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 (31) respectively second probe pulse (32) for generating a first response pulse (33) having a first direction o...

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Bibliographic Details
Main Authors HUOWEN, Zhang, LEMAN, Dirk, LAMBRECHTS, Marc, XING, Zuo
Format Patent
LanguageEnglish
French
German
Published 03.03.2021
Subjects
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
GENERATION
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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 (31) respectively second probe pulse (32) for generating a first response pulse (33) having a first direction or polarity and a second response pulse (34) 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 (Tr1, Tr2) 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 (1100), and a motor assembly comprising said motor and driver circuit are also provided.
Bibliography:Application Number: EP20160163499