Apparatus employing coil inductance determination and method for operating the apparatus
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United States of America Patent
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Feb 6, 2018
Grant Date -
Mar 17, 2016
app pub date -
May 6, 2014
filing date -
May 7, 2013
priority date (Note) -
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Abstract
The invention relates to an apparatus having an electric motor with a stator, an armature, especially a rotor, and at least one coil, wherein the apparatus further comprises detection means configured to determine the inductance L of the coil by measuring at least one electrical quantity related to the coil during operation of the motor. The invention further relates to a method for operating such an apparatus, wherein the detection means of the apparatus determine the inductance L of the coil and/or the position of the armature as a function of the inductance L of the coil by measuring at least one electrical quantity related to the coil during operation of the motor.
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