POSITION DETECTION OF A 1-COIL OR 2- COIL MOTOR

A method for detecting rotor position for a single coil DC motor or 2-coil DC motor with non-parallel windings, with no need of Hall position sensor. The method comprises applying a first respectively second probe pulse for generating a first response pulse having a first direction or polarity and a...

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Bibliographic Details
Main Authors LAMBRECHTS Marc, XING Zuo, HUOWEN Zhang, LEMAN Dirk
Format Patent
LanguageEnglish
Published 05.10.2017
Subjects
ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVEREDIN A SINGLE OTHER SUBCLASS
MEASURING
MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE
MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
PHYSICS
TARIFF METERING APPARATUS
TESTING
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Summary:A method for detecting rotor position for a single coil DC motor or 2-coil DC motor with non-parallel windings, with no need of Hall position sensor. The method comprises applying a first respectively second probe pulse for generating a first response pulse having a first direction or polarity and a second response pulse having a second direction or polarity. The probe pulses are adapted so they do not substantially move the rotor with respect to the stator, but affect the magnetic properties of the stator. By comparing the measured effects caused by the probe pulses, the initial position of the rotor with respect to the stator is determined. A method for start-up, a motor driver circuit, and a motor assembly comprising said motor and driver circuit are also provided.
Bibliography:Application Number: US201715468730