Brushless electric motor control providing reduced motor torque

Electricity: motive power systems – Switched reluctance motor commutation control

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Details

318138, 318701, 318801, H02P 602

Patent

active

055699898

ABSTRACT:
A continuous current brushless electric motor is disclosed in which the phases (W1, W2, W3) are energized sequentially, so that a time interval exists in which one phase being deactivated and another phase being activated are both energized with current. During this time interval, the current supplied to the phase being deactivated is decreasing while the current supplied to the phase being activated is increasing. The rate of decrease in the current in the phase being deactivated is controlled to be equal approximately to the difference between a predetermined reference current (Iref) and the increasing current in the phase being activated.

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