Sensor motor

H - Electricity – 02 – K

Patent

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Details

H02K 23/66 (2006.01) H02K 3/28 (2006.01) H02K 21/16 (2006.01) H02K 29/12 (2006.01)

Patent

CA 2102283

A polyphase brushless DC motor has an integral automatic feedback arrangement affording excellent accuracy and a high degree of magnetic balance. The stator pole elements of the motor are identical and equidistantly spaced, and each is wound with two coils. One coil on each pole element comprises sensor circuitry; the other comprises power circuitry. As a result, all pole elements of the stator are utilized both to produce rotor drive torque and also to generate electrical signals that provide highly accurate rotor-position information.

Moteur à C.C. polyphasé sans balai, qui possède un mécanisme de rétroaction automatique permettant une excellente précision et un degré élevé de balance magnétique. Les éléments de pôle du stator du moteur sont identiques et équidistants, et chacun est enroulé avec deux bobines. Une bobine sur chaque élément de pôle comprend la circuiterie de détection, l'autre comprend la circuiterie de puissance. Comme résultat, tous les éléments de pôle du stator sont utilisés pour produire un couple d'entraînement rotor et pour émettre des signaux électriques donnant une indication très précise de la position du rotor.

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