Brushless d.c. motor

Details Brushless d.c. motor Brushless d.c. motor

1986-04-07

1987-10-27

Roskoski, Bernard

Electricity: motive power systems

Switched reluctance motor commutation control

318139, 318439, H02P 602

Patent

active

047032367

ABSTRACT:
A brushless d.c. motor comprises a commutation device by means of which the stator coils are connected to and disconnected from a direct-voltage source in a cyclic switching pattern for energizing said stator coils. In order to reduce torque variations as a result of transient effects in the energizing currents during commutation, the commutation device comprises means which cause the instants of disconnection and connection to be shifted by a fixed time interval relative to one another.

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