Electric motor assembly

Details Electric motor assembly Electric motor assembly

1996-02-29

1998-02-10

Cabeca, John W.

Electricity: motive power systems

Motor-reversing

Automatic and/or with time-delay means

318291, 318254, 318439, H02P 0624

Patent

active

057173010

ABSTRACT:
An electric motor having a permanent magnet rotor and a stable with two poles and two windings and electronic switching for controlling commutation. To ensure that the motor starts under heavy load conditions, commutation is delayed during a predetermined period of time while the rotor is travelling in a forward direction of rotation to suppress the associated braking torque.

REFERENCES:
patent: 4251758 (1981-02-01), Pedersen et al.
patent: 4514676 (1985-04-01), Grandjean et al.
patent: 4706005 (1987-11-01), Iwako
patent: 5059876 (1991-10-01), Shah
patent: 5493188 (1996-02-01), Yoshikawa et al.

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