machines
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United States of America Patent
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Jun 25, 2013
Grant Date -
Feb 17, 2011
app pub date -
Dec 1, 2008
filing date -
Nov 29, 2007
priority date (Note) -
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Abstract
An electrical machine for converting electrical energy into mechanical energy and/or mechanical energy into electrical energy, including at least one rotor position sensor device configured to undertake the steps of measuring an electrical signal during a switching cycle in an end region, and comparing the measurement with at least one similar measurement in at least one previous switching cycle to determine if a known rotor position has been reached.
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